diff --git a/src/frontend/src/components/QuantDataGrid.vue b/src/frontend/src/components/QuantDataGrid.vue
index 495f8fb6..35452a56 100644
--- a/src/frontend/src/components/QuantDataGrid.vue
+++ b/src/frontend/src/components/QuantDataGrid.vue
@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { ref, computed } from 'vue';
 import { AgGridVue } from 'ag-grid-vue3';
+import GridHeaderToolbar from './grid/GridHeaderToolbar.vue';
 import type { ColDef, GridApi, GridReadyEvent, CellValueChangedEvent, RowSelectionOptions } from 'ag-grid-community';
 
 const props = defineProps<{
@@ -12,13 +13,8 @@ const props = defineProps<{
 
 const emit = defineEmits(['row-selected', 'cell-value-changed', 'cell-double-clicked']);
 const gridApi = ref<GridApi | null>(null);
-
-const onCellDoubleClicked = (event: any) => {
-  emit('cell-double-clicked', event);
-};
 const selectedCount = ref(0);
 const quickFilterText = ref('');
-const isExportMenuOpen = ref(false);
 
 // AG Grid v36 rowSelection deprecation 대응
 const normalizedRowSelection = computed<RowSelectionOptions>(() => {
@@ -43,6 +39,10 @@ const onSelectionChanged = () => {
   emit('row-selected', selectedRowPayload(selectedData));
 };
 
+const onCellDoubleClicked = (event: any) => {
+  emit('cell-double-clicked', event);
+};
+
 const selectedRowPayload = (selectedData: any[]) => {
   if (props.rowSelection === 'multiple' || (typeof props.rowSelection === 'object' && props.rowSelection?.mode === 'multiRow')) {
     return selectedData;
@@ -68,7 +68,6 @@ const autoSizeColumns = () => {
 
 const exportToCsv = () => {
   if (!gridApi.value) return;
-  isExportMenuOpen.value = false;
   gridApi.value.exportDataAsCsv({
     fileName: `${props.filename || 'quant_grid_export'}_${new Date().toISOString().substring(0, 10)}.csv`
   });
@@ -79,52 +78,16 @@ defineExpose({ exportToExcel: exportToCsv, resetGridState, autoSizeColumns, grid
 
 <template>
   <div class="quant-grid-masterpiece-container flex flex-col h-full w-full border border-slate-300 bg-white rounded-md overflow-hidden shadow-sm">
-    <!-- Premium Trading-Room Data Grid Header Toolbar -->
-    <div class="grid-header-toolbar">
-      <div class="header-left-info">
-        <span class="grid-badge total-badge">
-          📊 총 <strong>{{ rowData.length }}</strong> 건
-        </span>
-        <span class="grid-badge selected-badge" :class="{ active: selectedCount > 0 }">
-          ✅ 선택 <strong>{{ selectedCount }}</strong> 건
-        </span>
-        <span class="grid-badge col-count-badge">
-          📐 컬럼 <strong>{{ columnDefs.length }}</strong> 개
-        </span>
-      </div>
-
-      <div class="header-right-actions">
-        <!-- 렌즈 퀵 필터 검색창 -->
-        <div class="quick-search-box">
-          <span class="search-icon">🔍</span>
-          <input 
-            type="text" 
-            v-model="quickFilterText" 
-            placeholder="그리드 즉시 필터..." 
-            class="quick-search-input"
-          />
-        </div>
-
-        <button class="grid-btn btn-reset" @click="resetGridState" title="필터/정렬 초기화">
-          🔄 초기화
-        </button>
-
-        <button class="grid-btn btn-autosize" @click="autoSizeColumns" title="컬럼 너비 자동 맞춤">
-          📐 자동 맞춤
-        </button>
-
-        <!-- 엑셀 내보내기 팝오버 -->
-        <div class="export-popover-wrapper">
-          <button class="grid-btn btn-export" @click="isExportMenuOpen = !isExportMenuOpen">
-            📥 엑셀 내보내기 ▼
-          </button>
-          <div v-if="isExportMenuOpen" class="export-dropdown-menu">
-            <button @click="exportToCsv">📄 CSV 파일 (.csv) 내보내기</button>
-            <button @click="exportToCsv">📊 Excel 호환 (.xlsx) 내보내기</button>
-          </div>
-        </div>
-      </div>
-    </div>
+    <!-- Componentized Grid Header Toolbar (GridHeaderToolbar) -->
+    <GridHeaderToolbar 
+      v-model:quickFilterText="quickFilterText"
+      :totalCount="rowData.length"
+      :selectedCount="selectedCount"
+      :columnCount="columnDefs.length"
+      @reset="resetGridState"
+      @autoSize="autoSizeColumns"
+      @exportCsv="exportToCsv"
+    />
 
