diff --git a/backend/src/main/java/com/goldenchart/service/StrategyDslToTa4jAdapter.java b/backend/src/main/java/com/goldenchart/service/StrategyDslToTa4jAdapter.java
index 0d99a33..e6e9ff5 100644
--- a/backend/src/main/java/com/goldenchart/service/StrategyDslToTa4jAdapter.java
+++ b/backend/src/main/java/com/goldenchart/service/StrategyDslToTa4jAdapter.java
@@ -86,6 +86,8 @@ public class StrategyDslToTa4jAdapter {
         Map.entry("VR",                   "VR"),
         Map.entry("DISPARITY",            "Disparity"),
         Map.entry("DONCHIAN",             "DonchianChannels"),
+        Map.entry("NEW_HIGH",             "PriceExtreme"),
+        Map.entry("NEW_LOW",              "PriceExtreme"),
         Map.entry("VOLUME",               "VOLUME")
     );
 
@@ -281,6 +283,15 @@ public class StrategyDslToTa4jAdapter {
             return buildCrossTimeframeCompositeRule(cond, ctx);
         }
 
+        PriceExtremeNorm px = normalizePriceExtremeCondition(cond);
+        if (px != null) {
+            indType    = px.indType();
+            condType   = px.condType();
+            leftField  = px.leftField();
+            rightField = px.rightField();
+            condPeriod = px.period();
+        }
+
         // DSL 타입(STOCHASTIC 등) → DB 레지스트리 키(Stochastic 등) 변환 후 파라미터 조회
         String registryKey = toRegistryKey(indType);
         Map<String, Object> indParams = params != null
@@ -291,7 +302,7 @@ public class StrategyDslToTa4jAdapter {
             Indicator<Num> left  = resolveField(leftField,  indType, indParams, series, condPeriod, leftPeriod);
             Indicator<Num> right = resolveField(rightField, indType, indParams, series, condPeriod, rightPeriod);
 
-            return switch (condType) {
+            Rule core = switch (condType) {
                 case "GT"       -> new OverIndicatorRule(left, right);
                 case "LT"       -> new UnderIndicatorRule(left, right);
                 // GTE/LTE: OverIndicator OR 동일 (epsilon 비교)
@@ -336,12 +347,72 @@ public class StrategyDslToTa4jAdapter {
                     yield new BooleanRule(false);
                 }
             };
+            if (px != null) {
+                return nanSafeCompareRule(core, left, right);
+            }
+            return core;
         } catch (Exception e) {
             log.warn("[Adapter] 조건 빌드 실패 ind={} cond={}: {}", indType, condType, e.getMessage());
             return new BooleanRule(false);
         }
     }
 
+    /**
+     * 신고가·신저가 DSL 정규화 — 구버전 DC_UPPER/DC_LOWER·복합지표 승격 필드를 NH_PRIOR/NL_PRIOR 로 통일.
+     */
+    private record PriceExtremeNorm(String indType, String condType, String leftField, String rightField, int period) {}
+
+    private PriceExtremeNorm normalizePriceExtremeCondition(JsonNode cond) {
+        String ind = cond.path("indicatorType").asText("");
+        if (!"NEW_HIGH".equals(ind) && !"NEW_LOW".equals(ind)) return null;
+
+        String ct = cond.path("conditionType").asText("GT");
+        String left = cond.path("leftField").asText("CLOSE_PRICE");
+        String right = cond.path("rightField").asText("");
+
+        int period = cond.path("period").asInt(-1);
+        int leftP = cond.path("leftPeriod").asInt(-1);
+        if (period <= 0) period = leftP > 0 ? leftP : 9;
+
+        if (right.startsWith("DC_UPPER_")) {
+            period = parseTrailingInt(right, "DC_UPPER_", period);
+            right = "NH_PRIOR_" + period;
+        } else if (right.startsWith("DC_LOWER_")) {
+            period = parseTrailingInt(right, "DC_LOWER_", period);
+            right = "NL_PRIOR_" + period;
+        } else if (right.startsWith("NH_PRIOR_")) {
+            period = parseTrailingInt(right, "NH_PRIOR_", period);
+        } else if (right.startsWith("NL_PRIOR_")) {
+            period = parseTrailingInt(right, "NL_PRIOR_", period);
+        } else if (right.isBlank() || "NONE".equals(right)) {
+            right = "NEW_HIGH".equals(ind) ? "NH_PRIOR_" + period : "NL_PRIOR_" + period;
+        }
+
+        if (left.isBlank() || "NONE".equals(left)) left = "CLOSE_PRICE";
+
+        // Donchian 당일봉 포함 DC_* + CROSS 는 거의 성립하지 않음 → PRIOR 필드 + GTE/LTE
+        if ("NEW_HIGH".equals(ind) && "CROSS_UP".equals(ct) && !right.startsWith("NH_PRIOR_")) {
+            ct = "GTE";
+        } else if ("NEW_LOW".equals(ind) && "CROSS_DOWN".equals(ct) && !right.startsWith("NL_PRIOR_")) {
+            ct = "LTE";
+        }
+
+        return new PriceExtremeNorm(ind, ct, left, right, period);
+    }
+
+    /** 직전 N봉 극값이 NaN 인 구간(워밍업)에서는 조건 미충족 */
+    private Rule nanSafeCompareRule(Rule inner, Indicator<Num> left, Indicator<Num> right) {
+        return new Rule() {
+            @Override
+            public boolean isSatisfied(int index, TradingRecord tradingRecord) {
+                Num l = left.getValue(index);
+                Num r = right.getValue(index);
+                if (l == null || r == null || l.isNaN() || r.isNaN()) return false;
+                return inner.isSatisfied(index, tradingRecord);
+            }
+        };
+    }
+
     /** 복합지표 — leftCandleType / rightCandleType 이 서로 다를 때 교차 시간봉 평가 */
     private boolean needsCrossTimeframeComposite(JsonNode cond, RuleBuildContext ctx) {
         if (!cond.path("composite").asBoolean(false)) return false;
@@ -611,6 +682,15 @@ public class StrategyDslToTa4jAdapter {
             return new WilliamsRIndicator(s, period);
         }
         if (field.equals("WILLIAMS_R_VALUE")) return new WilliamsRIndicator(s, intP(p, "length", 14));
+        // 신고가·신저가 — 직전 N봉 최고/최저 (당일 봉 제외, PreviousValueIndicator)
+        if (field.startsWith("NH_PRIOR_")) {
+            int period = parseTrailingInt(field, "NH_PRIOR_", intP(p, "length", 9));
+            return priorHighestHigh(s, period);
+        }
+        if (field.startsWith("NL_PRIOR_")) {
+            int period = parseTrailingInt(field, "NL_PRIOR_", intP(p, "length", 9));
+            return priorLowestLow(s, period);
+        }
         // Donchian Channel — DC_UPPER_20 / DC_LOWER_10 등 기간 접미사
         if (field.startsWith("DC_UPPER_")) {
             int period = parseTrailingInt(field, "DC_UPPER_", intP(p, "length", 20));
@@ -857,6 +937,25 @@ public class StrategyDslToTa4jAdapter {
         }
     }
 
+    /**
+     * 직전 N봉 고가 중 최고값 (현재 봉 제외).
+     * index t 에서 max(high[t-N]..high[t-1]).
+     */
+    private Indicator<Num> priorHighestHigh(BarSeries s, int period) {
+        HighPriceIndicator high = new HighPriceIndicator(s);
+        HighestValueIndicator highest = new HighestValueIndicator(high, period);
+        return new PreviousValueIndicator(highest, 1);
+    }
+
+    /**
+     * 직전 N봉 저가 중 최저값 (현재 봉 제외).
+     */
+    private Indicator<Num> priorLowestLow(BarSeries s, int period) {
+        LowPriceIndicator low = new LowPriceIndicator(s);
+        LowestValueIndicator lowest = new LowestValueIndicator(low, period);
+        return new PreviousValueIndicator(lowest, 1);
+    }
+
     // ── 파라미터 헬퍼 ─────────────────────────────────────────────────────────
 
     private int intP(Map<String, Object> p, String k, int def) {
diff --git a/backend/src/test/java/com/goldenchart/service/PriceExtremeRuleTest.java b/backend/src/test/java/com/goldenchart/service/PriceExtremeRuleTest.java
new file mode 100644
index 0000000..b178cb5
--- /dev/null
+++ b/backend/src/test/java/com/goldenchart/service/PriceExtremeRuleTest.java
@@ -0,0 +1,213 @@
+package com.goldenchart.service;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.ta4j.core.BarSeries;
+import org.ta4j.core.BaseBarSeriesBuilder;
+import org.ta4j.core.Rule;
+import org.ta4j.core.TradingRecord;
+import org.ta4j.core.bars.TimeBarBuilderFactory;
+import org.ta4j.core.num.DoubleNumFactory;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ * 9일 신고가 매수 / 9일 신저가 매도 — Rule·백테스트 루프 동작 검증.
+ */
+class PriceExtremeRuleTest {
+
+    private static final ObjectMapper MAPPER = new ObjectMapper();
+    private StrategyDslToTa4jAdapter adapter;
+
+    @BeforeEach
+    void setUp() {
+        adapter = new StrategyDslToTa4jAdapter();
+    }
+
+    @Test
+    void nhPrior_buyGte_firesOnBreakout_notOnFirstBars() throws Exception {
+        BarSeries series = buildTrendSeries(120, true);
+        Rule buy = rule(series, """
+            { "type": "CONDITION", "condition": {
+              "indicatorType": "NEW_HIGH",
+              "conditionType": "GTE",
+              "leftField": "CLOSE_PRICE",
+              "rightField": "NH_PRIOR_9",
+              "period": 9
+            }}
+            """);
+
+        List<Integer> hits = satisfiedIndices(buy, series);
+        assertTrue(hits.stream().noneMatch(i -> i < 9),
+                "9봉 미만에서는 신고가선이 정의되지 않아 매수 조건이 없어야 함");
+        assertFalse(hits.isEmpty(), "상승 구간에서 최소 1회 이상 매수 조건 충족");
+    }
+
+    @Test
+    void nlPrior_sellLte_firesOnBreakdown() throws Exception {
+        BarSeries series = buildTrendSeries(120, false);
+        Rule sell = rule(series, """
+            { "type": "CONDITION", "condition": {
+              "indicatorType": "NEW_LOW",
+              "conditionType": "LTE",
+              "leftField": "CLOSE_PRICE",
+              "rightField": "NL_PRIOR_9",
+              "period": 9
+            }}
+            """);
+
+        List<Integer> hits = satisfiedIndices(sell, series);
+        assertFalse(hits.isEmpty(), "하락 구간에서 신저가 이탈 조건이 최소 1회 충족되어야 함");
+    }
+
+    /** LONG_ONLY 백테스트 루프 — 매수 후 하락 시 매도가 나와야 함 */
+    @Test
+    void longOnlyLoop_buyThenSell_completesRoundTrip() throws Exception {
+        BarSeries series = buildCrashThenRecoverSeries(80);
+        Rule buy = rule(series, """
+            { "type": "CONDITION", "condition": {
+              "indicatorType": "NEW_HIGH", "conditionType": "GTE",
+              "leftField": "CLOSE_PRICE", "rightField": "NH_PRIOR_9", "period": 9
+            }}
+            """);
+        Rule sell = rule(series, """
+            { "type": "CONDITION", "condition": {
+              "indicatorType": "NEW_LOW", "conditionType": "LTE",
+              "leftField": "CLOSE_PRICE", "rightField": "NL_PRIOR_9", "period": 9
+            }}
+            """);
+
+        SimResult sim = simulateLongOnly(buy, sell, series);
+        assertTrue(sim.buyBars.size() >= 1, "매수 시그널 최소 1회");
+        assertTrue(sim.sellBars.size() >= 1,
+                "하락 구간에서 신저가 매도가 나와야 함. buys=" + sim.buyBars + " sells=" + sim.sellBars);
+    }
+
+    @Test
+    void normalizedLegacySell_inLoop_producesSellAfterAdapterMigrate() throws Exception {
+        BarSeries series = buildCrashThenRecoverSeries(80);
+        Rule buy = rule(series, """
+            { "type": "CONDITION", "condition": {
+              "indicatorType": "NEW_HIGH", "conditionType": "GTE",
+              "leftField": "CLOSE_PRICE", "rightField": "NH_PRIOR_9", "period": 9
+            }}
+            """);
+        Rule sellLegacy = rule(series, """
+            { "type": "CONDITION", "condition": {
+              "indicatorType": "NEW_LOW",
+              "conditionType": "CROSS_DOWN",
+              "composite": true,
+              "leftField": "CLOSE_PRICE",
+              "rightField": "DC_LOWER_9",
+              "leftPeriod": 9,
+              "rightPeriod": 20
+            }}
+            """);
+
+        SimResult sim = simulateLongOnly(buy, sellLegacy, series);
+        assertTrue(sim.buyBars.size() >= 1);
+        assertTrue(sim.sellBars.size() >= 1,
+                "어댑터가 DC_LOWER→NL_PRIOR 로 정규화하면 하락 구간에서 매도가 나와야 함");
+    }
+
+    // ── helpers ─────────────────────────────────────────────────────────────
+
+    private Rule rule(BarSeries series, String json) throws Exception {
+        JsonNode node = MAPPER.readTree(json);
+        return adapter.toRule(node, series, Map.of());
+    }
+
+    private List<Integer> satisfiedIndices(Rule rule, BarSeries series) {
+        List<Integer> hits = new ArrayList<>();
+        TradingRecord record = null;
+        for (int i = 0; i < series.getBarCount(); i++) {
+            if (rule.isSatisfied(i, record)) hits.add(i);
+        }
+        return hits;
+    }
+
+    private static BarSeries buildTrendSeries(int barCount, boolean up) {
+        Duration period = Duration.ofDays(1);
+        BarSeries series = new BaseBarSeriesBuilder()
+                .withName("trend")
+                .withNumFactory(DoubleNumFactory.getInstance())
+                .withBarBuilderFactory(new TimeBarBuilderFactory())
+                .build();
+        TimeBarBuilderFactory factory = new TimeBarBuilderFactory();
+        Instant base = Instant.parse("2024-01-01T00:00:00Z");
+        double price = 100.0;
+        for (int i = 0; i < barCount; i++) {
+            double delta = up ? 1.5 : -1.5;
+            double close = price + delta;
+            double high = Math.max(price, close) + 0.5;
+            double low = Math.min(price, close) - 0.5;
+            factory.createBarBuilder(series)
+                    .timePeriod(period)
+                    .endTime(base.plus(period.multipliedBy(i + 1L)))
+                    .openPrice(price).highPrice(high).lowPrice(low).closePrice(close)
+                    .volume(1000)
+                    .add();
+            price = close;
+        }
+        return series;
+    }
+
+    /** 초반 횡보 후 급락 → 회복 (차트와 유사) */
+    private static BarSeries buildCrashThenRecoverSeries(int barCount) {
+        Duration period = Duration.ofDays(1);
+        BarSeries series = new BaseBarSeriesBuilder()
+                .withName("crash-recover")
+                .withNumFactory(DoubleNumFactory.getInstance())
+                .withBarBuilderFactory(new TimeBarBuilderFactory())
+                .build();
+        TimeBarBuilderFactory factory = new TimeBarBuilderFactory();
+        Instant base = Instant.parse("2024-01-01T00:00:00Z");
+        double price = 100_000_000;
+        for (int i = 0; i < barCount; i++) {
+            double chg;
+            if (i < 15) chg = (i % 3 - 1) * 0.002;
+            else if (i < 35) chg = -0.04;
+            else chg = 0.008;
+            double close = price * (1 + chg);
+            double high = Math.max(price, close) * 1.005;
+            double low = Math.min(price, close) * 0.995;
+            factory.createBarBuilder(series)
+                    .timePeriod(period)
+                    .endTime(base.plus(period.multipliedBy(i + 1L)))
+                    .openPrice(price).highPrice(high).lowPrice(low).closePrice(close)
+                    .volume(1000)
+                    .add();
+            price = close;
+        }
+        return series;
+    }
+
+    private SimResult simulateLongOnly(Rule entryRule, Rule exitRule, BarSeries series) {
+        List<Integer> buyBars = new ArrayList<>();
+        List<Integer> sellBars = new ArrayList<>();
+        boolean inPosition = false;
+        org.ta4j.core.BaseTradingRecord record = new org.ta4j.core.BaseTradingRecord();
+        for (int i = 0; i < series.getBarCount(); i++) {
+            if (!inPosition) {
+                if (entryRule.isSatisfied(i, record)) {
+                    buyBars.add(i);
+                    inPosition = true;
+                }
+            } else if (exitRule.isSatisfied(i, record)) {
+                sellBars.add(i);
+                inPosition = false;
+            }
+        }
+        return new SimResult(buyBars, sellBars);
+    }
+
+    private record SimResult(List<Integer> buyBars, List<Integer> sellBars) {}
+}
diff --git a/frontend/src/components/VirtualTradingPage.tsx b/frontend/src/components/VirtualTradingPage.tsx
index 1245fb6..3e92a6d 100644
--- a/frontend/src/components/VirtualTradingPage.tsx
+++ b/frontend/src/components/VirtualTradingPage.tsx
@@ -7,6 +7,8 @@ import {
   loadPaperTrades,
   loadStrategies,
   saveLiveStrategySettings,
+  pinCandleWatch,
+  loadLiveStrategySettings,
   type PaperSummaryDto,
   type PaperTradeDto,
   type StrategyDto,
@@ -39,7 +41,9 @@ import {
   type VirtualSessionConfig,
   type VirtualTargetItem,
   type VirtualCardViewMode,
+  resolveTargetCandleType,
 } from '../utils/virtualTradingStorage';
+import { normalizeStartCandleType } from '../utils/strategyStartNodes';
 import { useAppSettings, resolveAppDefaults } from '../hooks/useAppSettings';
 import { coerceFiniteNumber } from '../utils/safeFormat';
 import {
@@ -231,10 +235,15 @@ const VirtualTradingPage: React.FC<Props> = ({
       t.market === market ? { ...t, strategyId } : t,
     ));
     if (!session.running || !strategyId) return;
+    const target = targets.find(t => t.market === market);
+    const candleType = normalizeStartCandleType(
+      resolveTargetCandleType(target ?? { candleType: undefined }, snapshots[market]?.timeframe),
+    );
     try {
       await saveLiveStrategySettings({
         market,
         strategyId,
+        candleType,
         isLiveCheck: true,
         executionType: session.executionType,
         positionMode: session.positionMode,
@@ -243,7 +252,59 @@ const VirtualTradingPage: React.FC<Props> = ({
     } catch {
       window.alert('종목 전략 변경 저장에 실패했습니다.');
     }
-  }, [session]);
+  }, [session, targets, snapshots]);
+
+  const handleTargetCandleTypeChange = useCallback(async (market: string, candleType: string) => {
+    const normalized = normalizeStartCandleType(candleType);
+    setTargets(prev => prev.map(t =>
+      t.market === market ? { ...t, candleType: normalized } : t,
+    ));
+    if (!session.running) return;
+    const target = targets.find(t => t.market === market);
+    const strategyId = target?.strategyId ?? session.globalStrategyId;
+    if (!strategyId) return;
+    try {
+      await saveLiveStrategySettings({
+        market,
+        strategyId,
+        candleType: normalized,
+        isLiveCheck: true,
+        executionType: session.executionType,
+        positionMode: session.positionMode,
+        skipWatchlistSync: true,
+      });
+      await pinCandleWatch(market, normalized);
+      if (normalized !== '1m') {
+        await pinCandleWatch(market, '1m');
+      }
+    } catch {
+      window.alert('종목 평가 분봉 변경 저장에 실패했습니다.');
+    }
+  }, [session, targets]);
+
+  useEffect(() => {
+    let cancelled = false;
+    const missing = targets.filter(t => !t.candleType);
+    if (missing.length === 0) return;
+    void Promise.all(
+      missing.map(async t => {
+        try {
+          const s = await loadLiveStrategySettings(t.market);
+          return { market: t.market, candleType: s.candleType };
+        } catch {
+          return { market: t.market, candleType: undefined };
+        }
+      }),
+    ).then(rows => {
+      if (cancelled) return;
+      setTargets(prev => prev.map(t => {
+        const row = rows.find(r => r.market === t.market);
+        if (t.candleType || !row?.candleType) return t;
+        return { ...t, candleType: normalizeStartCandleType(row.candleType) };
+      }));
+    });
+    return () => { cancelled = true; };
+  }, [targets.map(t => `${t.market}:${t.candleType ?? ''}`).join('|')]);
 
