diff --git a/frontend/src/chart/ChartWorkspaceView.tsx b/frontend/src/chart/ChartWorkspaceView.tsx
index 2af46e5..d84dd66 100644
--- a/frontend/src/chart/ChartWorkspaceView.tsx
+++ b/frontend/src/chart/ChartWorkspaceView.tsx
@@ -109,6 +109,8 @@ export interface ChartWorkspaceViewProps {
   marketInfos: import('../hooks/useMarketTicker').MarketInfo[];
   marketLoading: boolean;
   usdRate: number;
+  refreshAllTickers: () => Promise<void>;
+  setMarketSearchOpen: React.Dispatch<React.SetStateAction<boolean>>;
   formalLogin: boolean;
   requireFormalLogin: () => void;
   chartVisible: boolean;
@@ -324,6 +326,7 @@ function ChartWorkspaceViewInner(props: ChartWorkspaceViewProps) {
     snapToIndicator, keepLockedOnDelete, legend, showStats, showWatch,
     showAlert, showObjectTree, percentScale, magnifierActive, showMarketPanel,
     mobileRightOpen, mobileRightTab, marketTickers, marketInfos, marketLoading, usdRate,
+    refreshAllTickers, setMarketSearchOpen,
     formalLogin, requireFormalLogin, chartVisible, menuPage, isMobile,
     indicators, effectiveIndicators, mainChartStyle, showMainChartModal,
     showBulkIndSettings, settingsModalId, ctxToolbar, drawingCtxToolbar,
@@ -453,6 +456,11 @@ function ChartWorkspaceViewInner(props: ChartWorkspaceViewProps) {
             return next;
           });
         }}
+        marketTickers={marketTickers}
+        marketInfos={marketInfos}
+        marketLoading={marketLoading}
+        refreshAllTickers={refreshAllTickers}
+        onMarketSearchOpenChange={setMarketSearchOpen}
         backtestActive={btMatchesChart}
         backtestRunning={btRunning}
         backtestRunningId={undefined}
@@ -539,6 +547,7 @@ function ChartWorkspaceViewInner(props: ChartWorkspaceViewProps) {
           marketInfos={marketInfos}
           loading={marketLoading}
           usdRate={usdRate}
+          refreshAllTickers={refreshAllTickers}
           activeSymbol={layoutDef.count > 1 ? activeSlotSymbol : symbol}
           onSymbolSelect={s => {
             if (layoutDef.count > 1) {
@@ -644,6 +653,10 @@ function ChartWorkspaceViewInner(props: ChartWorkspaceViewProps) {
                 chartRealtimeSource={chartRealtimeSource as 'BACKEND_STOMP' | 'UPBIT_DIRECT'}
                 displayTimezone={displayTimezone}
                 marketTickers={marketTickers}
+                marketInfos={marketInfos}
+                marketLoading={marketLoading}
+                refreshAllTickers={refreshAllTickers}
+                onMarketSearchOpenChange={setMarketSearchOpen}
                 compactMode
                 chartVisible={chartVisible}
                 chartConfigReady={chartConfigReady}
@@ -690,6 +703,10 @@ function ChartWorkspaceViewInner(props: ChartWorkspaceViewProps) {
                     chartRealtimeSource={chartRealtimeSource as 'BACKEND_STOMP' | 'UPBIT_DIRECT'}
                     displayTimezone={displayTimezone}
                     marketTickers={marketTickers}
+                    marketInfos={marketInfos}
+                    marketLoading={marketLoading}
+                    refreshAllTickers={refreshAllTickers}
+                    onMarketSearchOpenChange={setMarketSearchOpen}
                     compactMode
                     chartVisible={chartVisible}
                     chartConfigReady={chartConfigReady}
diff --git a/frontend/src/chart/useChartWorkspace.ts b/frontend/src/chart/useChartWorkspace.ts
index 61dd182..dd32625 100644
--- a/frontend/src/chart/useChartWorkspace.ts
+++ b/frontend/src/chart/useChartWorkspace.ts
@@ -254,6 +254,8 @@ export function useChartWorkspace({
   const [showGrid,     setShowGrid]     = useState(true);
   const [magnifierActive, setMagnifierActive] = useState(false);
   const [showMarketPanel, setShowMarketPanel] = useState(false);
+  /** 종목검색 패널 열림 — 전 종목 ticker loadFull 트리거 */
+  const [marketSearchOpen, setMarketSearchOpen] = useState(false);
   const [mobileRightOpen, setMobileRightOpen] = useState(false);
   const [mobileRightTab, setMobileRightTab] = useState<'trade' | 'orderbook'>('trade');
   const isMobile = useIsMobile();
@@ -587,10 +589,16 @@ export function useChartWorkspace({
   const marketTickerOpts = useMemo(() => ({
     enabled: tickerFeedActive,
     lite: isCompactDevice,
-    loadFull: showMarketPanel && tickerFeedActive,
+    loadFull: tickerFeedActive && (showMarketPanel || marketSearchOpen),
     getPriorityMarkets,
-  }), [tickerFeedActive, isCompactDevice, showMarketPanel, getPriorityMarkets]);
-  const { tickers: marketTickers, marketInfos, loading: marketLoading, usdRate } = useMarketTicker(marketTickerOpts);
+  }), [tickerFeedActive, isCompactDevice, showMarketPanel, marketSearchOpen, getPriorityMarkets]);
+  const {
+    tickers: marketTickers,
+    marketInfos,
+    loading: marketLoading,
+    usdRate,
+    refreshAllTickers,
+  } = useMarketTicker(marketTickerOpts);
   const chartTicker = marketTickers.get(chartSymbol);
   const orderbookPrevClose = chartTicker
     ? (chartTicker.tradePrice ?? 0) - (chartTicker.changePrice ?? 0)
@@ -1977,6 +1985,7 @@ export function useChartWorkspace({
     snapToIndicator, keepLockedOnDelete, legend, showStats, showWatch,
     showAlert, showObjectTree, percentScale, magnifierActive, showMarketPanel,
     mobileRightOpen, mobileRightTab, marketTickers, marketInfos, marketLoading, usdRate,
+    refreshAllTickers, setMarketSearchOpen,
     formalLogin, requireFormalLogin, chartVisible, menuPage,
     isMobile, indicators, effectiveIndicators, mainChartStyle,
     showMainChartModal, showBulkIndSettings, settingsModalId, ctxToolbar,
diff --git a/frontend/src/components/ChartSlot.tsx b/frontend/src/components/ChartSlot.tsx
index befb24b..ea0c1f9 100644
--- a/frontend/src/components/ChartSlot.tsx
+++ b/frontend/src/components/ChartSlot.tsx
@@ -221,6 +221,10 @@ export interface ChartSlotProps {
   onTogglePriceExtremeLabels?: () => void;
   /** 업비트 실시간 티커 맵 (슬롯 심볼별 현재가·등락) */
   marketTickers?: Map<string, TickerData>;
+  marketInfos?: import('../hooks/useMarketTicker').MarketInfo[];
+  marketLoading?: boolean;
+  refreshAllTickers?: () => Promise<void>;
+  onMarketSearchOpenChange?: (open: boolean) => void;
 }
 