     <!-- AG Grid Container (v36 legacy theme & object rowSelection) -->
     <div class="flex-1 ag-theme-alpine w-full">
@@ -152,125 +115,6 @@ defineExpose({ exportToExcel: exportToCsv, resetGridState, autoSizeColumns, grid
 </template>
 
 <style scoped>
-.grid-header-toolbar {
-  background: linear-gradient(135deg, #1E293B, #0F172A);
-  color: white;
-  padding: 6px 12px;
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  border-bottom: 1px solid #334155;
-  font-size: 0.75rem;
-}
-
-.header-left-info {
-  display: flex;
-  align-items: center;
-  gap: 6px;
-}
-
-.grid-badge {
-  font-size: 0.7rem;
-  padding: 2px 8px;
-  border-radius: 4px;
-  font-weight: 700;
-  display: flex;
-  align-items: center;
-  gap: 4px;
-}
-
-.total-badge { background: #334155; color: #E2E8F0; }
-.selected-badge { background: #475569; color: #94A3B8; }
-.selected-badge.active { background: #166534; color: #DCFCE7; }
-.col-count-badge { background: #1E3A8A; color: #BFDBFE; }
-
-.header-right-actions {
-  display: flex;
-  align-items: center;
-  gap: 6px;
-}
-
-.quick-search-box {
-  position: relative;
-  display: flex;
-  align-items: center;
-}
-
-.search-icon {
-  position: absolute;
-  left: 6px;
-  font-size: 0.65rem;
-}
-
-.quick-search-input {
-  background: #334155;
-  color: white;
-  border: 1px solid #475569;
-  border-radius: 4px;
-  padding: 3px 6px 3px 22px;
-  font-size: 0.7rem;
-  width: 140px;
-  outline: none;
-}
-
-.quick-search-input::placeholder { color: #94A3B8; }
-.quick-search-input:focus { border-color: #3B82F6; background: #1E293B; }
-
-.grid-btn {
-  padding: 3px 8px;
-  font-size: 0.7rem;
-  font-weight: 700;
-  border: none;
-  border-radius: 4px;
-  cursor: pointer;
-  color: white;
-  display: flex;
-  align-items: center;
-  gap: 3px;
-}
-
-.btn-reset { background: #475569; }
-.btn-reset:hover { background: #64748B; }
-
-.btn-autosize { background: #2563EB; }
-.btn-autosize:hover { background: #1D4ED8; }
-
-.btn-export { background: #166534; }
-.btn-export:hover { background: #15803D; }
-
-.export-popover-wrapper { position: relative; }
-
-.export-dropdown-menu {
-  position: absolute;
-  top: 100%;
-  right: 0;
-  margin-top: 4px;
-  background: white;
-  border: 1px solid #CBD5E1;
-  border-radius: 4px;
-  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
-  display: flex;
-  flex-direction: column;
-  z-index: 100;
-  width: 160px;
-}
-
-.export-dropdown-menu button {
-  padding: 8px 12px;
-  background: none;
-  border: none;
-  text-align: left;
-  font-size: 0.75rem;
-  font-weight: 700;
-  color: #334155;
-  cursor: pointer;
-}
-
-.export-dropdown-menu button:hover {
-  background: #F1F5F9;
-  color: #2563EB;
-}
-
 .ag-theme-alpine {
   --ag-header-background-color: #f8f9fa;
   --ag-selected-row-background-color: rgba(41, 128, 185, 0.1);
diff --git a/src/frontend/src/components/grid/GridHeaderToolbar.vue b/src/frontend/src/components/grid/GridHeaderToolbar.vue
new file mode 100644
index 00000000..ff95fc8d
--- /dev/null
+++ b/src/frontend/src/components/grid/GridHeaderToolbar.vue
@@ -0,0 +1,173 @@
+<!-- GridHeaderToolbar.vue -->
+<script setup lang="ts">
+import { ref } from 'vue'
+
+const props = defineProps<{
+  totalCount: number;
+  selectedCount: number;
+  columnCount: number;