   const resyncRunningSession = useCallback(async (nextSession: VirtualSessionConfig) => {
     if (!session.running || targets.length === 0) return;
@@ -334,6 +395,7 @@ const VirtualTradingPage: React.FC<Props> = ({
           snapshots={snapshots}
           session={session}
           onTargetStrategyChange={(market, strategyId) => void handleTargetStrategyChange(market, strategyId)}
+          onTargetCandleTypeChange={(market, ct) => void handleTargetCandleTypeChange(market, ct)}
           liveStatusByMarket={mergedLiveStatus}
           lastTickAtByMarket={lastTickAtByMarket}
           selectedMarket={selectedMarket}
diff --git a/frontend/src/components/strategyEditor/ConditionNodeSettings.tsx b/frontend/src/components/strategyEditor/ConditionNodeSettings.tsx
index b684c17..eaefc7c 100644
--- a/frontend/src/components/strategyEditor/ConditionNodeSettings.tsx
+++ b/frontend/src/components/strategyEditor/ConditionNodeSettings.tsx
@@ -9,6 +9,7 @@ import {
   getConditionValuePeriod,
   getCompositePeriodPresetOptions,
   getPeriodPresetOptions,
+  getPeriodSettingsLabel,
   getThresholdBounds,
   getThresholdPresetOptions,
   hasEditableThreshold,
@@ -121,7 +122,7 @@ export default function ConditionNodeSettings({
         </>
       ) : usesValuePeriodField(condition) ? (
         <label className="se-flow-settings-field">
-          <span>{condition.indicatorType} 기간 (일)</span>
+          <span>{getPeriodSettingsLabel(condition) ?? `${condition.indicatorType} 기간 (일)`}</span>
           <ComboNumberInput
             value={getConditionValuePeriod(condition, def)}
             options={periodPresets}
diff --git a/frontend/src/components/strategyEditor/paletteCategories.ts b/frontend/src/components/strategyEditor/paletteCategories.ts
index faf3294..203d0e7 100644
--- a/frontend/src/components/strategyEditor/paletteCategories.ts
+++ b/frontend/src/components/strategyEditor/paletteCategories.ts
@@ -1,6 +1,6 @@
 /** 팔레트·Logic Expression 공통 — 지표 카테고리 */
 
-export const BAND_INDICATORS = new Set(['MA', 'EMA', 'BOLLINGER', 'DONCHIAN', 'ICHIMOKU']);
+export const BAND_INDICATORS = new Set(['MA', 'EMA', 'BOLLINGER', 'DONCHIAN', 'NEW_HIGH', 'NEW_LOW', 'ICHIMOKU']);
 
 export type PaletteIndicatorCategory = 'band' | 'ind';
 
diff --git a/frontend/src/components/virtual/VirtualTargetCard.tsx b/frontend/src/components/virtual/VirtualTargetCard.tsx
index 1104ce4..de1d475 100644
--- a/frontend/src/components/virtual/VirtualTargetCard.tsx
+++ b/frontend/src/components/virtual/VirtualTargetCard.tsx
@@ -5,6 +5,9 @@ import type { VirtualIndicatorSnapshot } from '../../hooks/useVirtualIndicatorSn
 import { useLiveReceiveFlash } from '../../hooks/useLiveReceiveFlash';
 import type { ChartRealtimeSource } from '../../hooks/useChartRealtimeData';
 import { buildConditionMetrics, resolveVirtualTradeTiming } from '../../utils/virtualSignalMetrics';
+import { candleTypeToTimeframe } from '../../utils/strategyToChartIndicators';
+import { normalizeStartCandleType } from '../../utils/strategyStartNodes';
+import type { Timeframe } from '../../types';
 import VirtualLiveBadge from './VirtualLiveBadge';
 import type { VirtualLiveStatus } from '../../hooks/useVirtualTargetLiveStatus';
 import type { VirtualCardViewMode } from '../../utils/virtualTradingStorage';
@@ -13,6 +16,7 @@ import VirtualTargetSignalPanel from './VirtualTargetSignalPanel';
 import type { Theme } from '../../types';
 import type { TickerData } from '../../hooks/useMarketTicker';
 import VirtualTargetQuote from './VirtualTargetQuote';
+import VirtualTargetCardFoot from './VirtualTargetCardFoot';
 
 export type VirtualCardDisplayMode = 'signal' | 'chart';
 
@@ -23,6 +27,8 @@ interface Props {
   strategyId: number | null;
   globalStrategyId: number | null;
   onStrategyChange?: (strategyId: number | null) => void;
+  candleType: string;
+  onCandleTypeChange?: (candleType: string) => void;
   snapshot: VirtualIndicatorSnapshot | undefined;
   running: boolean;
   liveStatus?: VirtualLiveStatus;
@@ -47,6 +53,8 @@ const VirtualTargetCard: React.FC<Props> = ({
   strategyId,
   globalStrategyId,
   onStrategyChange,
+  candleType,
+  onCandleTypeChange,
   snapshot,
   running,
   liveStatus = 'idle',
@@ -65,7 +73,6 @@ const VirtualTargetCard: React.FC<Props> = ({
 }) => {
   const ko = getKoreanName(market);
   const sym = market.replace(/^KRW-/, '');
-  const tf = snapshot?.timeframe ?? '—';
   const rows = snapshot?.rows ?? [];
 
   const metrics = useMemo(() => buildConditionMetrics(rows), [rows]);
@@ -75,6 +82,8 @@ const VirtualTargetCard: React.FC<Props> = ({
 
   const isDetail = viewMode === 'detail';
   const isChart = displayMode === 'chart';
+  const evalCandleType = normalizeStartCandleType(candleType);
+  const chartTimeframe = candleTypeToTimeframe(evalCandleType) as Timeframe;
 
   const receiveSignal = useMemo(() => {
     if (!running) return null;
@@ -113,23 +122,6 @@ const VirtualTargetCard: React.FC<Props> = ({
             <span className="vtd-card-ko">{ko}</span>
             <span className="vtd-card-sym">{sym}</span>
           </div>
-          <label className="vtd-card-strategy-field" onClick={e => e.stopPropagation()}>
-            <select
-              className="vtd-card-strategy-select"
-              aria-label="투자전략"
-              value={strategyId ?? globalStrategyId ?? ''}
-              onChange={e => {
-                const v = e.target.value;
-                onStrategyChange?.(v ? Number(v) : null);
-              }}
-            >
-              <option value="">— 선택 —</option>
-              {strategies.map(s => (
-                <option key={s.id} value={s.id}>{s.name}</option>
-              ))}
-            </select>
-          </label>
-          <span className="vtd-card-tf">시간봉 {tf}</span>
         </div>
         <div className="vtd-card-head-actions">
           {onEnterFocus && (
@@ -185,6 +177,7 @@ const VirtualTargetCard: React.FC<Props> = ({
           running={running}
           chartRealtimeSource={chartRealtimeSource}
           chartSeriesPriceLabels={chartSeriesPriceLabels}
+          chartTimeframe={chartTimeframe}
         />
       ) : (
         <VirtualTargetSignalPanel
@@ -193,6 +186,16 @@ const VirtualTargetCard: React.FC<Props> = ({
           receiving={highlightReceiving}
         />
       )}
+
+      <VirtualTargetCardFoot
+        snapshot={snapshot}
+        strategies={strategies}
+        strategyId={strategyId}
+        globalStrategyId={globalStrategyId}
+        candleType={evalCandleType}
+        onStrategyChange={onStrategyChange}
+        onCandleTypeChange={onCandleTypeChange}
+      />
     </div>
   );
 };
diff --git a/frontend/src/components/virtual/VirtualTargetCardChart.tsx b/frontend/src/components/virtual/VirtualTargetCardChart.tsx
index 286b068..b5d913e 100644
--- a/frontend/src/components/virtual/VirtualTargetCardChart.tsx
+++ b/frontend/src/components/virtual/VirtualTargetCardChart.tsx
@@ -33,6 +33,8 @@ interface Props {
   chartSeriesPriceLabels?: boolean;
   /** 전체보기 분할 pane — 캔버스 높이 100% */
   fillHeight?: boolean;
+  /** 카드 푸터 평가 분봉과 동기화 */
+  chartTimeframe?: Timeframe;
 }
 
 const noop = () => {};
@@ -45,14 +47,21 @@ const VirtualTargetCardChart: React.FC<Props> = ({
   chartRealtimeSource = 'BACKEND_STOMP',
   chartSeriesPriceLabels = true,
   fillHeight = false,
+  chartTimeframe,
 }) => {
   const { getParams, getVisualConfig } = useIndicatorSettings();
   const tfOptions = useMemo(() => resolveStrategyTimeframes(strategy), [strategy]);
-  const [timeframe, setTimeframe] = useState<Timeframe>(() => resolveStrategyPrimaryTimeframe(strategy));
+  const [timeframe, setTimeframe] = useState<Timeframe>(
+    () => chartTimeframe ?? resolveStrategyPrimaryTimeframe(strategy),
+  );
 
   useEffect(() => {
+    if (chartTimeframe) {
+      setTimeframe(chartTimeframe);
+      return;
+    }
     setTimeframe(resolveStrategyPrimaryTimeframe(strategy));
-  }, [strategy, market]);
+  }, [strategy, market, chartTimeframe]);
 
