diff --git a/deploy/profile-scripts/b_td1_v3_scanner.py b/deploy/profile-scripts/b_td1_v3_scanner.py
index 137a5cb0..6c166a62 100644
--- a/deploy/profile-scripts/b_td1_v3_scanner.py
+++ b/deploy/profile-scripts/b_td1_v3_scanner.py
@@ -51,26 +51,30 @@ def load_regime():
 
 
 def mcap_quantile(code):
-    """从 stock_daily 算市值分位（mcap_q 近似）"""
+    """市值分位（mcap_q）：用 stock_fundamentals.mcap_total（总市值，亿元）
+    2026-08-17 修复：原用 stock_daily.amount 成交额不可靠（amount=None 导致全返回0.3缺省，
+    而池条件 mcap_q<0.3 会挡掉所有——扫描0候选的根因）"""
     try:
         conn = sqlite3.connect(str(DB_PATH), timeout=5)
         row = conn.execute(
-            "SELECT amount, close FROM stock_daily WHERE code=? ORDER BY date DESC LIMIT 1",
+            "SELECT mcap_total FROM stock_fundamentals WHERE code=? ORDER BY updated_at DESC LIMIT 1",
             (code,)).fetchone()
+        conn.close()
         if not row or not row[0]:
-            conn.close()
-            return 0.3  # 缺省给中值（放宽）
-        # 全市场今日成交额分位
+            return 0.3  # 缺省中值
+        # 全市场市值分位（用基本面最新 mcap_total 全量）
+        conn = sqlite3.connect(str(DB_PATH), timeout=5)
         rows = conn.execute(
-            "SELECT amount FROM stock_daily WHERE date=(SELECT MAX(date) FROM stock_daily) AND amount IS NOT NULL"
+            "SELECT code, mcap_total FROM stock_fundamentals f WHERE updated_at = "
+            "(SELECT MAX(updated_at) FROM stock_fundamentals f2 WHERE f2.code=f.code)"
         ).fetchall()
         conn.close()
-        amounts = sorted([r[0] for r in rows if r[0]])
-        if not amounts:
+        mcaps = sorted([r[1] for r in rows if r[1] and r[1] > 0])
+        if not mcaps:
             return 0.3
         import bisect
-        pos = bisect.bisect_left(amounts, row[0])
-        return round(pos / max(len(amounts), 1), 2)
+        pos = bisect.bisect_left(mcaps, row[0])
+        return round(pos / max(len(mcaps), 1), 2)
     except Exception:
         return 0.3
 
diff --git a/deploy/profile-scripts/s2_panic_v2_scanner.py b/deploy/profile-scripts/s2_panic_v2_scanner.py
index e9fd4b68..e8773f67 100644
--- a/deploy/profile-scripts/s2_panic_v2_scanner.py
+++ b/deploy/profile-scripts/s2_panic_v2_scanner.py
@@ -56,22 +56,26 @@ def load_mkt_rsi():
 
 
 def mcap_quantile(code):
+    """市值分位（2026-08-17 改用 stock_fundamentals.mcap_total，原 amount 不可靠）"""
     try:
         conn = sqlite3.connect(str(DB_PATH), timeout=5)
         row = conn.execute(
-            "SELECT amount FROM stock_daily WHERE code=? ORDER BY date DESC LIMIT 1", (code,)).fetchone()
+            "SELECT mcap_total FROM stock_fundamentals WHERE code=? ORDER BY updated_at DESC LIMIT 1",
+            (code,)).fetchone()
+        conn.close()
         if not row or not row[0]:
-            conn.close()
             return 0.3
+        conn = sqlite3.connect(str(DB_PATH), timeout=5)
         rows = conn.execute(
-            "SELECT amount FROM stock_daily WHERE date=(SELECT MAX(date) FROM stock_daily) AND amount IS NOT NULL"
+            "SELECT code, mcap_total FROM stock_fundamentals f WHERE updated_at = "
+            "(SELECT MAX(updated_at) FROM stock_fundamentals f2 WHERE f2.code=f.code)"
         ).fetchall()
         conn.close()
-        amounts = sorted([r[0] for r in rows if r[0]])
-        if not amounts:
+        mcaps = sorted([r[1] for r in rows if r[1] and r[1] > 0])
+        if not mcaps:
             return 0.3
         import bisect
-        return round(bisect.bisect_left(amounts, row[0]) / max(len(amounts), 1), 2)
+        return round(bisect.bisect_left(mcaps, row[0]) / max(len(mcaps), 1), 2)
     except Exception:
         return 0.3