 const ChartSlot = forwardRef<ChartSlotHandle, ChartSlotProps>(function ChartSlot({
@@ -253,6 +257,10 @@ const ChartSlot = forwardRef<ChartSlotHandle, ChartSlotProps>(function ChartSlot
   chartPriceExtremeLabelsVisible = false,
   onTogglePriceExtremeLabels,
   marketTickers,
+  marketInfos,
+  marketLoading,
+  refreshAllTickers,
+  onMarketSearchOpenChange,
 }, ref) {
   // ── 전역 지표 파라미터 + 시각 설정 (DB 동기화) ────────────────────────
   const { getParams, saveParams, getVisualConfig, saveVisual } = useIndicatorSettings();
@@ -817,8 +825,9 @@ const ChartSlot = forwardRef<ChartSlotHandle, ChartSlotProps>(function ChartSlot
     setSymbol(s);
     setLegend(null);
     setShowMarket(false);
+    onMarketSearchOpenChange?.(false);
     setSlotAnchorRect(null);
-  }, []);
+  }, [onMarketSearchOpenChange]);
 
   const openMarketSearch = useCallback((e?: React.MouseEvent) => {
     e?.stopPropagation();
@@ -828,11 +837,16 @@ const ChartSlot = forwardRef<ChartSlotHandle, ChartSlotProps>(function ChartSlot
         ? compactNameRef.current
         : (slotContainerRef.current?.closest('.chart-slot') as HTMLElement | null);
       setSlotAnchorRect(anchorEl?.getBoundingClientRect() ?? null);
+      void refreshAllTickers?.();
     } else {
       setSlotAnchorRect(null);
     }
-    setShowMarket(v => !v);
-  }, [compactMode, onActivate, showMarket]);
+    setShowMarket(v => {
+      const next = !v;
+      onMarketSearchOpenChange?.(next);
+      return next;
+    });
+  }, [compactMode, onActivate, showMarket, onMarketSearchOpenChange, refreshAllTickers]);
 