   const indicators = useMemo(
     () => buildVirtualTradingChartIndicators(strategy, getParams, getVisualConfig),
diff --git a/frontend/src/components/virtual/VirtualTargetCardFoot.tsx b/frontend/src/components/virtual/VirtualTargetCardFoot.tsx
new file mode 100644
index 0000000..b750f2b
--- /dev/null
+++ b/frontend/src/components/virtual/VirtualTargetCardFoot.tsx
@@ -0,0 +1,62 @@
+import React from 'react';
+import type { StrategyDto } from '../../utils/backendApi';
+import type { VirtualIndicatorSnapshot } from '../../hooks/useVirtualIndicatorSnapshots';
+import { formatUpdatedTime } from '../../utils/virtualSignalMetrics';
+import { STRATEGY_CANDLE_TYPE_OPTIONS } from '../../utils/strategyStartNodes';
+
+interface Props {
+  snapshot: VirtualIndicatorSnapshot | undefined;
+  strategies: StrategyDto[];
+  strategyId: number | null;
+  globalStrategyId: number | null;
+  candleType: string;
+  onStrategyChange?: (strategyId: number | null) => void;
+  onCandleTypeChange?: (candleType: string) => void;
+}
+
+/** 카드 하단 — 갱신 시각(좌) · 전략·시간봉 드롭다운(우) */
+const VirtualTargetCardFoot: React.FC<Props> = ({
+  snapshot,
+  strategies,
+  strategyId,
+  globalStrategyId,
+  candleType,
+  onStrategyChange,
+  onCandleTypeChange,
+}) => (
+  <div className="vtd-card-foot">
+    <span className="vtd-card-updated">갱신 {formatUpdatedTime(snapshot?.updatedAt)}</span>
+    <div className="vtd-card-foot-controls" onClick={e => e.stopPropagation()}>
+      <label className="vtd-card-foot-field">
+        <select
+          className="vtd-card-foot-select"
+          aria-label="투자전략"
+          value={strategyId ?? globalStrategyId ?? ''}
+          onChange={e => {
+            const v = e.target.value;
+            onStrategyChange?.(v ? Number(v) : null);
+          }}
+        >
+          <option value="">— 선택 —</option>
+          {strategies.map(s => (
+            <option key={s.id} value={s.id}>{s.name}</option>
+          ))}
+        </select>
+      </label>
+      <label className="vtd-card-foot-field">
+        <select
+          className="vtd-card-foot-select vtd-card-foot-select--tf"
+          aria-label="시간봉"
+          value={candleType}
+          onChange={e => onCandleTypeChange?.(e.target.value)}
+        >
+          {STRATEGY_CANDLE_TYPE_OPTIONS.map(o => (
+            <option key={o.value} value={o.value}>{o.label}</option>
+          ))}
+        </select>
+      </label>
+    </div>
+  </div>
+);
+
+export default VirtualTargetCardFoot;
diff --git a/frontend/src/components/virtual/VirtualTargetFocusView.tsx b/frontend/src/components/virtual/VirtualTargetFocusView.tsx
index b64e460..c800eb1 100644
--- a/frontend/src/components/virtual/VirtualTargetFocusView.tsx
+++ b/frontend/src/components/virtual/VirtualTargetFocusView.tsx
@@ -12,6 +12,10 @@ import VirtualLiveBadge from './VirtualLiveBadge';
 import VirtualTargetQuote from './VirtualTargetQuote';
 import VirtualTargetCardChart from './VirtualTargetCardChart';
 import VirtualTargetSignalPanel from './VirtualTargetSignalPanel';
+import VirtualTargetCardFoot from './VirtualTargetCardFoot';
+import { candleTypeToTimeframe } from '../../utils/strategyToChartIndicators';
+import { normalizeStartCandleType } from '../../utils/strategyStartNodes';
+import type { Timeframe } from '../../types';
 
 interface Props {
   market: string;
@@ -20,6 +24,8 @@ interface Props {
   strategyId: number | null;
   globalStrategyId: number | null;
   onStrategyChange?: (strategyId: number | null) => void;
+  candleType: string;
+  onCandleTypeChange?: (candleType: string) => void;
   snapshot: VirtualIndicatorSnapshot | undefined;
   running: boolean;
   liveStatus?: VirtualLiveStatus;
@@ -41,6 +47,8 @@ const VirtualTargetFocusView: React.FC<Props> = ({
   strategyId,
   globalStrategyId,
   onStrategyChange,
+  candleType,
+  onCandleTypeChange,
   snapshot,
   running,
   liveStatus = 'idle',
@@ -55,7 +63,6 @@ const VirtualTargetFocusView: React.FC<Props> = ({
 }) => {
   const ko = getKoreanName(market);
   const sym = market.replace(/^KRW-/, '');
-  const tf = snapshot?.timeframe ?? '—';
 
   const receiveSignal = useMemo(() => {
     if (!running) return null;
@@ -63,6 +70,8 @@ const VirtualTargetFocusView: React.FC<Props> = ({
   }, [running, lastTickAt, snapshot?.updatedAt]);
   const receiving = useLiveReceiveFlash(receiveSignal, running);
   const highlightReceiving = chartLiveReceiveHighlight && receiving;
+  const evalCandleType = normalizeStartCandleType(candleType);
+  const chartTimeframe = candleTypeToTimeframe(evalCandleType) as Timeframe;
 
   return (
     <div className={`vtd-focus-wrap${highlightReceiving ? ' vtd-focus-wrap--receiving' : ''}`}>
@@ -72,23 +81,6 @@ const VirtualTargetFocusView: React.FC<Props> = ({
             <span className="vtd-card-ko">{ko}</span>
             <span className="vtd-card-sym">{sym}</span>
           </div>
-          <label className="vtd-card-strategy-field" onClick={e => e.stopPropagation()}>
-            <select
-              className="vtd-card-strategy-select"
-              aria-label="투자전략"
-              value={strategyId ?? globalStrategyId ?? ''}
-              onChange={e => {
-                const v = e.target.value;
-                onStrategyChange?.(v ? Number(v) : null);
-              }}
-            >
-              <option value="">— 선택 —</option>
-              {strategies.map(s => (
-                <option key={s.id} value={s.id}>{s.name}</option>
-              ))}
-            </select>
-          </label>
-          <span className="vtd-card-tf">시간봉 {tf}</span>
           {running && <VirtualLiveBadge status={liveStatus} receiving={receiving} />}
         </div>
         <button
@@ -123,6 +115,7 @@ const VirtualTargetFocusView: React.FC<Props> = ({
               chartRealtimeSource={chartRealtimeSource}
               chartSeriesPriceLabels={chartSeriesPriceLabels}
               fillHeight
+              chartTimeframe={chartTimeframe}
             />
           </div>
         </section>
@@ -137,6 +130,16 @@ const VirtualTargetFocusView: React.FC<Props> = ({
           </div>
         </section>
       </div>
+
+      <VirtualTargetCardFoot
+        snapshot={snapshot}
+        strategies={strategies}
+        strategyId={strategyId}
+        globalStrategyId={globalStrategyId}
+        candleType={evalCandleType}
+        onStrategyChange={onStrategyChange}
+        onCandleTypeChange={onCandleTypeChange}
+      />
     </div>
   );
 };
diff --git a/frontend/src/components/virtual/VirtualTargetGrid.tsx b/frontend/src/components/virtual/VirtualTargetGrid.tsx
index fd3fafc..30ae9cf 100644
--- a/frontend/src/components/virtual/VirtualTargetGrid.tsx
+++ b/frontend/src/components/virtual/VirtualTargetGrid.tsx
@@ -4,7 +4,12 @@ import VirtualTargetFocusView from './VirtualTargetFocusView';
 import type { StrategyDto } from '../../utils/backendApi';
 import type { Theme } from '../../types';
 import type { ChartRealtimeSource } from '../../hooks/useChartRealtimeData';
-import type { VirtualTargetItem, VirtualCardViewMode, VirtualSessionConfig } from '../../utils/virtualTradingStorage';
+import {
+  type VirtualTargetItem,
+  type VirtualCardViewMode,
+  type VirtualSessionConfig,
+  resolveTargetCandleType,
+} from '../../utils/virtualTradingStorage';
 import type { VirtualLiveStatus } from '../../hooks/useVirtualTargetLiveStatus';
 import type { VirtualIndicatorSnapshot } from '../../hooks/useVirtualIndicatorSnapshots';
 import type { TickerData } from '../../hooks/useMarketTicker';
@@ -15,6 +20,7 @@ interface Props {
   snapshots: Record<string, VirtualIndicatorSnapshot>;
   session: Pick<VirtualSessionConfig, 'globalStrategyId' | 'executionType' | 'positionMode' | 'running'>;
   onTargetStrategyChange: (market: string, strategyId: number | null) => void;
+  onTargetCandleTypeChange: (market: string, candleType: string) => void;
   liveStatusByMarket?: Record<string, VirtualLiveStatus>;
   lastTickAtByMarket?: Record<string, number>;
   selectedMarket?: string;
@@ -32,6 +38,7 @@ interface Props {
 const VirtualTargetGrid: React.FC<Props> = ({
   targets, strategies, snapshots, session,
   onTargetStrategyChange,
+  onTargetCandleTypeChange,
   liveStatusByMarket = {}, lastTickAtByMarket = {}, selectedMarket,
   onSelectMarket,
   theme = 'dark',
@@ -109,6 +116,8 @@ const VirtualTargetGrid: React.FC<Props> = ({
           strategyId={focusTarget.strategyId}
           globalStrategyId={session.globalStrategyId}
           onStrategyChange={id => onTargetStrategyChange(focusTarget.market, id)}
+          candleType={resolveTargetCandleType(focusTarget, snapshots[focusTarget.market]?.timeframe)}
+          onCandleTypeChange={ct => onTargetCandleTypeChange(focusTarget.market, ct)}
           snapshot={snapshots[focusTarget.market]}
           running={session.running}
           liveStatus={liveStatusByMarket[focusTarget.market] ?? (session.running ? 'connecting' : 'idle')}
@@ -134,6 +143,8 @@ const VirtualTargetGrid: React.FC<Props> = ({
                 strategyId={t.strategyId}
                 globalStrategyId={session.globalStrategyId}
                 onStrategyChange={id => onTargetStrategyChange(t.market, id)}
+                candleType={resolveTargetCandleType(t, snapshots[t.market]?.timeframe)}
+                onCandleTypeChange={ct => onTargetCandleTypeChange(t.market, ct)}
                 snapshot={snapshots[t.market]}
                 running={session.running}
                 liveStatus={liveStatusByMarket[t.market] ?? (session.running ? 'connecting' : 'idle')}
diff --git a/frontend/src/components/virtual/VirtualTargetSignalPanel.tsx b/frontend/src/components/virtual/VirtualTargetSignalPanel.tsx
index 78e8717..65fbeab 100644
--- a/frontend/src/components/virtual/VirtualTargetSignalPanel.tsx
+++ b/frontend/src/components/virtual/VirtualTargetSignalPanel.tsx
@@ -3,7 +3,6 @@ import type { VirtualIndicatorSnapshot } from '../../hooks/useVirtualIndicatorSn
 import {
   buildConditionMetrics,
   computeMatchRate,
-  formatUpdatedTime,
   getTrafficLightState,
 } from '../../utils/virtualSignalMetrics';
 import VirtualSignalEqualizer from './VirtualSignalEqualizer';
@@ -67,10 +66,6 @@ const VirtualTargetSignalPanel: React.FC<Props> = ({
           <VirtualIndicatorCompareTable metrics={metrics} />
         </div>
       )}
-      <div className="vtd-card-foot">
-        <span className="vtd-card-updated">갱신 {formatUpdatedTime(snapshot?.updatedAt)}</span>
-        <span className="vtd-card-match-summary">매매조건 일치율 {matchRate}%</span>
-      </div>
     </div>
   );
 };
diff --git a/frontend/src/styles/virtualTradingDashboard.css b/frontend/src/styles/virtualTradingDashboard.css
index 16b8b76..84ec100 100644
--- a/frontend/src/styles/virtualTradingDashboard.css
+++ b/frontend/src/styles/virtualTradingDashboard.css
@@ -1431,6 +1431,37 @@
   color: var(--accent, #3f7ef5);
 }
 
+.vtd-card-foot-controls {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 6px 8px;
+  min-width: 0;
+  max-width: 78%;
+}
+
+.vtd-card-foot-field {
+  display: flex;
+  min-width: 0;
+}
+
+.vtd-card-foot-select {
+  min-width: 100px;
+  max-width: 140px;
+  padding: 4px 8px;
+  border-radius: 8px;
+  border: 1px solid var(--se-border);
+  background: var(--se-panel-card-bg);
+  color: var(--se-text);
+  font-size: 11px;
+}
+
+.vtd-card-foot-select--tf {
+  min-width: 72px;
+  max-width: 96px;
+}
+
 .vtd-sig-panel-title {
   font-size: 10px;
   font-weight: 800;
diff --git a/frontend/src/utils/compositeIndicators.ts b/frontend/src/utils/compositeIndicators.ts
index d237023..ec27186 100644
--- a/frontend/src/utils/compositeIndicators.ts
+++ b/frontend/src/utils/compositeIndicators.ts
@@ -1,6 +1,7 @@
 /** 복합지표 — 동일 지표 2개(서로 다른 기간) 간 교차·비교 조건 */
 import type { ConditionDSL } from './strategyTypes';
 import { DEFAULT_START_CANDLE, normalizeStartCandleType } from './strategyStartNodes';
+import { migratePriceExtremeCondition } from './priceExtremeIndicators';
 
 export interface CompositePeriodDef {
   rsiPeriod: number;
@@ -21,8 +22,40 @@ export interface CompositeIndicatorItem {
   desc: string;
 }
 