+  quickFilterText: string;
+}>();
+
+const emit = defineEmits<{
+  (e: 'update:quickFilterText', val: string): void;
+  (e: 'reset'): void;
+  (e: 'autoSize'): void;
+  (e: 'exportCsv'): void;
+}>();
+
+const isExportMenuOpen = ref(false);
+
+const handleExport = () => {
+  isExportMenuOpen.value = false;
+  emit('exportCsv');
+};
+</script>
+
+<template>
+  <div class="grid-header-toolbar">
+    <div class="header-left-info">
+      <span class="grid-badge total-badge">
+        📊 총 <strong>{{ totalCount }}</strong> 건
+      </span>
+      <span class="grid-badge selected-badge" :class="{ active: selectedCount > 0 }">
+        ✅ 선택 <strong>{{ selectedCount }}</strong> 건
+      </span>
+      <span class="grid-badge col-count-badge">
+        📐 컬럼 <strong>{{ columnCount }}</strong> 개
+      </span>
+    </div>
+
+    <div class="header-right-actions">
+      <!-- 렌즈 퀵 필터 검색창 -->
+      <div class="quick-search-box">
+        <span class="search-icon">🔍</span>
+        <input 
+          type="text" 
+          :value="quickFilterText" 
+          @input="emit('update:quickFilterText', ($event.target as HTMLInputElement).value)"
+          placeholder="그리드 즉시 필터..." 
+          class="quick-search-input"
+        />
+      </div>
+
+      <button class="grid-btn btn-reset" @click="emit('reset')" title="필터/정렬 초기화">
+        🔄 초기화
+      </button>
+
+      <button class="grid-btn btn-autosize" @click="emit('autoSize')" title="컬럼 너비 자동 맞춤">
+        📐 자동 맞춤
+      </button>
+
+      <!-- 엑셀 내보내기 팝오버 -->
+      <div class="export-popover-wrapper">
+        <button class="grid-btn btn-export" @click="isExportMenuOpen = !isExportMenuOpen">
+          📥 엑셀 내보내기 ▼
+        </button>
+        <div v-if="isExportMenuOpen" class="export-dropdown-menu">
+          <button @click="handleExport">📄 CSV 파일 (.csv) 내보내기</button>
+          <button @click="handleExport">📊 Excel 호환 (.xlsx) 내보내기</button>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.grid-header-toolbar {
+  background: linear-gradient(135deg, #1E293B, #0F172A);
+  color: white;
+  padding: 6px 12px;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  border-bottom: 1px solid #334155;
+  font-size: 0.75rem;
+}
+
+.header-left-info { display: flex; align-items: center; gap: 6px; }
+
+.grid-badge {
+  font-size: 0.7rem;
+  padding: 2px 8px;
+  border-radius: 4px;
+  font-weight: 700;
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.total-badge { background: #334155; color: #E2E8F0; }
+.selected-badge { background: #475569; color: #94A3B8; }
+.selected-badge.active { background: #166534; color: #DCFCE7; }
+.col-count-badge { background: #1E3A8A; color: #BFDBFE; }
+
+.header-right-actions { display: flex; align-items: center; gap: 6px; }
+
+.quick-search-box { position: relative; display: flex; align-items: center; }
+.search-icon { position: absolute; left: 6px; font-size: 0.65rem; }
+
+.quick-search-input {
+  background: #334155;
+  color: white;
+  border: 1px solid #475569;
+  border-radius: 4px;
+  padding: 3px 6px 3px 22px;
+  font-size: 0.7rem;
+  width: 140px;
+  outline: none;
+}
+
+.quick-search-input::placeholder { color: #94A3B8; }
+.quick-search-input:focus { border-color: #3B82F6; background: #1E293B; }
+
+.grid-btn {
+  padding: 3px 8px;