   const displayKoName = compactKoName(symbol);
   const trendUp = compactMode && liveQuote.price != null && liveQuote.isUp;
@@ -957,9 +971,17 @@ const ChartSlot = forwardRef<ChartSlotHandle, ChartSlotProps>(function ChartSlot
           <MarketSearchPanel
             currentMarket={symbol}
             onSelect={s => { handleSymbolSelect(s); }}
-            onClose={() => { setShowMarket(false); setSlotAnchorRect(null); }}
+            onClose={() => {
+              setShowMarket(false);
+              onMarketSearchOpenChange?.(false);
+              setSlotAnchorRect(null);
+            }}
             anchorRect={slotAnchorRect}
             anchorPlacement={compactMode ? 'dropdown' : 'slot'}
+            tickers={marketTickers}
+            marketInfos={marketInfos}
+            marketLoading={marketLoading}
+            refreshAllTickers={refreshAllTickers}
           />,
           document.body,
         )}
diff --git a/frontend/src/components/MarketPanel.tsx b/frontend/src/components/MarketPanel.tsx
index 5ea01de..975d874 100644
--- a/frontend/src/components/MarketPanel.tsx
+++ b/frontend/src/components/MarketPanel.tsx
@@ -28,6 +28,8 @@ export interface MarketPanelProps {
   usdRate:        number;          // KRW per 1 USD (from KRW-USDT)
   activeSymbol:   string;
   onSymbolSelect: (symbol: string) => void;
+  /** 정렬 전 전 종목 시세 재조회 (useMarketTicker.refreshAllTickers) */
+  refreshAllTickers?: () => Promise<void>;
 }
 
 // ─── 가격 포맷 헬퍼 ────────────────────────────────────────────────────────
@@ -50,6 +52,17 @@ function fmtPct(rate: number | null | undefined): string {
   return `${sign}${(rate * 100).toFixed(2)}%`;
 }
 
+function compareNullableNum(
+  a: number | null | undefined,
+  b: number | null | undefined,
+  mul: number,
+): number {
+  if (a == null && b == null) return 0;
+  if (a == null) return 1;
+  if (b == null) return -1;
+  return mul * (a - b);
+}
+
 // ─── 방향 지시자 삼각형 ────────────────────────────────────────────────────
 const ChangeArrow = memo(function ChangeArrow({ change }: { change: ChangeDir }) {
   if (change === 'RISE') return <span className="mp-arrow mp-arrow--rise">▲</span>;
@@ -155,6 +168,7 @@ const MarketRow = memo(function MarketRow({
 // ─── 메인 패널 ─────────────────────────────────────────────────────────────
 export const MarketPanel: React.FC<MarketPanelProps> = ({
   open, tickers, marketInfos, loading, usdRate, activeSymbol, onSymbolSelect,
+  refreshAllTickers,
 }) => {
   const [tab,      setTab]      = useState<Tab>('krw');
   const [search,   setSearch]   = useState('');
@@ -172,8 +186,8 @@ export const MarketPanel: React.FC<MarketPanelProps> = ({
   // 검색 초기화 (탭 전환 시)
   const handleTab = useCallback((t: Tab) => { setTab(t); setSearch(''); }, []);
 
-  // 컬럼 정렬 토글
-  const handleSort = useCallback((key: SortKey) => {
+  // 컬럼 정렬 토글 (시세 기반 정렬 전 전 종목 REST 재조회)
+  const applySortState = useCallback((key: SortKey) => {
     setSortKey(prev => {
       if (prev === key) {
         setSortDir(d => d === 'asc' ? 'desc' : 'asc');
@@ -184,6 +198,15 @@ export const MarketPanel: React.FC<MarketPanelProps> = ({
     });
   }, []);
 