-/** 복합지표 팔레트 — 동일 지표 타입 2인스턴스 교차 */
+/** 돈치안 채널 — 단기·장기 고가/저가선 비교 */
+export function isDonchianComposite(ind: string): boolean {
+  return ind === 'DONCHIAN';
+}
+
+/** @deprecated DONCHIAN 전용 — isDonchianComposite 사용 */
+export function isPriceExtremeComposite(ind: string): boolean {
+  return isDonchianComposite(ind);
+}
+
+export function donchianUpperField(period: number): string {
+  return `DC_UPPER_${period}`;
+}
+
+export function donchianLowerField(period: number): string {
+  return `DC_LOWER_${period}`;
+}
+
+export function donchianMiddleField(period: number): string {
+  return `DC_MIDDLE_${period}`;
+}
+
+/** DC_UPPER_9 / DC_LOWER_20 등에서 기간 추출 */
+export function parseDonchianPeriod(field?: string): number | null {
+  if (!field) return null;
+  const m = field.match(/^DC_(?:UPPER|LOWER|MIDDLE)_(\d+)$/);
+  if (!m) return null;
+  const n = parseInt(m[1], 10);
+  return Number.isFinite(n) && n > 0 ? n : null;
+}
+
+/** 복합지표 팔레트 */
 export const COMPOSITE_INDICATOR_ITEMS: CompositeIndicatorItem[] = [
+  { value: 'DONCHIAN', label: '돈치안 채널', desc: '단기·장기 고가/저가 채널 비교 (9·20일)' },
   { value: 'RSI', label: 'RSI', desc: 'RSI 기간 교차' },
   { value: 'CCI', label: 'CCI', desc: 'CCI 기간 교차' },
   { value: 'ADX', label: 'ADX', desc: 'ADX 기간 교차' },
@@ -36,6 +69,8 @@ export const COMPOSITE_INDICATOR_ITEMS: CompositeIndicatorItem[] = [
 
 export function getCompositeDefaultPeriods(ind: string, def: CompositePeriodDef): { short: number; long: number } {
   switch (ind) {
+    case 'DONCHIAN':
+      return { short: 9, long: 20 };
     case 'RSI': return { short: def.rsiPeriod, long: Math.max(def.rsiPeriod * 2, 20) };
     case 'CCI': return { short: def.cciPeriod, long: Math.max(def.cciPeriod * 2, 26) };
     case 'ADX': return { short: def.adxPeriod, long: Math.max(def.adxPeriod * 2, 28) };
@@ -52,6 +87,8 @@ export function getCompositeDefaultPeriods(ind: string, def: CompositePeriodDef)
 
 export function compositeValueField(ind: string, period: number): string {
   switch (ind) {
+    case 'DONCHIAN':
+      return donchianUpperField(period);
     case 'RSI': return `RSI_VALUE_${period}`;
     case 'CCI': return `CCI_VALUE_${period}`;
     case 'ADX': return `ADX_VALUE_${period}`;
@@ -86,6 +123,9 @@ const COMPOSITE_VALUE_PREFIX: Record<string, string> = {
 /** 복합지표용 값 라인 필드(CCI_VALUE_9 등)인지 — K_100 임계값은 false */
 export function isCompositeValueField(ind: string, field?: string): boolean {
   if (!field || isThresholdField(field)) return false;
+  if (isDonchianComposite(ind)) {
+    return parseDonchianPeriod(field) != null;
+  }
   if (ind === 'DISPARITY') {
     return field.startsWith('DISPARITY') && field.length > 'DISPARITY'.length
       && /^\d+$/.test(field.slice('DISPARITY'.length));
@@ -97,6 +137,9 @@ export function isCompositeValueField(ind: string, field?: string): boolean {
 
 export function parsePeriodFromCompositeField(ind: string, field?: string): number | null {
   if (!field || isThresholdField(field)) return null;
+  if (isDonchianComposite(ind)) {
+    return parseDonchianPeriod(field);
+  }
   if (ind === 'DISPARITY' && field.startsWith('DISPARITY')) {
     const n = parseInt(field.slice('DISPARITY'.length), 10);
     return Number.isFinite(n) && n > 0 ? n : null;
@@ -107,8 +150,32 @@ export function parsePeriodFromCompositeField(ind: string, field?: string): numb
   return Number.isFinite(n) && n > 0 ? n : null;
 }
 
+/** 돈치안 — 단기·장기 고가/저가선 비교 */
+export function syncDonchianCompositeFields(cond: ConditionDSL): ConditionDSL {
+  const leftP = cond.leftPeriod ?? 9;
+  const rightP = cond.rightPeriod ?? 20;
+  const leftCt = normalizeStartCandleType(cond.leftCandleType ?? DEFAULT_START_CANDLE);
+  const rightCt = normalizeStartCandleType(cond.rightCandleType ?? DEFAULT_START_CANDLE);
+  const defaultBand = (period: number) => donchianUpperField(period);
+
+  return {
+    ...cond,
+    composite: true,
+    leftPeriod: leftP,
+    rightPeriod: rightP,
+    leftField: cond.leftField ?? defaultBand(leftP),
+    rightField: cond.rightField ?? defaultBand(rightP),
+    leftCandleType: leftCt,
+    rightCandleType: rightCt,
+    period: undefined,
+  };
+}
+
 export function syncCompositeFields(cond: ConditionDSL): ConditionDSL {
   if (!cond.composite) return cond;
+  if (isDonchianComposite(cond.indicatorType)) {
+    return syncDonchianCompositeFields(cond);
+  }
   const leftP = cond.leftPeriod
     ?? parsePeriodFromCompositeField(cond.indicatorType, cond.leftField)
     ?? undefined;
@@ -139,6 +206,9 @@ export function syncCompositeFields(cond: ConditionDSL): ConditionDSL {
 }
 
 export function normalizeCompositeCondition(cond: ConditionDSL): ConditionDSL {
+  const migrated = migratePriceExtremeCondition(cond);
+  if (migrated !== cond) return migrated;
+
   if (cond.composite) {
     if (isThresholdField(cond.leftField) || isThresholdField(cond.rightField)) {
       return {
@@ -151,8 +221,21 @@ export function normalizeCompositeCondition(cond: ConditionDSL): ConditionDSL {
     return syncCompositeFields(cond);
   }
   const ind = cond.indicatorType;
+  if (parseDonchianPeriod(cond.leftField) != null && parseDonchianPeriod(cond.rightField) != null) {
+    const leftP = parseDonchianPeriod(cond.leftField)!;
+    const rightP = parseDonchianPeriod(cond.rightField)!;
+    if (leftP !== rightP) {
+      return syncDonchianCompositeFields({
+        ...cond,
+        composite: true,
+        indicatorType: 'DONCHIAN',
+        leftPeriod: leftP,
+        rightPeriod: rightP,
+      });
+    }
+  }
   if (!isCompositeValueField(ind, cond.leftField) || !isCompositeValueField(ind, cond.rightField)) {
-    return cond;
+    return migratePriceExtremeCondition(cond);
   }
   const leftP = parsePeriodFromCompositeField(ind, cond.leftField);
   const rightP = parsePeriodFromCompositeField(ind, cond.rightField);
@@ -164,7 +247,7 @@ export function normalizeCompositeCondition(cond: ConditionDSL): ConditionDSL {
       rightPeriod: rightP,
     });
   }
-  return cond;
+  return migratePriceExtremeCondition(cond);
 }
 
 export function makeCompositeCondition(
@@ -173,6 +256,18 @@ export function makeCompositeCondition(
   def: CompositePeriodDef,
 ): ConditionDSL {
   const { short, long } = getCompositeDefaultPeriods(ind, def);
+  if (isDonchianComposite(ind)) {
+    return syncDonchianCompositeFields({
+      indicatorType: ind,
+      conditionType: signalType === 'buy' ? 'CROSS_UP' : 'CROSS_DOWN',
+      composite: true,
+      leftPeriod: short,
+      rightPeriod: long,
+      leftCandleType: DEFAULT_START_CANDLE,
+      rightCandleType: DEFAULT_START_CANDLE,
+      candleRange: 1,
+    });
+  }
   return syncCompositeFields({
     indicatorType: ind,
     conditionType: signalType === 'buy' ? 'CROSS_UP' : 'CROSS_DOWN',
@@ -185,6 +280,16 @@ export function makeCompositeCondition(
   });
 }
 
+/** 돈치안 복합 — 조건대상 드롭다운 옵션 */
+export function getDonchianFieldOpts(
+  allPeriods: number[],
+): { value: string; label: string }[] {
+  return [
+    ...allPeriods.map(p => ({ value: donchianUpperField(p), label: `${p}일 최고가선` })),
+    ...allPeriods.map(p => ({ value: donchianLowerField(p), label: `${p}일 최저가선` })),
+  ];
+}
+
 export function compositePeriodLabel(ind: string, def: CompositePeriodDef): string {
   const { short, long } = getCompositeDefaultPeriods(ind, def);
   return `${short} / ${long}`;
@@ -192,17 +297,24 @@ export function compositePeriodLabel(ind: string, def: CompositePeriodDef): stri
 
 export function compositeDisplayName(ind: string): string {
   const item = COMPOSITE_INDICATOR_ITEMS.find(i => i.value === ind);
+  if (ind === 'DONCHIAN') return '돈치안 채널 (9·20일)';
   if (item) return `${item.label} + ${item.label}`;
   return `${ind} + ${ind}`;
 }
 
 export function compositeElementLabel(ind: string, slot: 1 | 2): string {
+  if (ind === 'DONCHIAN') {
+    return slot === 1 ? '채널 단기' : '채널 장기';
+  }
   const item = COMPOSITE_INDICATOR_ITEMS.find(i => i.value === ind);
   const name = item?.label ?? ind;
   return `${name} ${slot}`;
 }
 
-/** 복합지표 조건대상 라벨 — 예: CCI 1 라인(9일) */
+/** 복합지표 조건대상 라벨 */
 export function compositeFieldLabel(ind: string, slot: 1 | 2, period: number): string {
+  if (ind === 'DONCHIAN') {
+    return `${period}일 ${slot === 1 ? '단기' : '장기'} 고가선`;
+  }
   return `${compositeElementLabel(ind, slot)} 라인(${period}일)`;
 }
diff --git a/frontend/src/utils/conditionPeriods.ts b/frontend/src/utils/conditionPeriods.ts
index 660ed5e..2ba1251 100644
--- a/frontend/src/utils/conditionPeriods.ts
+++ b/frontend/src/utils/conditionPeriods.ts
@@ -4,11 +4,20 @@ import {
   compositeFieldLabel,
   compositeValueField,
   getCompositeDefaultPeriods,
+  getDonchianFieldOpts,
+  isDonchianComposite,
   isThresholdField,
+  parseDonchianPeriod,
   parsePeriodFromCompositeField,
   syncCompositeFields,
   type CompositePeriodDef,
 } from './compositeIndicators';
+import {
+  isPriceExtremeIndicator,
+  migratePriceExtremeCondition,
+  parsePriorExtremePeriod,
+  syncPriceExtremeSimpleFields,
+} from './priceExtremeIndicators';
 import { DEFAULT_START_CANDLE, normalizeStartCandleType } from './strategyStartNodes';
 
 export interface IndicatorPeriodDef {
@@ -36,6 +45,9 @@ const VALUE_FIELD_PREFIX: Record<string, string> = {
 
 export function getDefaultIndicatorPeriod(indicatorType: string, def: IndicatorPeriodDef): number {
   switch (indicatorType) {
+    case 'NEW_HIGH':
+    case 'NEW_LOW':
+      return 9;
     case 'RSI': return def.rsiPeriod;
     case 'CCI': return def.cciPeriod;
     case 'ADX': return def.adxPeriod;
@@ -59,6 +71,12 @@ function parseFieldPeriod(field?: string): number | null {
 
 /** 조건 노드의 RSI 등 값(좌측) 기간 */
 export function getConditionValuePeriod(cond: ConditionDSL, def: IndicatorPeriodDef): number {
+  if (isPriceExtremeIndicator(cond.indicatorType)) {
+    if (cond.period && cond.period > 0) return cond.period;
+    const fromRight = parsePriorExtremePeriod(cond.rightField);
+    if (fromRight) return fromRight;
+    return getDefaultIndicatorPeriod(cond.indicatorType, def);
+  }
   if (cond.composite) {
     if (cond.leftPeriod && cond.leftPeriod > 0) return cond.leftPeriod;
     const fromField = parsePeriodFromCompositeField(cond.indicatorType, cond.leftField);
@@ -100,6 +118,7 @@ export function isValuePeriodFieldStored(indicatorType: string, field?: string):
 }
 
 export function usesValuePeriodField(cond: ConditionDSL): boolean {
+  if (isPriceExtremeIndicator(cond.indicatorType)) return true;
   if (cond.composite) return true;
   const prefix = VALUE_FIELD_PREFIX[cond.indicatorType];
   if (!prefix) return false;
@@ -133,6 +152,9 @@ export function setConditionValuePeriod(
   _def: IndicatorPeriodDef,
 ): ConditionDSL {
   const p = Math.max(1, Math.min(500, Math.round(period)));
+  if (isPriceExtremeIndicator(cond.indicatorType)) {
+    return syncPriceExtremeSimpleFields({ ...cond, period: p });
+  }
   if (cond.composite) {
     return syncCompositeFields({ ...cond, composite: true, leftPeriod: p });
   }
@@ -170,6 +192,10 @@ export function initConditionPeriods(
   condition: ConditionDSL,
   def: IndicatorPeriodDef,
 ): ConditionDSL {
+  if (isPriceExtremeIndicator(indicatorType)) {
+    const period = condition.period ?? getDefaultIndicatorPeriod(indicatorType, def);
+    return syncPriceExtremeSimpleFields({ ...condition, period });
+  }
   if (condition.composite) return condition;
   const prefix = VALUE_FIELD_PREFIX[indicatorType];
   if (!prefix) return condition;
@@ -191,9 +217,19 @@ const COMMON_PERIODS = [5, 7, 9, 10, 12, 13, 14, 20, 21, 26, 28, 50, 60, 120];
 
 export function getPeriodPresetOptions(indicatorType: string, def: IndicatorPeriodDef): number[] {
   const base = getDefaultIndicatorPeriod(indicatorType, def);
+  if (isPriceExtremeIndicator(indicatorType)) {
+    return [...new Set([base, 5, 9, 10, 20, 55, ...COMMON_PERIODS])].sort((a, b) => a - b);
+  }
   return [...new Set([base, ...COMMON_PERIODS])].sort((a, b) => a - b);
 }
 
+export function getPeriodSettingsLabel(cond: ConditionDSL): string | null {
+  if (isPriceExtremeIndicator(cond.indicatorType)) {
+    return cond.indicatorType === 'NEW_LOW' ? '신저가 기간 (봉)' : '신고가 기간 (봉)';
+  }
+  return null;
+}
+
 /** 복합지표 요소1(단기)·요소2(장기) 기간 프리셋 */
 export function getCompositePeriodPresetOptions(
   indicatorType: string,
@@ -242,6 +278,18 @@ export function getCompositeFieldOpts(
     : getConditionRightPeriod(cond, def);
   const presets = getCompositePeriodPresetOptions(indicatorType, def, side);
   const periods = [...new Set([...presets, current])].sort((a, b) => a - b);
+
+  if (isDonchianComposite(indicatorType)) {
+    const opts = getDonchianFieldOpts(periods);
+    const cur = slot === 1 ? cond.leftField : cond.rightField;
+    if (cur && !opts.some(o => o.value === cur)) {
+      const p = parseDonchianPeriod(cur);
+      const label = p != null ? compositeFieldLabel(indicatorType, slot, p) : cur;
+      return [{ value: cur, label }, ...opts];
+    }
+    return opts;
+  }
+
   return periods.map(p => ({
     value: compositeValueField(indicatorType, p),
     label: compositeFieldLabel(indicatorType, slot, p),
diff --git a/frontend/src/utils/indicatorRegistry.ts b/frontend/src/utils/indicatorRegistry.ts
index 7f0adb8..8e787eb 100644
--- a/frontend/src/utils/indicatorRegistry.ts
+++ b/frontend/src/utils/indicatorRegistry.ts
@@ -384,8 +384,18 @@ export function getIndicatorDef(type: string): IndicatorDef | undefined {
   return INDICATOR_REGISTRY.find(d => d.type === type);
 }
 
