diff --git a/frontend/src/utils/ChartManager.ts b/frontend/src/utils/ChartManager.ts
index dbef92b..bdc3596 100644
--- a/frontend/src/utils/ChartManager.ts
+++ b/frontend/src/utils/ChartManager.ts
@@ -39,7 +39,7 @@ import { IchimokuCloudPlugin, type IchimokuCloudPoint } from './IchimokuCloudPlu
 
 const MAIN_PRICE_FORMAT = {
   type: 'custom' as const,
-  minMove: 0.001,
+  minMove: 1,
   formatter: formatChartAxisPrice,
 };
 import {
diff --git a/frontend/src/utils/dataGenerator.ts b/frontend/src/utils/dataGenerator.ts
index ab1dc87..9788d27 100644
--- a/frontend/src/utils/dataGenerator.ts
+++ b/frontend/src/utils/dataGenerator.ts
@@ -88,13 +88,13 @@ export function formatPrice(price: number): string {
   return price.toLocaleString('en-US', { minimumFractionDigits: 4, maximumFractionDigits: 6 });
 }
 
-/** 실시간 차트 우측 가격축·크로스헤어 라벨 (10만원 미만: 소수 3자리, 이상: 정수) */
+/** 실시간 차트 우측 가격축·크로스헤어·시리즈 라벨 (KRW 주가 — 소수점 없음) */
 export function formatChartAxisPrice(price: number): string {
   if (!Number.isFinite(price)) return String(price);
-  if (Math.abs(price) >= 100_000) {
-    return price.toLocaleString('en-US', { minimumFractionDigits: 0, maximumFractionDigits: 0 });
-  }
-  return price.toLocaleString('en-US', { minimumFractionDigits: 3, maximumFractionDigits: 3 });
+  return Math.round(price).toLocaleString('en-US', {
+    minimumFractionDigits: 0,
+    maximumFractionDigits: 0,
+  });
 }
 
 export function formatTime(ts: number, timeframe: Timeframe): string {