+  const handleSort = useCallback((key: SortKey) => {
+    const needsRefresh = key === 'change' || key === 'price';
+    if (needsRefresh && refreshAllTickers) {
+      void refreshAllTickers().then(() => applySortState(key));
+      return;
+    }
+    applySortState(key);
+  }, [refreshAllTickers, applySortState]);
+
   // 즐겨찾기 토글
   const handleToggleFav = useCallback(async (market: string, e: React.MouseEvent) => {
     e.stopPropagation();
@@ -266,9 +289,9 @@ export const MarketPanel: React.FC<MarketPanelProps> = ({
           return mul * na.localeCompare(nb, 'ko');
         }
         case 'price':
-          return mul * ((ta?.tradePrice ?? 0) - (tb?.tradePrice ?? 0));
+          return compareNullableNum(ta?.tradePrice, tb?.tradePrice, mul);
         case 'change':
-          return mul * ((ta?.changeRate ?? 0) - (tb?.changeRate ?? 0));
+          return compareNullableNum(ta?.changeRate, tb?.changeRate, mul);
         default:
           return 0;
       }
diff --git a/frontend/src/components/MarketSearchPanel.tsx b/frontend/src/components/MarketSearchPanel.tsx
index 4269264..281aaf7 100644
--- a/frontend/src/components/MarketSearchPanel.tsx
+++ b/frontend/src/components/MarketSearchPanel.tsx
@@ -1,35 +1,26 @@
 import React, { useState, useEffect, useCallback, useRef, useMemo } from 'react';
-import { setMarketNames } from '../utils/marketNameCache';
 import {
   getFavorites,
   toggleFavorite,
   FAVORITES_CHANGED_EVENT,
 } from '../utils/marketStorage';
-import { API_BASE } from '../utils/backendApi';
-import { UPBIT_API } from '../utils/upbitApi';
-import { fetchTickersThrottled } from '../utils/upbitTickerFetch';
+import {
+  useMarketTicker,
+  type TickerData,
+  type MarketInfo as HookMarketInfo,
+} from '../hooks/useMarketTicker';
 import { useIsCompactDevice } from '../hooks/useMediaQuery';
 import { safeToFixed } from '../utils/safeFormat';
 import { VirtualScroll } from './common/VirtualScroll';
 
 // ─── Types ───────────────────────────────────────────────────────────────────
-interface MarketInfo {
-  market:       string;   // "KRW-BTC"
-  korean_name:  string;   // "비트코인"
-  english_name: string;   // "Bitcoin"
-  symbol:       string;   // "BTC"
+interface MarketRow {
+  market:       string;
+  korean_name:  string;
+  english_name: string;
+  symbol:       string;
 }
 
-interface TickerInfo {
-  trade_price:          number;
-  signed_change_rate:   number;   // 전일 대비 변화율 (소수, e.g. 0.015 = +1.5%)
-  acc_trade_price_24h:  number;   // 24h 거래대금 (KRW)
-}
-
-// ─── Constants ───────────────────────────────────────────────────────────────
-const TICKER_TTL_DESKTOP = 5000;
-const TICKER_TTL_COMPACT = 25_000;
-
 function formatVol(vol: number | string | null | undefined): string {
   const v = Number(vol);
   if (!Number.isFinite(v)) return '-';
@@ -39,10 +30,24 @@ function formatVol(vol: number | string | null | undefined): string {
   return v.toLocaleString();
 }
 
-function formatChangeRate(raw: number | string | null | undefined): number | null {
-  const rate = Number(raw);
-  if (!Number.isFinite(rate)) return null;
-  return rate * 100;
+function compareNullableNum(
+  a: number | null | undefined,
+  b: number | null | undefined,
+  mul: number,
+): number {
+  if (a == null && b == null) return 0;
+  if (a == null) return 1;
+  if (b == null) return -1;
+  return mul * (a - b);
+}
+
+function hookInfosToRows(infos: HookMarketInfo[]): MarketRow[] {
+  return infos.map(m => ({
+    market: m.market,
+    korean_name: m.koreanName,
+    english_name: m.englishName,
+    symbol: m.market.replace('KRW-', ''),
+  }));
 }
 
 type SortKey = 'name' | 'price' | 'change' | 'volume';
@@ -77,18 +82,36 @@ interface MarketSearchPanelProps {
   addedMarkets?: Set<string>;
   /** 투자대상 최대 개수에 도달 — 미등록 종목 추가 불가 */
   maxTargetsReached?: boolean;
+  /** useMarketTicker 공유 시세 (차트 워크스페이스). 미전달 시 패널 내부 훅 사용 */
+  tickers?: Map<string, TickerData>;
+  marketInfos?: HookMarketInfo[];
+  marketLoading?: boolean;
+  refreshAllTickers?: () => Promise<void>;
 }
 