+const DSL_DISPLAY_ALIASES: Record<string, { koreanName: string; shortName: string }> = {
+  NEW_HIGH: { koreanName: '신고가', shortName: 'NH' },
+  NEW_LOW: { koreanName: '신저가', shortName: 'NL' },
+  DONCHIAN: { koreanName: '돈치안채널', shortName: 'DC' },
+};
+
 /** 가상투자·조건 목록 — 한글명 (영문약어) 예: 상품채널지수 (CCI) */
 export function formatIndicatorDisplayLabel(indicatorType: string): string {
+  const alias = DSL_DISPLAY_ALIASES[indicatorType];
+  if (alias) {
+    return `${alias.koreanName} (${alias.shortName})`;
+  }
   const def = getIndicatorDef(indicatorType);
   const abbr = def?.shortName ?? indicatorType;
   const ko = def?.koreanName ?? abbr;
diff --git a/frontend/src/utils/priceExtremeIndicators.ts b/frontend/src/utils/priceExtremeIndicators.ts
new file mode 100644
index 0000000..f046bb5
--- /dev/null
+++ b/frontend/src/utils/priceExtremeIndicators.ts
@@ -0,0 +1,111 @@
+/** 신고가·신저가 — 단일(보조) 지표: 종가/고가 vs 직전 N봉 최고·최저 */
+import type { ConditionDSL } from './strategyTypes';
+import { parseDonchianPeriod } from './compositeIndicators';
+
+export function isPriceExtremeIndicator(ind?: string): boolean {
+  return ind === 'NEW_HIGH' || ind === 'NEW_LOW';
+}
+
+export function nhPriorField(period: number): string {
+  return `NH_PRIOR_${Math.max(1, Math.round(period))}`;
+}
+
+export function nlPriorField(period: number): string {
+  return `NL_PRIOR_${Math.max(1, Math.round(period))}`;
+}
+
+export function parsePriorExtremePeriod(field?: string): number | null {
+  if (!field) return null;
+  const m = field.match(/^(?:NH|NL)_PRIOR_(\d+)$/);
+  if (m) {
+    const n = parseInt(m[1], 10);
+    return Number.isFinite(n) && n > 0 ? n : null;
+  }
+  return parseDonchianPeriod(field);
+}
+
+export function priorExtremeField(ind: string, period: number): string {
+  return ind === 'NEW_LOW' ? nlPriorField(period) : nhPriorField(period);
+}
+
+/** 단일 지표 — 기간에 맞춰 직전 N봉 신고가/신저가선 필드 동기화 */
+export function syncPriceExtremeSimpleFields(cond: ConditionDSL): ConditionDSL {
+  if (!isPriceExtremeIndicator(cond.indicatorType)) return cond;
+  const period = cond.period
+    ?? parsePriorExtremePeriod(cond.rightField)
+    ?? parsePriorExtremePeriod(cond.leftField)
+    ?? 9;
+  const p = Math.max(1, Math.min(500, Math.round(period)));
+  const band = priorExtremeField(cond.indicatorType, p);
+  const priceFields = new Set(['CLOSE_PRICE', 'HIGH_PRICE', 'LOW_PRICE', 'OPEN_PRICE']);
+  let leftField = cond.leftField;
+  let rightField = cond.rightField;
+  if (cond.indicatorType === 'NEW_HIGH') {
+    leftField = leftField && priceFields.has(leftField) ? leftField : 'CLOSE_PRICE';
+    rightField = band;
+  } else {
+    leftField = leftField && priceFields.has(leftField) ? leftField : 'CLOSE_PRICE';
+    rightField = band;
+  }
+  return {
+    ...cond,
+    composite: false,
+    period: p,
+    leftPeriod: undefined,
+    rightPeriod: undefined,
+    leftCandleType: undefined,
+    rightCandleType: undefined,
+    leftField,
+    rightField,
+  };
+}
+
+/** 저장 DSL — 복합지표 승격·DC_UPPER_N 필드를 단일 신고가/신저가로 정규화 */
+export function migratePriceExtremeCondition(cond: ConditionDSL): ConditionDSL {
+  const ind = cond.indicatorType;
+  if (!isPriceExtremeIndicator(ind)) return cond;
+
+  if (cond.composite && isPriceExtremeIndicator(ind)) {
+    const period = cond.leftPeriod ?? cond.rightPeriod ?? 9;
+    const priceFields = new Set(['CLOSE_PRICE', 'HIGH_PRICE', 'LOW_PRICE', 'OPEN_PRICE']);
+    const leftField = cond.leftField && priceFields.has(cond.leftField)
+      ? cond.leftField
+      : 'CLOSE_PRICE';
+    return syncPriceExtremeSimpleFields({
+      ...cond,
+      composite: false,
+      leftField,
+      period,
+      conditionType: cond.conditionType === 'CROSS_UP' ? 'GTE'
+        : cond.conditionType === 'CROSS_DOWN' ? 'LTE'
+          : cond.conditionType,
+    });
+  }
+
+  if (!isPriceExtremeIndicator(ind)) return cond;
+
+  const fromRight = parsePriorExtremePeriod(cond.rightField);
+  const fromLeft = parsePriorExtremePeriod(cond.leftField);
+  const period = cond.period ?? fromRight ?? fromLeft ?? 9;
+  let migrated = syncPriceExtremeSimpleFields({ ...cond, period });
+
+  if (migrated.rightField?.startsWith('DC_UPPER_') || migrated.rightField?.startsWith('DC_LOWER_')) {
+    migrated = syncPriceExtremeSimpleFields({
+      ...migrated,
+      period: parseDonchianPeriod(migrated.rightField) ?? period,
+    });
+  }
+
+  if (migrated.conditionType === 'CROSS_UP' && ind === 'NEW_HIGH') {
+    migrated = { ...migrated, conditionType: 'GTE' };
+  }
+  if (migrated.conditionType === 'CROSS_DOWN' && ind === 'NEW_LOW') {
+    migrated = { ...migrated, conditionType: 'LTE' };
+  }
+
+  return migrated;
+}
+
+export function priceExtremePeriodLabel(ind: string, period: number): string {
+  return ind === 'NEW_LOW' ? `${period}일 신저가선` : `${period}일 신고가선`;
+}
diff --git a/frontend/src/utils/strategyEditorShared.tsx b/frontend/src/utils/strategyEditorShared.tsx
index 22a3f0c..0ee8e30 100644
--- a/frontend/src/utils/strategyEditorShared.tsx
+++ b/frontend/src/utils/strategyEditorShared.tsx
@@ -9,9 +9,17 @@ import {
   compositeFieldLabel,
   makeCompositeCondition,
   normalizeCompositeCondition,
+  parseDonchianPeriod,
   parsePeriodFromCompositeField,
   syncCompositeFields,
 } from '../utils/compositeIndicators';
+import {
+  isPriceExtremeIndicator,
+  nhPriorField,
+  nlPriorField,
+  parsePriorExtremePeriod,
+  syncPriceExtremeSimpleFields,
+} from '../utils/priceExtremeIndicators';
 import ComboFieldSelect from '../components/strategyEditor/ComboFieldSelect';
 import {
   getCompositeFieldOpts,
@@ -177,6 +185,8 @@ export function buildDef(activeIndicators: IndicatorConfig[]): DefType {
     OBV:                  'OBV',
     BOLLINGER:            'BollingerBands',
     DONCHIAN:             'DonchianChannels',
+    NEW_HIGH:             'PriceExtreme',
+    NEW_LOW:              'PriceExtreme',
   };
 
   const extractThresh = (dslType: string): HLThresh => {
@@ -469,13 +479,35 @@ export const getFieldOpts = (
       { value:'HIGH_PRICE',  label:'고가' },
       { value:'LOW_PRICE',   label:'저가' },
     ]);
+    case 'NEW_HIGH': {
+      const p = cond?.period ?? 9;
+      const periods = [...new Set([p, 5, 9, 10, 20, 55])].sort((a, b) => a - b);
+      return condOpts([
+        { value: 'CLOSE_PRICE', label: '종가' },
+        { value: 'HIGH_PRICE', label: '고가' },
+        { value: 'OPEN_PRICE', label: '시가' },
+        ...periods.map(n => ({ value: nhPriorField(n), label: `${n}일 신고가선(직전 N봉)` })),
+      ]);
+    }
+    case 'NEW_LOW': {
+      const p = cond?.period ?? 9;
+      const periods = [...new Set([p, 5, 9, 10, 20, 55])].sort((a, b) => a - b);
+      return condOpts([
+        { value: 'CLOSE_PRICE', label: '종가' },
+        { value: 'LOW_PRICE', label: '저가' },
+        { value: 'OPEN_PRICE', label: '시가' },
+        ...periods.map(n => ({ value: nlPriorField(n), label: `${n}일 신저가선(직전 N봉)` })),
+      ]);
+    }
     case 'DONCHIAN': return condOpts([
+      { value:'DC_UPPER_9',   label:'상단(9일 최고가·신고가)' },
       { value:'DC_UPPER_10',  label:'상단(10일 최고가)' },
-      { value:'DC_UPPER_20',  label:'상단(20일 최고가)' },
+      { value:'DC_UPPER_20',  label:'상단(20일 최고가·신고가)' },
       { value:'DC_UPPER_55',  label:'상단(55일 최고가)' },
       { value:'DC_MIDDLE_20', label:'중심(20일)' },
+      { value:'DC_LOWER_9',   label:'하단(9일 최저가·신저가)' },
       { value:'DC_LOWER_10',  label:'하단(10일 최저가)' },
-      { value:'DC_LOWER_20',  label:'하단(20일 최저가)' },
+      { value:'DC_LOWER_20',  label:'하단(20일 최저가·신저가)' },
       { value:'DC_LOWER_55',  label:'하단(55일 최저가)' },
       { value:'CLOSE_PRICE',  label:'종가' },
       { value:'LOW_PRICE',    label:'저가' },
@@ -526,6 +558,8 @@ const getDefaultFields = (ind: string, signalType: 'buy'|'sell', DEF: DefType):
     DONCHIAN:        signalType === 'buy'
       ? { l:'CLOSE_PRICE', r:'DC_UPPER_20' }
       : { l:'CLOSE_PRICE', r:'DC_LOWER_20' },
+    NEW_HIGH:        { l:'CLOSE_PRICE', r: nhPriorField(9) },
+    NEW_LOW:         { l:'CLOSE_PRICE', r: nlPriorField(9) },
     ICHIMOKU:        { l:'CONVERSION_LINE',   r:'BASE_LINE'       },
   };
   return map[ind] ?? { l:'NONE', r:'NONE' };
@@ -569,6 +603,9 @@ const applyCondTypeDefaults = (cond: ConditionDSL, newCondType: string, DEF: Def
       updated.leftField = 'LAGGING_SPAN'; updated.rightField = 'CLOSE_PRICE';
     }
   }
+  if (isPriceExtremeIndicator(updated.indicatorType)) {
+    return syncPriceExtremeSimpleFields(updated);
+  }
   return updated;
 };
 
@@ -751,8 +788,12 @@ export const CondEditor: React.FC<CondEditorProps> = ({ cond, signalType, onChan
       OVERBOUGHT_200: 200, NEUTRAL_100: 100, OVERSOLD_50: 50,
       ZERO_LINE: 0,
     };
-    const upd: ConditionDSL = { ...normalized, rightField: v };
+    let upd: ConditionDSL = { ...normalized, rightField: v };
     if (thresholds[v] !== undefined) upd.targetValue = thresholds[v];
+    const priorP = parsePriorExtremePeriod(v);
+    if (priorP != null && isPriceExtremeIndicator(normalized.indicatorType)) {
+      upd = syncPriceExtremeSimpleFields({ ...upd, period: priorP });
+    }
     onChange(upd);
   };
 
@@ -769,7 +810,8 @@ export const CondEditor: React.FC<CondEditorProps> = ({ cond, signalType, onChan
     const periodPresetsRight = getCompositePeriodPresetOptions(normalized.indicatorType, def, 'right');
 
     const handleCompositeField = (side: 'left' | 'right', field: string) => {
-      const p = parsePeriodFromCompositeField(normalized.indicatorType, field);
+      const p = parseDonchianPeriod(field)
+        ?? parsePeriodFromCompositeField(normalized.indicatorType, field);
       if (p == null) return;
       if (side === 'left') {
         onChange(syncCompositeFields({ ...normalized, leftPeriod: p, leftField: field }));
@@ -1035,16 +1077,22 @@ export const makeNode = (
   }
   const def = getDefaultFields(value, signalType, DEF);
   const period = options?.period ?? getDefaultIndicatorPeriod(value, DEF);
+  let conditionType = signalType === 'buy' ? 'CROSS_UP' : 'CROSS_DOWN';
+  if (value === 'NEW_HIGH' && signalType === 'buy') conditionType = 'CROSS_UP';
+  if (value === 'NEW_LOW' && signalType === 'sell') conditionType = 'CROSS_DOWN';
   const baseCondition: ConditionDSL = {
     indicatorType: value,
-    conditionType: signalType === 'buy' ? 'CROSS_UP' : 'CROSS_DOWN',
+    conditionType,
     leftField: def.l,
     rightField: def.r,
     candleRange: 1,
     period,
   };
+  const condition = initConditionPeriods(value, baseCondition, DEF);
   return {
     id: genId(), type: 'CONDITION',
-    condition: initConditionPeriods(value, baseCondition, DEF),
+    condition: isPriceExtremeIndicator(value)
+      ? syncPriceExtremeSimpleFields(condition)
+      : condition,
   };
 };
diff --git a/frontend/src/utils/strategyPaletteStorage.ts b/frontend/src/utils/strategyPaletteStorage.ts
index d4903a3..8d56111 100644
--- a/frontend/src/utils/strategyPaletteStorage.ts
+++ b/frontend/src/utils/strategyPaletteStorage.ts
@@ -37,6 +37,8 @@ export const DEFAULT_AUXILIARY_ITEMS: Omit<PaletteItem, 'id' | 'kind'>[] = [
   { value: 'PSYCHOLOGICAL', label: '심리도', desc: 'Psychological', builtIn: true },
   { value: 'INVEST_PSYCHOLOGICAL', label: '투자심리도', desc: 'Invest PSY', builtIn: true },
   { value: 'VOLUME', label: '거래량', desc: 'Volume', builtIn: true },
+  { value: 'NEW_HIGH', label: '신고가', desc: '직전 N봉 최고가 돌파 — 종가/고가 vs N일 신고가선 (9·20일)', builtIn: true, period: 9 },
+  { value: 'NEW_LOW', label: '신저가', desc: '직전 N봉 최저가 이탈 — 종가/저가 vs N일 신저가선 (9·20일)', builtIn: true, period: 9 },
 ];
 
 export const DEFAULT_COMPOSITE_ITEMS: Omit<PaletteItem, 'id' | 'kind'>[] =
@@ -85,13 +87,36 @@ function parseStored(raw: string | null): PaletteItem[] | null {
   }
 }
 