+  font-size: 0.7rem;
+  font-weight: 700;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+  color: white;
+  display: flex;
+  align-items: center;
+  gap: 3px;
+}
+
+.btn-reset { background: #475569; }
+.btn-reset:hover { background: #64748B; }
+.btn-autosize { background: #2563EB; }
+.btn-autosize:hover { background: #1D4ED8; }
+.btn-export { background: #166534; }
+.btn-export:hover { background: #15803D; }
+
+.export-popover-wrapper { position: relative; }
+
+.export-dropdown-menu {
+  position: absolute;
+  top: 100%;
+  right: 0;
+  margin-top: 4px;
+  background: white;
+  border: 1px solid #CBD5E1;
+  border-radius: 4px;
+  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
+  display: flex;
+  flex-direction: column;
+  z-index: 100;
+  width: 160px;
+}
+
+.export-dropdown-menu button {
+  padding: 8px 12px;
+  background: none;
+  border: none;
+  text-align: left;
+  font-size: 0.75rem;
+  font-weight: 700;
+  color: #334155;
+  cursor: pointer;
+}
+
+.export-dropdown-menu button:hover { background: #F1F5F9; color: #2563EB; }
+</style>
diff --git a/src/frontend/src/components/grid/ReturnChip.vue b/src/frontend/src/components/grid/ReturnChip.vue
new file mode 100644
index 00000000..cb4f9ee2
--- /dev/null
+++ b/src/frontend/src/components/grid/ReturnChip.vue
@@ -0,0 +1,38 @@
+<!-- ReturnChip.vue -->
+<script setup lang="ts">
+import { computed } from 'vue'
+
+const props = defineProps<{
+  value?: number | null;
+}>();
+
+const chipClass = computed(() => {
+  if (props.value === undefined || props.value === null || props.value === 0) return 'zero';
+  return props.value > 0 ? 'pos' : 'neg';
+});
+
+const formattedText = computed(() => {
+  if (props.value === undefined || props.value === null || props.value === 0) return '0.00%';
+  const prefix = props.value > 0 ? '+' : '';
+  return `${prefix}${props.value}%`;
+});
+</script>
+
+<template>
+  <span class="return-chip" :class="chipClass">
+    {{ formattedText }}
+  </span>
+</template>
+
+<style scoped>
+.return-chip {
+  padding: 2px 6px;
+  border-radius: 4px;
+  font-size: 0.7rem;
+  font-weight: 700;
+}
+
+.return-chip.pos { background: #DCFCE7; color: #15803D; }
+.return-chip.neg { background: #FEE2E2; color: #B91C1C; }
+.return-chip.zero { background: #F1F5F9; color: #64748B; }
+</style>
diff --git a/src/frontend/src/components/grid/TickerBadge.vue b/src/frontend/src/components/grid/TickerBadge.vue
new file mode 100644
index 00000000..9a871f2e
--- /dev/null
+++ b/src/frontend/src/components/grid/TickerBadge.vue
@@ -0,0 +1,38 @@
+<!-- TickerBadge.vue -->
+<script setup lang="ts">
+defineProps<{
+  ticker?: string;
+  symbolName?: string;
+  fallbackKey?: string;
+}>();
+</script>
+
+<template>
+  <div class="ticker-badge-wrapper">
+    <span v-if="ticker" class="ticker-badge">{{ ticker }}</span>
+    <strong class="symbol-name">{{ symbolName || fallbackKey }}</strong>
+  </div>
+</template>
+
+<style scoped>
+.ticker-badge-wrapper {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.ticker-badge {
+  background: #1E293B;
+  color: #F1F5F9;
+  padding: 1px 5px;
+  border-radius: 3px;
+  font-size: 0.65rem;
+  font-weight: 700;
+  font-family: monospace;
+}
+
+.symbol-name {
+  font-weight: 700;
+  color: #1E293B;
+}
+</style>