 export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
   currentMarket, onSelect, onClose, anchorRect, anchorPlacement = 'slot', initialQuery = '',
   variant = 'overlay', query: controlledQuery, onQueryChange,
   actionMode = 'favorite', onAdd, onRemove, addedMarkets, maxTargetsReached = false,
+  tickers: tickersProp, marketInfos: marketInfosProp, marketLoading: marketLoadingProp,
+  refreshAllTickers: refreshProp,
 }) => {
   const embedded = variant === 'embedded';
   const isCompact = useIsCompactDevice();
-  const tickerTtl = isCompact ? TICKER_TTL_COMPACT : TICKER_TTL_DESKTOP;
-  const [markets, setMarkets] = useState<MarketInfo[]>([]);
-  const [tickers, setTickers] = useState<Record<string, TickerInfo>>({});
+  const useExternalFeed = tickersProp != null;
+
+  const internalFeed = useMarketTicker({
+    enabled: !useExternalFeed,
+    loadFull: true,
+  });
+
+  const tickers = tickersProp ?? internalFeed.tickers;
+  const marketInfos = marketInfosProp ?? internalFeed.marketInfos;
+  const loading = marketLoadingProp ?? internalFeed.loading;
+  const refreshAllTickers = refreshProp ?? internalFeed.refreshAllTickers;
+
+  const markets = useMemo(() => hookInfosToRows(marketInfos), [marketInfos]);
+
   const [internalQuery, setInternalQuery] = useState(initialQuery);
   const query = controlledQuery ?? internalQuery;
   const setQuery = useCallback((next: string) => {
@@ -96,7 +119,6 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
     onQueryChange?.(next);
   }, [controlledQuery, onQueryChange]);
   const [favs,    setFavs]    = useState<Set<string>>(() => new Set(getFavorites()));
-  const [loading, setLoading] = useState(true);
   const [sortKey, setSortKey] = useState<SortKey | null>(null);
   const [sortDir, setSortDir] = useState<SortDir>('desc');
 
@@ -104,83 +126,29 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
     setFavs(new Set(getFavorites()));
   }, []);
 
-  const inputRef      = useRef<HTMLInputElement>(null);
-  const tickerTimer   = useRef<ReturnType<typeof setInterval> | null>(null);
-  const marketCodesRef = useRef<string>('');
-
-  // ── 1. 마켓 목록 로드 ─────────────────────────────────────────────────────
-  useEffect(() => {
-    setLoading(true);
-    fetch(`${API_BASE}/markets/all?isDetails=false`)
-      .then(r => {
-        if (!r.ok) return fetch(`${UPBIT_API}/market/all?isDetails=false`);
-        return r;
-      })
-      .then(r => {
-        if (!r.ok) throw new Error(`market/all ${r.status}`);
-        return r.json();
-      })
-      .then((data: Array<{ market: string; korean_name: string; english_name: string }>) => {
-        const krw = data
-          .filter(m => m.market.startsWith('KRW-'))
-          .map(m => ({ ...m, symbol: m.market.replace('KRW-', '') }));
-        setMarkets(krw);
-        marketCodesRef.current = krw.map(m => m.market).join(',');
-
-        // 한글명 캐시 저장 (Toolbar 등에서 사용)
-        const nameMap: Record<string, string> = {};
-        for (const m of krw) nameMap[m.market] = m.korean_name;
-        setMarketNames(nameMap);
-
-        setLoading(false);
-      })
-      .catch(() => setLoading(false));
-
-    if (!embedded) setTimeout(() => inputRef.current?.focus(), 50);
-    refreshFavs();
-  }, [refreshFavs, embedded]);
+  const inputRef = useRef<HTMLInputElement>(null);
 
   useEffect(() => {
     if (controlledQuery === undefined) setInternalQuery(initialQuery);
   }, [initialQuery, controlledQuery]);
 
-  // 좌측 마켓 패널 등에서 관심종목 변경 시 별표 동기화
+  useEffect(() => {
+    if (!embedded) setTimeout(() => inputRef.current?.focus(), 50);
+    refreshFavs();
+  }, [refreshFavs, embedded]);
+
   useEffect(() => {
     const onChanged = () => refreshFavs();
     window.addEventListener(FAVORITES_CHANGED_EVENT, onChanged);
     return () => window.removeEventListener(FAVORITES_CHANGED_EVENT, onChanged);
   }, [refreshFavs]);
 
-  // ── 2. 시세 데이터 폴링 (100개씩 배치 요청) ─────────────────────────────
-  const fetchTickers = useCallback(async () => {
-    const codes = marketCodesRef.current;
-    if (!codes) return;
-    const allCodes = codes.split(',').filter(Boolean);
-    const rawList = await fetchTickersThrottled(allCodes);
-
-    setTickers(prev => {
-      const map: Record<string, TickerInfo> = { ...prev };
-      for (const t of rawList) {
-        const market = (t.market ?? t.code) as string;
-        if (!market) continue;
-        map[market] = {
-          trade_price: t.trade_price,
-          signed_change_rate: t.signed_change_rate,
-          acc_trade_price_24h: t.acc_trade_price_24h,
-        };
-      }
-      return map;
-    });
+  // 패널 마운트 시 전 종목 시세 1회 보장
+  useEffect(() => {
+    void refreshAllTickers();
+  // eslint-disable-next-line react-hooks/exhaustive-deps -- 마운트 1회
   }, []);
 