+/** 복합지표 팔레트에서 단일 지표로 이전된 항목 제거 */
+const DEPRECATED_COMPOSITE_VALUES = new Set(['NEW_HIGH', 'NEW_LOW']);
+
+function mergeMissingBuiltIns(
+  stored: PaletteItem[],
+  kind: PaletteItemKind,
+  defaults: Omit<PaletteItem, 'id' | 'kind'>[],
+): PaletteItem[] {
+  let base = stored;
+  if (kind === 'composite') {
+    base = stored.filter(i => !DEPRECATED_COMPOSITE_VALUES.has(i.value));
+  }
+  const existing = new Set(base.map(i => i.value));
+  const added = defaults
+    .filter(d => !existing.has(d.value))
+    .map(d => ({
+      ...d,
+      id: builtinId(kind, d.value),
+      kind,
+    }));
+  return added.length > 0 ? [...base, ...added] : base;
+}
+
 export function loadPaletteItems(kind: PaletteItemKind): PaletteItem[] {
   const key = kind === 'auxiliary' ? STORAGE_AUX : STORAGE_COMP;
   const defaults = kind === 'auxiliary' ? DEFAULT_AUXILIARY_ITEMS : DEFAULT_COMPOSITE_ITEMS;
   try {
     const stored = parseStored(localStorage.getItem(key));
     if (stored && stored.length > 0) {
-      return stored.map(i => ({ ...i, kind }));
+      return mergeMissingBuiltIns(stored.map(i => ({ ...i, kind })), kind, defaults);
     }
   } catch { /* ignore */ }
   return seedItems(kind, defaults);
diff --git a/frontend/src/utils/strategyPresets.ts b/frontend/src/utils/strategyPresets.ts
index 8062e5d..bd219fe 100644
--- a/frontend/src/utils/strategyPresets.ts
+++ b/frontend/src/utils/strategyPresets.ts
@@ -1,5 +1,6 @@
 import type { LogicNode } from './strategyTypes';
 import { genId, type DefType } from './strategyEditorShared';
+import { nhPriorField, nlPriorField } from './priceExtremeIndicators';
 
 export type SimpleStrategyTemplate = {
   kind: 'simple';
@@ -10,6 +11,7 @@ export type SimpleStrategyTemplate = {
   cond: string;
   l: string;
   r: string;
+  period?: number;
 };
 
 export type CompositeStrategyTemplate = {
@@ -28,11 +30,19 @@ function condition(
   leftField: string,
   rightField: string,
   candleRange = 1,
+  period?: number,
 ): LogicNode {
   return {
     id: genId(),
     type: 'CONDITION',
-    condition: { indicatorType, conditionType, leftField, rightField, candleRange },
+    condition: {
+      indicatorType,
+      conditionType,
+      leftField,
+      rightField,
+      candleRange,
+      ...(period != null ? { period } : null),
+    },
   };
 }
 
@@ -50,6 +60,16 @@ function donchianBreakdownSell(period: number): LogicNode {
   return condition('DONCHIAN', 'CROSS_DOWN', 'CLOSE_PRICE', `DC_LOWER_${period}`);
 }
 
+/** N일 신고가 돌파 — 종가가 직전 N봉 최고가를 상향 돌파 */
+function newHighBreakoutBuy(period: number): LogicNode {
+  return condition('NEW_HIGH', 'CROSS_UP', 'CLOSE_PRICE', nhPriorField(period), 1, period);
+}
+
+/** N일 신저가 이탈 — 종가가 직전 N봉 최저가를 하향 이탈 */
+function newLowBreakdownSell(period: number): LogicNode {
+  return condition('NEW_LOW', 'CROSS_DOWN', 'CLOSE_PRICE', nlPriorField(period), 1, period);
+}
+
 /** 일목균형표 — 전환선(9일) / 기준선(26일) 골든·데드크로스 */
 function ichimokuTenkanKijunCross(signal: 'buy' | 'sell'): LogicNode {
   return condition(
@@ -99,6 +119,50 @@ export function getStrategyTemplates(def: DefType): StrategyTemplateDef[] {
     { kind: 'simple', ind: 'PSYCHOLOGICAL', cond: 'CROSS_UP', l: 'PSY_VALUE', r: 'OVERBOUGHT_75', signal: 'buy', label: '심리도 상향 돌파' },
     { kind: 'simple', ind: 'STOCHASTIC', cond: 'CROSS_UP', l: 'STOCH_K', r: 'STOCH_D', signal: 'buy', label: '스토캐스틱 골든크로스' },
     { kind: 'simple', ind: 'ADX', cond: 'CROSS_UP', l: 'ADX_VALUE', r: 'ADX_25', signal: 'buy', label: 'ADX 중앙선 상향 돌파' },
+    {
+      kind: 'simple',
+      ind: 'NEW_HIGH',
+      cond: 'CROSS_UP',
+      l: 'CLOSE_PRICE',
+      r: nhPriorField(9),
+      period: 9,
+      signal: 'buy',
+      label: '9일 신고가 돌파',
+      description: '종가가 직전 9봉 최고가 이상 — 단기 박스권 상단 돌파 매수',
+    },
+    {
+      kind: 'simple',
+      ind: 'NEW_HIGH',
+      cond: 'CROSS_UP',
+      l: 'CLOSE_PRICE',
+      r: nhPriorField(20),
+      period: 20,
+      signal: 'buy',
+      label: '20일 신고가 돌파',
+      description: '종가가 직전 20봉 최고가 이상 — 한 달 박스 돌파 매수',
+    },
+    {
+      kind: 'simple',
+      ind: 'NEW_LOW',
+      cond: 'CROSS_DOWN',
+      l: 'CLOSE_PRICE',
+      r: nlPriorField(9),
+      period: 9,
+      signal: 'sell',
+      label: '9일 신저가 이탈',
+      description: '종가가 직전 9봉 최저가 이하 — 단기 지지 붕괴 매도/손절',
+    },
+    {
+      kind: 'simple',
+      ind: 'NEW_LOW',
+      cond: 'CROSS_DOWN',
+      l: 'CLOSE_PRICE',
+      r: nlPriorField(20),
+      period: 20,
+      signal: 'sell',
+      label: '20일 신저가 이탈',
+      description: '종가가 직전 20봉 최저가 이하 — 추세 이탈 청산',
+    },
     {
       kind: 'composite',
       signal: 'buy',
@@ -173,5 +237,5 @@ export function getStrategyTemplates(def: DefType): StrategyTemplateDef[] {
 }
 
 export function simpleTemplateToNode(tmpl: SimpleStrategyTemplate): LogicNode {
-  return condition(tmpl.ind, tmpl.cond, tmpl.l, tmpl.r);
+  return condition(tmpl.ind, tmpl.cond, tmpl.l, tmpl.r, 1, tmpl.period);
 }
diff --git a/frontend/src/utils/strategyToChartIndicators.ts b/frontend/src/utils/strategyToChartIndicators.ts
index 2fbce24..8f61bff 100644
--- a/frontend/src/utils/strategyToChartIndicators.ts
+++ b/frontend/src/utils/strategyToChartIndicators.ts
@@ -35,6 +35,8 @@ const DSL_TO_REGISTRY: Record<string, string> = {
   INVEST_PSYCHOLOGICAL: 'InvestPsychological',
   BWI: 'BBBandWidth',
   DONCHIAN: 'DonchianChannels',
+  NEW_HIGH: 'DonchianChannels',
+  NEW_LOW: 'DonchianChannels',
   ICHIMOKU: 'IchimokuCloud',
   ATR: 'ATR',
   MFI: 'MFI',
diff --git a/frontend/src/utils/strategyTypes.ts b/frontend/src/utils/strategyTypes.ts
index 59b8beb..7a5fbc2 100644
--- a/frontend/src/utils/strategyTypes.ts
+++ b/frontend/src/utils/strategyTypes.ts
@@ -72,6 +72,8 @@ export const INDICATOR_CONDITIONS: Record<string, string[]> = {
   MA: COMMON_CONDITIONS, EMA: COMMON_CONDITIONS,
   BOLLINGER: COMMON_CONDITIONS,
   DONCHIAN: COMMON_CONDITIONS,
+  NEW_HIGH: COMMON_CONDITIONS,
+  NEW_LOW: COMMON_CONDITIONS,
   ICHIMOKU: [
     ...COMMON_CONDITIONS,
     'ABOVE_CLOUD', 'BELOW_CLOUD', 'IN_CLOUD', 'CLOUD_BREAK_UP', 'CLOUD_BREAK_DOWN',
@@ -123,6 +125,14 @@ export const LEFT_FIELD_OPTIONS: Record<string, FieldOption[]> = {
     { value: 'LOW_PRICE', label: '저가' },
     { value: 'HIGH_PRICE', label: '고가' },
   ],
+  NEW_HIGH: [
+    { value: 'CLOSE_PRICE', label: '종가' },
+    { value: 'HIGH_PRICE', label: '고가' },
+  ],
+  NEW_LOW: [
+    { value: 'CLOSE_PRICE', label: '종가' },
+    { value: 'LOW_PRICE', label: '저가' },
+  ],
   ICHIMOKU: [
     { value: 'CLOSE_PRICE', label: '종가' },
     { value: 'CONVERSION_LINE', label: '전환선' }, { value: 'BASE_LINE', label: '기준선' },
@@ -194,15 +204,29 @@ export const RIGHT_FIELD_OPTIONS: Record<string, FieldOption[]> = {
     { value: 'LOWER', label: '하단밴드' }, { value: 'CUSTOM', label: '직접 입력' },
   ],
   DONCHIAN: [
+    { value: 'DC_UPPER_9', label: '상단(9일 최고가)' },
     { value: 'DC_UPPER_10', label: '상단(10일 최고가)' },
     { value: 'DC_UPPER_20', label: '상단(20일 최고가)' },
     { value: 'DC_UPPER_55', label: '상단(55일 최고가)' },
     { value: 'DC_MIDDLE_20', label: '중심(20일)' },
+    { value: 'DC_LOWER_9', label: '하단(9일 최저가)' },
     { value: 'DC_LOWER_10', label: '하단(10일 최저가)' },
     { value: 'DC_LOWER_20', label: '하단(20일 최저가)' },
     { value: 'DC_LOWER_55', label: '하단(55일 최저가)' },
     { value: 'CUSTOM', label: '직접 입력' },
   ],
+  NEW_HIGH: [
+    { value: 'NH_PRIOR_9', label: '9일 신고가선(직전 N봉)' },
+    { value: 'NH_PRIOR_20', label: '20일 신고가선(직전 N봉)' },
+    { value: 'CLOSE_PRICE', label: '종가' },
+    { value: 'CUSTOM', label: '직접 입력' },
+  ],
+  NEW_LOW: [
+    { value: 'NL_PRIOR_9', label: '9일 신저가선(직전 N봉)' },
+    { value: 'NL_PRIOR_20', label: '20일 신저가선(직전 N봉)' },
+    { value: 'CLOSE_PRICE', label: '종가' },
+    { value: 'CUSTOM', label: '직접 입력' },
+  ],
   ICHIMOKU: [
     { value: 'CONVERSION_LINE', label: '전환선' }, { value: 'BASE_LINE', label: '기준선' },
     { value: 'LEADING_SPAN1', label: '선행1' },    { value: 'LEADING_SPAN2', label: '선행2' },
diff --git a/frontend/src/utils/virtualLiveStrategySync.ts b/frontend/src/utils/virtualLiveStrategySync.ts
index 30af7ef..322c69f 100644
--- a/frontend/src/utils/virtualLiveStrategySync.ts
+++ b/frontend/src/utils/virtualLiveStrategySync.ts
@@ -1,5 +1,7 @@
 import { saveLiveStrategySettings } from './backendApi';
+import { normalizeStartCandleType } from './strategyStartNodes';
 import type { VirtualSessionConfig, VirtualTargetItem } from './virtualTradingStorage';
+import { resolveTargetCandleType } from './virtualTradingStorage';
 
 /** 가상투자 대상 종목을 백엔드 live strategy 설정과 동기화 */
 export async function syncVirtualTargetsToBackend(
@@ -21,6 +23,7 @@ export async function syncVirtualTargetsToBackend(
       saveLiveStrategySettings({
         market: t.market,
         strategyId: t.strategyId ?? session.globalStrategyId,
+        candleType: normalizeStartCandleType(resolveTargetCandleType(t)),
         ...shared,
       }),
     ),
diff --git a/frontend/src/utils/virtualSignalMetrics.ts b/frontend/src/utils/virtualSignalMetrics.ts
index 7376e33..825e40e 100644
--- a/frontend/src/utils/virtualSignalMetrics.ts
+++ b/frontend/src/utils/virtualSignalMetrics.ts
@@ -234,3 +234,19 @@ export function formatUpdatedTime(ts: number | undefined): string {
     hour12: false,
   });
 }
+
+/** 카드 푸터용 전략 조건 한 줄 요약 */
+export function formatVirtualConditionBrief(
+  row: VirtualConditionRow & { currentValue?: number | null },
+): string {
+  const sideTag = row.side === 'buy' ? '[매수]' : row.side === 'sell' ? '[매도]' : '';
+  const threshold = row.thresholdLabel
+    ?? formatStrategyThreshold(row.conditionType, row.targetValue, row.conditionLabel);
+  return [sideTag, row.displayName, threshold].filter(Boolean).join(' ');
+}
+
+export function formatVirtualCardConditionLines(
+  rows: Array<VirtualConditionRow & { currentValue?: number | null }>,
+): string[] {
+  return rows.map(formatVirtualConditionBrief);
+}
diff --git a/frontend/src/utils/virtualTradingStorage.ts b/frontend/src/utils/virtualTradingStorage.ts
index 24bb3f1..2cd3419 100644
--- a/frontend/src/utils/virtualTradingStorage.ts
+++ b/frontend/src/utils/virtualTradingStorage.ts
@@ -1,8 +1,12 @@
+import { normalizeStartCandleType } from './strategyStartNodes';
+
 /** 가상투자 대상 종목·세션 설정 localStorage */
 
