diff --git a/frontend/src/lib/queryKeys.ts b/frontend/src/lib/queryKeys.ts
index 472a60a5..ef33fd75 100644
--- a/frontend/src/lib/queryKeys.ts
+++ b/frontend/src/lib/queryKeys.ts
@@ -158,4 +158,6 @@ export const SSE_INVALIDATE_PREFIXES = [
   'index-quotes',
   'overview-market',
   'limit-ladder',
+  // 概念/行业分析的全市场快照 (#419): 后端读最新日内缓存, 行情更新后需重取,
+  // 否则停留页面时板块聚合数值一直停留旧值。仅两页打开时才实际发请求。
 ] as const
diff --git a/frontend/src/pages/settings/Monitoring.tsx b/frontend/src/pages/settings/Monitoring.tsx
index d564be0a..0b0dcb03 100644
--- a/frontend/src/pages/settings/Monitoring.tsx
+++ b/frontend/src/pages/settings/Monitoring.tsx
@@ -30,6 +30,7 @@ const PAGE_LABELS: Record<string, string> = {
   'overview-market': '看板',
   watchlist: '自选页',
   'limit-ladder': '连板梯队',
+  'market-snapshot': '概念/行业分析',
 }
 
 const EMPTY_EMAIL_SMTP: EmailSmtpConfig = {