-  useEffect(() => {
-    if (markets.length === 0) return;
-    fetchTickers();
-    tickerTimer.current = setInterval(fetchTickers, tickerTtl);
-    return () => { if (tickerTimer.current) clearInterval(tickerTimer.current); };
-  }, [markets, fetchTickers, tickerTtl]);
-
-  // ── 3. 즐겨찾기 토글 ─────────────────────────────────────────────────────
   const toggleFav = useCallback(async (market: string, e: React.MouseEvent) => {
     e.stopPropagation();
     const row = markets.find(m => m.market === market);
@@ -220,7 +188,7 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
     tryAddMarket(market);
   }, [tryAddMarket]);
 
-  const handleSort = useCallback((key: SortKey) => {
+  const applySortState = useCallback((key: SortKey) => {
     setSortKey(prev => {
       if (prev === key) {
         setSortDir(d => d === 'asc' ? 'desc' : 'asc');
@@ -231,6 +199,15 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
     });
   }, []);
 
+  const handleSort = useCallback((key: SortKey) => {
+    const needsRefresh = key === 'change' || key === 'price' || key === 'volume';
+    if (needsRefresh) {
+      void refreshAllTickers().then(() => applySortState(key));
+      return;
+    }
+    applySortState(key);
+  }, [refreshAllTickers, applySortState]);
+
   const renderSortHeader = (key: SortKey, label: string, className: string) => {
     const active = sortKey === key;
     return (
@@ -246,7 +223,6 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
     );
   };
 
-  // ── 4. 필터 + 정렬 ───────────────────────────────────────────────────────
   const q = query.trim();
   const filtered = markets.filter(m => {
     if (!q) return true;
@@ -264,8 +240,8 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
         const fa = favs.has(a.market) ? 1 : 0;
         const fb = favs.has(b.market) ? 1 : 0;
         if (fb !== fa) return fb - fa;
-        const va = tickers[a.market]?.acc_trade_price_24h ?? 0;
-        const vb = tickers[b.market]?.acc_trade_price_24h ?? 0;
+        const va = tickers.get(a.market)?.accTradePrice24 ?? 0;
+        const vb = tickers.get(b.market)?.accTradePrice24 ?? 0;
         return vb - va;
       });
     }
@@ -274,36 +250,32 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
       switch (sortKey) {
         case 'name':
           return mul * a.korean_name.localeCompare(b.korean_name, 'ko');
-        case 'price': {
-          const pa = tickers[a.market]?.trade_price ?? 0;
-          const pb = tickers[b.market]?.trade_price ?? 0;
-          return mul * (pa - pb);
-        }
-        case 'change': {
-          const ca = tickers[a.market]?.signed_change_rate ?? 0;
-          const cb = tickers[b.market]?.signed_change_rate ?? 0;
-          return mul * (ca - cb);
-        }
-        case 'volume': {
-          const va = tickers[a.market]?.acc_trade_price_24h ?? 0;
-          const vb = tickers[b.market]?.acc_trade_price_24h ?? 0;
-          return mul * (va - vb);
-        }
+        case 'price':
+          return compareNullableNum(
+            tickers.get(a.market)?.tradePrice,
+            tickers.get(b.market)?.tradePrice,
+            mul,
+          );
+        case 'change':
+          return compareNullableNum(
+            tickers.get(a.market)?.changeRate,
+            tickers.get(b.market)?.changeRate,
+            mul,
+          );
+        case 'volume':
+          return mul * (
+            (tickers.get(a.market)?.accTradePrice24 ?? 0)
+            - (tickers.get(b.market)?.accTradePrice24 ?? 0)
+          );
         default:
           return 0;
       }
     });
   }, [filtered, sortKey, sortDir, favs, tickers]);
 
-  // ── Render ────────────────────────────────────────────────────────────────
-  // anchorRect 제공 시: 슬롯 영역 안에 패널을 위치시킨다.
-  const HEADER_H = 30; // 슬롯 헤더 높이 (약 30px)
+  const HEADER_H = 30;
   const MIN_W    = 260;
-
-  // LWC v5 canvas 레이어가 내부적으로 높은 z-index를 사용하므로
-  // 인라인 스타일로 z-index를 명시해 패널이 항상 최상단에 렌더되게 보장한다.
   const PANEL_Z = 99999;
-
   const DROPDOWN_H = 480;
   const isCompactDropdown = anchorPlacement === 'dropdown' && !embedded;
 