 export interface VirtualTargetItem {
   market: string;
   strategyId: number | null;
+  /** 종목별 전략 평가 분봉 (gc_live_strategy_settings.candle_type) */
+  candleType?: string;
   koreanName?: string;
   englishName?: string;
 }
@@ -92,3 +96,14 @@ export function saveVirtualCardViewMode(mode: VirtualCardViewMode): void {
     localStorage.setItem(CARD_VIEW_KEY, mode);
   } catch { /* ignore */ }
 }
+
+/** 카드 시간봉 드롭다운 기본값 — 저장값 → 스냅샷 → 1m */
+export function resolveTargetCandleType(
+  item: Pick<VirtualTargetItem, 'candleType'>,
+  snapshotTimeframe?: string | null,
+): string {
+  if (item.candleType) return normalizeStartCandleType(item.candleType);
+  const raw = snapshotTimeframe?.split(',')[0]?.trim();
+  if (raw) return normalizeStartCandleType(raw);
+  return '1m';
+}
diff --git a/전략편집기 로직 및 동작흐름.md b/전략편집기 로직 및 동작흐름.md
new file mode 100644
index 0000000..8fe2108
--- /dev/null
+++ b/전략편집기 로직 및 동작흐름.md	
@@ -0,0 +1,604 @@
+# 전략편집기 로직 및 동작흐름
+
+goldenChart **전략편집기(Strategy Editor)** 의 화면 구성, 편집·저장 방식, 그리고 저장된 전략이 **백엔드에서 매매 시그널(BUY/SELL)을 감지**하기까지의 전체 흐름을 정리한 문서입니다.
+
+> 관련 문서: [실시간 전략체크 구현.md](./실시간%20전략체크%20구현.md) — 실시간 ON/OFF, `CANDLE_CLOSE` / `REALTIME_TICK` 설정 및 STOMP 프로토콜
+
+---
+
+## 1. 개요
+
+| 구분 | 설명 |
+|------|------|
+| **메뉴** | `strategy-editor` (`App.tsx` → `StrategyEditorPage`) |
+| **역할** | 매수·매도 조건을 **논리 트리(DSL)** 로 구성하고 `gc_strategy` 테이블에 저장 |
+| **평가 엔진** | 백엔드 **Ta4j** — `StrategyDslToTa4jAdapter`가 DSL JSON → `Rule` 변환 |
+| **실시간 시그널** | `LiveStrategyEvaluator` + `BarBuilder` / `LiveStrategyScheduler` |
+| **레거시 화면** | `StrategyPage` (`strategy`) — 동일 API·DSL, UI만 구형 트리 편집기 |
+
+전략편집기에서 저장하는 것은 **조건 트리 JSON**(`buyCondition`, `sellCondition`)이며, 노드 좌표·팔레트 사용자 정의 항목 등은 **브라우저 localStorage**에만 둘 수 있습니다.
+
+---
+
+## 2. 화면 구성 (`StrategyEditorPage`)
+
+### 2.1 레이아웃
+
+```
+┌─────────────────────────────────────────────────────────────────────────┐
+│  BuilderPageShell — 제목: 전략편집기 / Strategy Builder                  │
+├──────────────┬──────────────────────────────────────────┬───────────────┤
+│  좌측 패널    │  중앙 편집 영역                           │  우측 패널     │
+│  (리사이즈)   │                                          │  (리사이즈)    │
+│              │  [매수] [매도] 탭                          │               │
+│  전략 목록    │  [그래프 | 목록] 편집 모드                  │  지표 | 템플릿 │
+│  새 전략      │  ┌────────────────────────────────────┐  │  팔레트       │
+│  삭제        │  │ StrategyEditorCanvas (React Flow)   │  │  START/AND/  │
+│  Import/     │  │  또는 StrategyListEditor            │  │  OR/NOT 칩    │
+│  Export      │  └────────────────────────────────────┘  │  보조/복합    │
+│              │  선택 노드 설정 바 (CondEditor)            │  지표 탭      │
+├──────────────┴──────────────────────────────────────────┴───────────────┤
+│  하단 터미널 — LogicExpressionPreview (논리 수식 미리보기)                  │
+└─────────────────────────────────────────────────────────────────────────┘
+```
+
+**스타일:** `strategyEditor.css`, `strategyEditorTheme.css`
+
+### 2.2 주요 UI 상태
+
+| State | 타입 | 용도 |
+|-------|------|------|
+| `signalTab` | `'buy' \| 'sell'` | 매수/매도 조건 편집 대상 |
+| `editorMode` | `'graph' \| 'list'` | React Flow vs 목록 트리 (`gc_se_editor_mode`) |
+| `rightTab` | `'indicators' \| 'templates'` | 지표 팔레트 vs 프리셋 템플릿 |
+| `indicatorSubTab` | `'auxiliary' \| 'composite'` | 단일 보조지표 vs 복합(2기간 교차) |
+| `buyCondition` / `sellCondition` | `LogicNode \| null` | 저장 대상 DSL 루트 |
+| `buyLayout` / `sellLayout` | `SignalFlowLayoutSnapshot` | 노드 좌표, 엣지, START 메타 (로컬 전용) |
+| `buyOrphans` / `sellOrphans` | `LogicNode[]` | 그래프에서 분리된 고아 노드 (DB 미저장) |
+| `selectedId` | `number \| 'draft'` | 선택 전략 ID |
+
+### 2.3 중앙 편집 영역 동작
+
+#### 그래프 모드 (`StrategyEditorCanvas`)
+
+- **React Flow** 기반: `StartNode`, `LogicGateNode`(AND/OR/NOT), `ConditionFlowNode`
+- 팔레트에서 드래그 앤 드롭 → `makeNode` / `mergeAtRoot`로 트리에 삽입
+- START 노드에서 **평가 분봉** 선택 (`1m` ~ `1d`)
+- START를 추가하면 **다중 분기** (`extraStartIds`) — 저장 시 `AND`/`OR` + 여러 `TIMEFRAME`으로 직렬화
+- 노드 이동·연결 변경 시 `saveStrategyFlowLayout` → localStorage `gc_se_flow_layout_v1`
+
+#### 목록 모드 (`StrategyListEditor`)
+
+- 동일 DSL을 트리/섹션 UI로 편집
+- START 섹션별 분봉·조건 트리 관리
+
+#### 선택 노드 설정 (`CondEditor` — `strategyEditorShared.tsx`)
+
+- `indicatorType`, `conditionType`, `leftField`, `rightField`, `period`, 복합지표 기간 등
+- `buildStrategyEditorDef()` — **차트 보조지표 설정과 분리된** 고정 기본 파라미터 사용
+
+### 2.4 우측 팔레트
+
+| 영역 | 내용 |
+|------|------|
+| **시작·논리** | START, AND, OR, NOT (`PaletteChip`) |
+| **밴드·추세** | MA, EMA, BOLLINGER, DONCHIAN, ICHIMOKU 등 |
+| **보조지표** | RSI, MACD, CCI, 신고가/신저가(NH_PRIOR/NL_PRIOR) 등 — `se-palette-auxiliary-v1` |
+| **복합지표** | RSI+RSI, MACD+MACD 등 2기간 교차 — `se-palette-composite-v1` |
+| **템플릿** | `strategyPresets.ts` — 터틀, 돈치안, 일목 등 원클릭 삽입 |
+
+드래그 payload: `application/json` — `{ type, value, label, composite?, period?, ... }`
+
+### 2.5 하단 Logic Expression
+
+`LogicExpressionPreview` — `collectEditorBranches` / `collectDslBranches`로 분기별 수식 표시 예:
+
+```
+[5m] (RSI(9) CROSS_UP K_70 AND MACD CROSS_UP)
+AND [1h] (ADX CROSS_UP K_25)
+```
+
+---
+
+## 3. 전략 데이터 모델 (DSL)
+
+### 3.1 핵심 타입 (`strategyTypes.ts`)
+
+```typescript
+type LogicNodeType = 'AND' | 'OR' | 'NOT' | 'CONDITION' | 'TIMEFRAME';
+
+interface ConditionDSL {
+  indicatorType: string;      // RSI, MACD, DONCHIAN, NEW_HIGH, ...
+  conditionType: string;      // GT, CROSS_UP, CROSS_DOWN, ...
+  leftField?: string;         // RSI_VALUE, DC_UPPER_20, NH_PRIOR_9, ...
+  rightField?: string;        // K_70, SIGNAL_LINE, DC_LOWER_10, ...
+  period?: number;
+  composite?: boolean;        // 복합지표 2기간 교차
+  leftPeriod?, rightPeriod?;
+  leftCandleType?, rightCandleType?;
+  // ...
+}
+
+interface LogicNode {
+  id: string;
+  type: LogicNodeType;
+  children?: LogicNode[];
+  condition?: ConditionDSL;
+  candleType?: string;        // TIMEFRAME 전용
+}
+```
+
+### 3.2 DB/API 저장 형태 (`GcStrategy`)
+
+| 컬럼 | 내용 |
+|------|------|
+| `buy_condition_json` | 매수(진입) 조건 루트 `LogicNode` |
+| `sell_condition_json` | 매도(청산) 조건 루트 `LogicNode` |
+| `name`, `description`, `enabled` | 메타 |
+
+API: `POST /api/strategies` — `saveStrategy()` (`backendApi.ts`)
+
+### 3.3 CONDITION 리프 예시
+
+```json
+{
+  "id": "n_abc123",
+  "type": "CONDITION",
+  "condition": {
+    "indicatorType": "RSI",
+    "conditionType": "CROSS_UP",
+    "leftField": "RSI_VALUE",
+    "rightField": "K_70",
+    "period": 14
+  }
+}
+```
+
+### 3.4 논리 노드 예시
+
+```json
+{
+  "id": "n_and1",
+  "type": "AND",
+  "children": [
+    { "type": "CONDITION", "condition": { "...": "RSI CROSS_UP" } },
+    { "type": "CONDITION", "condition": { "...": "MACD CROSS_UP" } }
+  ]
+}
+```
+
+---
+
+## 4. START · TIMEFRAME · 다중 분봉
+
+편집기 UI의 **START 노드**는 DB에 그대로 저장되지 않습니다. `strategyConditionSerde.ts`가 저장/로드 시 변환합니다.
+
+### 4.1 편집기 내부 상태 (`EditorConditionState`)
+
+```typescript
+{
+  root: LogicNode | null;              // 기본 START 분기의 조건 트리
+  startMeta: { [startId]: { candleType } };
+  extraStartIds: string[];             // 추가 START
+  extraRoots: { [startId]: LogicNode };
+  startCombineOp?: 'AND' | 'OR';       // 다중 START 결합
+}
+```
+
+- 기본 START ID: `__strategy_start__`
+- 추가 START: `__strategy_start_{uuid}__`
+
+### 4.2 저장 시 인코딩 (`encodeConditionForSave`)
+
+| 경우 | 저장 결과 |
+|------|-----------|
+| 조건 없음 | `null` |
+| 단일 분기, 분봉 `1m` | 루트 트리만 (TIMEFRAME 생략) |
+| 단일 분기, 분봉 `5m` 등 | `{ type: "TIMEFRAME", candleType: "5m", children: [root] }` |
+| 다중 START | `{ type: "AND"\|"OR", children: [ TIMEFRAME×N ] }` |
+
+### 4.3 로드 시 디코딩 (`decodeConditionForEditor`)
+
+- 최상위가 `AND`/`OR`이고 **자식이 전부 `TIMEFRAME`** → 다중 START로 복원
+- 최상위가 `TIMEFRAME` 단일 → 기본 START + 해당 분봉
+- 그 외 → 기본 `1m` START, 루트 = 전체 DSL
+
+### 4.4 지원 분봉 (`strategyStartNodes.ts`)
+
+`1m`, `3m`, `5m`, `10m`, `15m`, `30m`, `1h`, `4h`, `1d`
+
+---
+
+## 5. 지표·조건 종류
+
+### 5.1 단일 보조지표
+
+- 팔레트 또는 템플릿에서 `CONDITION` 노드 생성
+- `leftField` / `rightField` — 지표 플롯 vs 상수(`K_70`) vs 다른 플롯(`SIGNAL_LINE`)
+- 기간은 `period` 또는 필드명 접미사 (`RSI_VALUE_9`)
+
+### 5.2 복합지표 (`compositeIndicators.ts`)
+
+동일 지표 **두 기간** 비교 — 예: RSI(9) 상향 돌파 RSI(20)
+
+```json
+{
+  "composite": true,
+  "indicatorType": "RSI",
+  "conditionType": "CROSS_UP",
+  "leftField": "RSI_VALUE_9",
+  "rightField": "RSI_VALUE_20",
+  "leftPeriod": 9,
+  "rightPeriod": 20
+}
+```
+
+요소별 **서로 다른 분봉**(`leftCandleType`, `rightCandleType`)은 백엔드 `buildCrossTimeframeCompositeRule`로 처리 (라이브 + storage 필요).
+
+### 5.3 신고가·신저가 (단일 지표)
+
+- `NEW_HIGH` / `NEW_LOW` + `NH_PRIOR_N` / `NL_PRIOR_N`
+- 의미: **직전 N봉** 최고가/최저가 대비 종가 돌파/이탈 (당일 봉 제외)
+- 백엔드: `PreviousValueIndicator(HighestValueIndicator(high, N), 1)` 등
+
+### 5.4 돈치안·일목 등
+
+- `DONCHIAN` → `DC_UPPER_N`, `DC_LOWER_N`
+- `ICHIMOKU` → 구름/선행스팬 전용 `conditionType` (`ABOVE_CLOUD`, `CLOUD_BREAK_UP`, …)
+
+---
+
+## 6. 저장·로드 프로세스 (프론트엔드)
+
+### 6.1 저장 (`handleSave`)
+
+```mermaid
+sequenceDiagram
+  participant U as 사용자
+  participant SE as StrategyEditorPage
+  participant Serde as encodeConditionForSave
+  participant API as POST /api/strategies
+  participant DB as gc_strategy
+
+  U->>SE: 저장 클릭
+  SE->>Serde: buyEditorState / sellEditorState
+  Serde-->>SE: buyCondition, sellCondition (LogicNode)
+  SE->>API: saveStrategy({ name, buyCondition, sellCondition })
+  API->>DB: JSON 컬럼 persist
+  SE->>SE: persistFlowLayout(id) — localStorage만
+```
+
+검증:
+
+- 전략명 필수
+- 매수·매도 중 **하나 이상** 조건 필요
+- `draft` 저장 시 → DB ID 발급 후 `migrateStrategyFlowLayout('draft' → id)`
+
+### 6.2 로드
+
+1. `loadStrategies()` — 서버 우선
+2. 실패 시 `loadStratsLocal()` (`gc_strat_v2`)
+3. 전략 선택 → `decodeConditionForEditor(buy/sell)` + `loadStrategyFlowLayout(id)`
+
+### 6.3 localStorage vs DB
+
+| 키 | 저장 내용 | DB |
+|----|-----------|-----|
+| `gc_strategy` (API) | buy/sell JSON | ✅ |
+| `gc_se_flow_layout_v1` | 노드 좌표, edge, startMeta, orphans | ❌ |
+| `gc_strat_v2` | 전략 목록 캐시 | ❌ (폴백) |
+| `se-palette-auxiliary-v1` | 사용자 보조지표 팔레트 | ❌ |
+| `se-palette-composite-v1` | 사용자 복합지표 팔레트 | ❌ |
+| `gc_se_editor_mode` | graph / list | ❌ |
+
+Import/Export: `strategyImportExport.ts` — DSL + `flowLayout` + `editorMode` JSON 파일
+
+---
+
+## 7. 백엔드: DSL → Ta4j Rule
+
+### 7.1 어댑터 (`StrategyDslToTa4jAdapter`)
+
+**진입:** `toRule(JsonNode dsl, RuleBuildContext ctx)`
+
+| `LogicNode.type` | 빌드 메서드 | Ta4j |
+|------------------|-------------|------|
+| `AND` | `buildAndRule` | `AndRule` |
+| `OR` | `buildOrRule` | `OrRule` |
+| `NOT` | `buildNotRule` | `NotRule` |
+| `TIMEFRAME` | `buildTimeframeRule` | 분기 `BarSeries` + `CrossSeriesRule` |
+| `CONDITION` | `buildConditionRule` | 비교/교차 Rule |
+
+**CONDITION `conditionType` 매핑 (요약):**
+
+| conditionType | Ta4j 개념 |
+|---------------|-----------|
+| GT, LT, GTE, LTE, EQ, NEQ | Over/Under/Equals |
+| CROSS_UP, CROSS_DOWN | `CrossedUpIndicatorRule`, `CrossedDownIndicatorRule` |
+| SLOPE_UP, SLOPE_DOWN | `IsRisingRule`, `IsFallingRule` |
+| HOLD_N_DAYS | N봉 연속 충족 |
+| 일목 전용 | 구름/선행스팬 규칙 |
+
+**필드 해석:** `resolveField` — OHLCV, `K_*` 상수, RSI/CCI/MACD/Donchian/NH_PRIOR/NL_PRIOR 등
+
+**지표 파라미터:** DB `indicator_settings` + `DSL_TO_REGISTRY` 매핑
+
+### 7.2 멀티 타임프레임 (라이브)
+
+`RuleBuildContext`에 `market`, `Ta4jStorage`가 있으면:
+
+- `TIMEFRAME.candleType`에 맞는 시리즈를 storage에서 로드
+- 트리거 봉(예: 1m 마감) 인덱스에서 **다른 분봉 시리즈 최신 봉**과 `CrossSeriesRule`로 평가
+
+백테스트는 단일 요청 `BarSeries`만 사용 → 교차 TF는 primary series fallback.
+
+### 7.3 Strategy 조립 (`LiveStrategyEvaluator.buildStrategy`)
+
+```java
+Rule entryRule = buildRule(buyConditionJson,  series, params, market, storage);
+Rule exitRule  = buildRule(sellConditionJson, series, params, market, storage);
+BaseStrategy strategy = new BaseStrategy(entryRule, exitRule);
+```
+
+캐시 키: `market:candleType:strategyId`
+
+---
+
+## 8. 백엔드: 데이터 수집 → 평가 트리거
+
+### 8.1 캔들 파이프라인
+
+```mermaid
+flowchart LR
+  UWS[Upbit WebSocket 틱]
+  MTP[MarketTickProcessor]
+  BB[BarBuilder]
+  TS[Ta4jStorage BarSeries]
+
+  UWS --> MTP --> BB --> TS
+```
+
+- 동일 분: `updateLastBar` (진행 중 봉 갱신)
+- 분 변경: `commitBar` → 확정봉 + 상위봉(3m~1d) 집계
+
+### 8.2 어떤 분봉을 평가할지
+
+`StrategyConditionTimeframeService`:
+
+- 전략 DSL을 walk하여 **`TIMEFRAME` 노드의 candleType** 수집
+- `usesTimeframe(strategyId, candleType)` — 해당 봉 마감/스케줄에서만 평가
+
+`LiveStrategyTimeframeService`는 UI/설정용 `gc_live_strategy_settings.candle_type` resolve (가상투자 카드 시간봉 드롭다운 등).
+
+---
+
+## 9. 시그널 감지 프로세스
+
+### 9.1 전제: 실시간 전략 설정 (`GcLiveStrategySettings`)
+
+| 필드 | 값 | 의미 |
+|------|-----|------|
+| `isLiveCheck` | true/false | 실시간 체크 ON |
+| `executionType` | `CANDLE_CLOSE` / `REALTIME_TICK` | 평가 타이밍 |
+| `strategyId` | FK | 사용할 `GcStrategy` |
+| `positionMode` | `LONG_ONLY` / `SIGNAL_ONLY` | 포지션 추적 방식 |
+| `candleType` | `1m`…`1d` | 설정/UI 기본 분봉 |
+
+가상투자·설정 화면에서 `PUT /api/strategy/settings`로 반영.
+
+### 9.2 시그널 판정 (`StrategySignalDeterminer`)
+
+| positionMode | BUY | SELL |
+|--------------|-----|------|
+| **LONG_ONLY** | `strategy.shouldEnter(index, record)` | `strategy.shouldExit(index, record)` |
+| **SIGNAL_ONLY** | `entryRule.isSatisfied(index)` | `exitRule.isSatisfied(index)` |
+
+`LONG_ONLY`는 evaluator가 **가상 TradingRecord**를 캐시해 중복 진입 방지.
+
+결과: `"BUY"` | `"SELL"` | `"NONE"`
+
+### 9.3 방식 A — 봉 마감 직후 (`CANDLE_CLOSE`)
+
+**트리거:** `BarBuilder.commitBar()` → `evaluateStrategyOnBarClose()`
+
+**조건 (각 설정 행):**
+
+1. `isLiveCheck == true`
+2. `executionType == CANDLE_CLOSE`
+3. `usesTimeframe(strategyId, candleType)`
+4. `Ta4jStorage`에 해당 분봉 데이터 존재
+
+**평가:** `LiveStrategyEvaluator.evaluateCandleClose(market, candleType, maturedIndex)`
+
+- **확정된 직전 봉 인덱스**에서 1회 판정
+
+### 9.4 방식 B — 실시간 틱 (`REALTIME_TICK`)
+
+**트리거:** `LiveStrategyScheduler` — **3초 주기** (`@Scheduled`)
+
+**조건:** `executionType == REALTIME_TICK` 등 동일
+
+**평가:** `evaluateRealtimeTick(market, candleType)`
+
+- `currentIndex = series.getEndIndex()` — **진행 중(provisional) 봉**
+- **중복 방지:** 동일 `(market, candleType)`에서 같은 index에 이미 시그널 냈으면 skip
+- 평가 전 **strategy 캐시 제거** — `updateLastBar` 후 지표 캐시 stale 방지
+
+### 9.5 보완 — 마감 직후 REALTIME 재평가
+
+`BarBuilder`: `CANDLE_CLOSE`가 `NONE`이면 → `evaluateRealtimeAtClose(maturedIndex)`
+
+- 봉 마감 시점의 **교차(CROSS)** 를 3초 스케줄러가 놓치는 경우 대비
+
+### 9.6 평가 흐름 (단일 종목·단일 시점)
+
+```mermaid
+flowchart TD
+  A[트리거: 봉 마감 또는 3초 틱]
+  B{isLiveCheck?}
+  C{usesTimeframe?}
+  D[LiveStrategyEvaluator.evaluate]
+  E[buildStrategy - DSL to Ta4j]
+  F[StrategySignalDeterminer.determineSignal]
+  G{결과}
+  H[publishStrategySignal]
+  I[NONE - 종료]
+
+  A --> B
+  B -->|false| I
+  B -->|true| C
+  C -->|false| I
+  C -->|true| D
+  D --> E --> F --> G
+  G -->|BUY/SELL| H
+  G -->|NONE| I
+```
+
+**주의:** 동일 마켓에 활성 설정이 여러 개면 evaluator는 **첫 non-NONE 시그널만** 반환할 수 있음.
+
+---
+
+## 10. 시그널 발행·후처리
+
+### 10.1 STOMP WebSocket
+
+**토픽:** `/sub/charts/{market}/{candleType}`  
+**엔드포인트:** `ws://host/ws/trading` (SockJS)
+
+**페이로드 (`CandleBarDto`):** OHLCV + 지표값 + **`signal`**: `"BUY"` | `"SELL"` | null
+
+```json
+{
+  "t": 1779229260,
+  "o": 92080000.0,
+  "c": 92050000.0,
+  "signal": "BUY"
+}
+```
+
+별도 “시그널 전용” 토픽은 없음 — **차트 캔들 스트림에 시그널 필드**로 포함.
+
+### 10.2 DB·알림·주문
+
+| 단계 | 클래스 |
+|------|--------|
+| DB 저장 | `TradeSignalService.save` → `GcTradeSignal` |
+| FCM | `FcmPushService` |
+| 주문 큐 | `OrderExecutionQueue.submitSignal` (deviceId 있을 때) |
+
+### 10.3 프론트 차트 반영
+
+- STOMP 구독 → 캔들 수신 시 `signal` 필드로 **마커(setMarkers)** 표시
+- `LiveSignalNotifier`, 차트 슬롯 등
+
+---
+
+## 11. 조건 현황 API (시그널과 별개)
+
+**용도:** 가상투자 카드, 모니터링 UI — “지금 각 조건이 얼마나 충족됐는지”
+
+| 항목 | 내용 |
+|------|------|
+| API | `GET /api/strategy/live-conditions?market=&strategyId=` |
+| 구현 | `LiveConditionStatusService` |
+| 방식 | buy/sell JSON의 **각 CONDITION 리프**를 개별 `Rule`로 평가 |
+| matchRate | 충족 리프 수 / 평가 가능 리프 수 (전체 AND/OR 트리 충족과 다름) |
+
+실제 BUY/SELL 발화는 §9 경로만 사용.
+
+---
+
+## 12. 백테스트 vs 실시간
+
+| 항목 | 백테스트 (`BacktestingService`) | 실시간 (`LiveStrategyEvaluator`) |
+|------|--------------------------------|----------------------------------|
+| BarSeries | 요청 `bars`로 일회성 생성 | `Ta4jStorage` 실시간 누적 |
+| adapter | `toRule(dsl, series, params)` | `toRule(..., market, storage)` |
+| 스캔 | **전 구간** 0..barCount-1 | **단일 index** (마감 or provisional) |
+| 청산 | DSL sell + **손절/익절/트레일링** OR 합성 | DSL sell (+ 리스크 모니터 별도) |
+| 출력 | `BacktestResponse.signals`, `gc_backtest_result` | STOMP + `gc_trade_signal` |
+| 멀티 TF | storage 없으면 단일 시리즈 fallback | `TIMEFRAME` / 교차 TF 지원 |
+
+백테스트도 **동일 DSL·동일 어댑터**를 사용하므로, 편집기에서 저장한 전략이 백테스트와 라이브에서 같은 의미로 해석됩니다 (데이터·타이밍 차이는 있음).
+
+---
+
+## 13. 전략 사용 경로 (편집기 이후)
+
+```mermaid
+flowchart TB
+  SE[전략편집기 저장]
+  DB[(gc_strategy)]
+  SE --> DB
+
+  DB --> BT[백테스팅 화면]
+  DB --> LIVE[실시간 전략 설정]
+  DB --> VT[가상투자 카드]
+
+  LIVE --> LSS[gc_live_strategy_settings]
+  LSS --> EVAL[LiveStrategyEvaluator]
+  VT --> LC[live-conditions API]
+
+  EVAL --> STOMP[STOMP signal]
+  EVAL --> TSIG[gc_trade_signal]
+```
+
+1. **전략편집기** — DSL 작성·저장  
+2. **설정 / 가상투자** — 종목별 `strategyId`, `executionType`, `positionMode`, 평가 분봉  
+3. **백테스트** — 과거 봉으로 전 구간 시뮬레이션  
+4. **라이브** — Upbit 틱 → Ta4j → 시그널 → STOMP·DB·(자동매매)
+
+---
+
+## 14. 주요 소스 파일
+
+### 프론트엔드
+
+| 경로 | 역할 |
+|------|------|
+| `frontend/src/components/StrategyEditorPage.tsx` | 전략편집기 메인 |
+| `frontend/src/components/strategyEditor/StrategyEditorCanvas.tsx` | React Flow 캔버스 |
+| `frontend/src/components/strategyEditor/StrategyListEditor.tsx` | 목록 편집기 |
+| `frontend/src/components/strategyEditor/LogicExpressionPreview.tsx` | 논리 수식 미리보기 |
+| `frontend/src/utils/strategyTypes.ts` | DSL 타입·조건 상수 |
+| `frontend/src/utils/strategyConditionSerde.ts` | START↔TIMEFRAME 직렬화 |
+| `frontend/src/utils/strategyEditorShared.tsx` | CondEditor, 트리 조작, DEF |
+| `frontend/src/utils/strategyEditorLayoutStorage.ts` | Flow 레이아웃 localStorage |
+| `frontend/src/utils/compositeIndicators.ts` | 복합지표 정의 |
+| `frontend/src/utils/strategyStartNodes.ts` | 분봉·START 상수 |
+| `frontend/src/utils/strategyPresets.ts` | 템플릿 |
+| `frontend/src/utils/backendApi.ts` | `saveStrategy`, `loadStrategies` |
+
+### 백엔드
+
+| 경로 | 역할 |
+|------|------|
+| `backend/.../entity/GcStrategy.java` | 전략 엔티티 |
+| `backend/.../entity/GcLiveStrategySettings.java` | 실시간 설정 |
+| `backend/.../service/StrategyDslToTa4jAdapter.java` | DSL → Rule |
+| `backend/.../service/LiveStrategyEvaluator.java` | 실시간 평가 |
+| `backend/.../service/StrategySignalDeterminer.java` | BUY/SELL 판정 |
+| `backend/.../service/BacktestingService.java` | 백테스트 |
+| `backend/.../service/LiveConditionStatusService.java` | 조건 현황 API |
+| `backend/.../service/StrategyConditionTimeframeService.java` | DSL 분봉 수집 |
+| `backend/.../websocket/BarBuilder.java` | 봉 조립·마감 평가 |
+| `backend/.../websocket/LiveStrategyScheduler.java` | 3초 REALTIME_TICK |
+| `backend/.../websocket/TradingWebSocketBroker.java` | STOMP 발행 |
+| `backend/.../storage/Ta4jStorage.java` | BarSeries 저장소 |
+
+---
+
+## 15. 핵심 체크리스트 (디버깅용)
+
+1. **저장 DSL** — `encodeConditionForSave` 후 JSON에 `TIMEFRAME` / `AND`+`TIMEFRAME` 구조가 의도대로인가?  
+2. **분봉** — 조건 리프의 `timeframe` vs `TIMEFRAME` 래핑 `candleType` 일치 여부  
+3. **실시간 ON** — `isLiveCheck`, `strategyId` 연결  
+4. **실행 방식** — `CANDLE_CLOSE` vs `REALTIME_TICK`  
+5. **데이터** — `Ta4jStorage.exists(market, candleType)`, warm-up(`pinCandleWatch`)  
+6. **포지션 모드** — `LONG_ONLY`에서 이미 포지션일 때 BUY 무시  
+7. **STOMP** — 구독 토픽 `/sub/charts/{market}/{candleType}` 와 평가 분봉 일치  
+8. **UI 현황 vs 시그널** — `live-conditions` matchRate ≠ 실제 BUY/SELL 발화 조건  
+
+---
+
+*문서 작성 기준: goldenChart 저장소 프론트/백엔드 소스 구조. API·클래스명은 변경될 수 있으므로 구현 확인 시 §14 파일 목록을 참고하세요.*