@@ -336,9 +308,8 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
             color:      'var(--text)',
             border:     '1px solid var(--border)',
           }
-      : undefined; // undefined → CSS 기본값(.msp-panel) 그대로 사용
+      : undefined;
 
-  // backdrop: dropdown=전체 화면, slot=해당 슬롯 영역만
   const backdropStyle: React.CSSProperties | undefined = anchorRect
     ? anchorPlacement === 'dropdown'
       ? {
@@ -430,7 +401,6 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
           )}
         </div>
 
-        {/* 목록 — 가상 스크롤 (업비트 전 종목) */}
         {loading ? (
           <div className="msp-list">
             <div className="msp-empty">마켓 목록 로딩 중...</div>
@@ -446,12 +416,14 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
             aria-label="종목 검색 결과"
           >
             {m => {
-              const tk = tickers[m.market];
+              const tk = tickers.get(m.market);
               const isFav = favs.has(m.market);
               const isAdded = addedMarkets?.has(m.market) ?? false;
               const addBlocked = maxTargetsReached && !isAdded;
               const isActive = m.market === currentMarket;
-              const rate = tk ? formatChangeRate(tk.signed_change_rate) : null;
+              const rate = tk?.changeRate != null && Number.isFinite(tk.changeRate)
+                ? tk.changeRate * 100
+                : null;
               const isUp = rate !== null && rate >= 0;
 
               return (
@@ -508,8 +480,8 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
                   {!embedded && (
                     <>
                       <span className="msp-col msp-col-price">
-                        {tk && Number.isFinite(Number(tk.trade_price))
-                          ? Number(tk.trade_price).toLocaleString()
+                        {tk?.tradePrice != null && Number.isFinite(tk.tradePrice)
+                          ? tk.tradePrice.toLocaleString()
                           : '-'}
                       </span>
                       <span className={`msp-col msp-col-change ${rate === null ? '' : isUp ? 'up' : 'down'}`}>
@@ -519,7 +491,7 @@ export const MarketSearchPanel: React.FC<MarketSearchPanelProps> = ({
                       </span>
                       {!isCompactDropdown && (
                         <span className="msp-col msp-col-vol">
-                          {tk?.acc_trade_price_24h ? formatVol(tk.acc_trade_price_24h) : '-'}
+                          {tk?.accTradePrice24 ? formatVol(tk.accTradePrice24) : '-'}
                         </span>
                       )}
                     </>
diff --git a/frontend/src/components/Toolbar.tsx b/frontend/src/components/Toolbar.tsx
index 8f0b68b..29895e7 100644
--- a/frontend/src/components/Toolbar.tsx
+++ b/frontend/src/components/Toolbar.tsx
@@ -13,6 +13,7 @@ import LayoutPicker from './LayoutPicker';
 import TradeAlertPopupMenubarSelect from './TradeAlertPopupMenubarSelect';
 import { DEFAULT_SYNC, type LayoutDef, type SyncOptions } from '../utils/layoutTypes';
 import { loadStrategies } from '../utils/backendApi';
+import type { TickerData, MarketInfo } from '../hooks/useMarketTicker';
 
 interface BtStrategy { id?: number; name: string; source: 'db'; buyCondition?: unknown; sellCondition?: unknown; }
 
@@ -81,6 +82,12 @@ export interface ToolbarProps {
   marketPanelActive?: boolean;
   /** 마켓 패널 토글 */
   onToggleMarketPanel?: () => void;
+  /** useMarketTicker 공유 시세 (종목검색·마켓패널 통합) */
+  marketTickers?: Map<string, TickerData>;
+  marketInfos?: MarketInfo[];
+  marketLoading?: boolean;
+  refreshAllTickers?: () => Promise<void>;
+  onMarketSearchOpenChange?: (open: boolean) => void;
   /** 백테스팅 드롭다운 표시 여부 */
   backtestActive?: boolean;
   /** 백테스팅 실행 콜백 */
@@ -294,6 +301,8 @@ const Toolbar: React.FC<ToolbarProps> = ({
   layoutId = '1', syncOptions = DEFAULT_SYNC, onLayoutSelect, onSyncChange,
   magnifierActive = false, onToggleMagnifier,
   marketPanelActive = false, onToggleMarketPanel,
+  marketTickers, marketInfos, marketLoading, refreshAllTickers,
+  onMarketSearchOpenChange,
   backtestActive = false, onRunBacktest,
   backtestRunning = false, backtestRunningId,
   onOpenBtSettings,
@@ -371,11 +380,21 @@ const Toolbar: React.FC<ToolbarProps> = ({
   }, [showLayout]);
 
   const openMarketSearch = useCallback(() => {
-    setShowMarket(v => !v);
+    setShowMarket(v => {
+      const next = !v;
+      onMarketSearchOpenChange?.(next);
+      if (next) void refreshAllTickers?.();
+      return next;
+    });
     setShowTfMenu(false);
     setShowCtMenu(false);
     setShowIndMenu(false);
-  }, []);
+  }, [onMarketSearchOpenChange, refreshAllTickers]);
+
+  const closeMarketSearch = useCallback(() => {
+    setShowMarket(false);
+    onMarketSearchOpenChange?.(false);
+  }, [onMarketSearchOpenChange]);
 
   return (
     <>
@@ -383,8 +402,12 @@ const Toolbar: React.FC<ToolbarProps> = ({
     {showMarket && (
       <MarketSearchPanel
         currentMarket={symbol}
-        onSelect={s => { onSymbol(s); setShowMarket(false); }}
-        onClose={() => setShowMarket(false)}
+        onSelect={s => { onSymbol(s); closeMarketSearch(); }}
+        onClose={closeMarketSearch}
+        tickers={marketTickers}
+        marketInfos={marketInfos}
+        marketLoading={marketLoading}
+        refreshAllTickers={refreshAllTickers}
       />
     )}
 
diff --git a/frontend/src/hooks/useMarketTicker.ts b/frontend/src/hooks/useMarketTicker.ts
index eb1ef6b..b46fa7a 100644
--- a/frontend/src/hooks/useMarketTicker.ts
+++ b/frontend/src/hooks/useMarketTicker.ts
@@ -10,7 +10,11 @@ import { useState, useEffect, useRef, useCallback } from 'react';
 import { setMarketNames } from '../utils/marketNameCache';
 import { API_BASE } from '../utils/backendApi';
 import { UPBIT_API } from '../utils/upbitApi';
-import { fetchTickersThrottled, type UpbitTickerRaw } from '../utils/upbitTickerFetch';
+import {
+  fetchTickersThrottled,
+  invalidateTickerCache,
+  type UpbitTickerRaw,
+} from '../utils/upbitTickerFetch';
 import { subscribeUpbitWs } from '../utils/upbitWsBroker';
 
 export type ChangeDir = 'RISE' | 'FALL' | 'EVEN';
@@ -218,6 +222,16 @@ export function useMarketTicker(opts: UseMarketTickerOptions = {}) {
     return rawList;
   }, [applyRawList, enabled]);
 
+  /** 전 종목 REST 재조회 (정렬·검색 패널 열림 등) — WS 우선종목과 병행 */
+  const refreshAllTickers = useCallback(async (): Promise<void> => {
+    if (!enabled) return;
+    const all = marketListRef.current;
+    if (all.length === 0) return;
+    invalidateTickerCache(all);
+    await loadTickersFor(all);
+    if (mountedRef.current) fullLoadedRef.current = true;
+  }, [enabled, loadTickersFor]);
+
   const runFullTickerLoad = useCallback(async () => {
     if (!enabled) return;
     const all = marketListRef.current;
@@ -338,5 +352,5 @@ export function useMarketTicker(opts: UseMarketTickerOptions = {}) {
     return () => clearTimeout(t);
   }, [enabled, priorityKey, loadTickersFor, attachWs, priorityList]);
 
-  return { tickers, marketInfos, loading, usdRate };
+  return { tickers, marketInfos, loading, usdRate, refreshAllTickers };
 }
diff --git a/frontend/src/utils/upbitTickerFetch.ts b/frontend/src/utils/upbitTickerFetch.ts
index 51a5a56..3fee0db 100644
--- a/frontend/src/utils/upbitTickerFetch.ts
+++ b/frontend/src/utils/upbitTickerFetch.ts
@@ -195,6 +195,16 @@ async function fetchTickersCore(markets: string[]): Promise<UpbitTickerRaw[]> {
   return stale.length > 0 ? stale : [];
 }
 
+/** 정렬·패널 열림 등 최신 시세가 필요할 때 캐시 무효화 */
+export function invalidateTickerCache(markets?: string[]): void {
+  if (!markets || markets.length === 0) {
+    memoryCache.delete('__all__');
+    return;
+  }
+  memoryCache.delete(cacheKey(markets));
+  memoryCache.delete('__all__');
+}
+
 /**
  * ticker 조회 — 동일 markets 동시 요청 1회로 합침, 캐시·백엔드 우선.
  */