diff --git a/deploy/profile-scripts/accumulation_scanner.py b/deploy/profile-scripts/accumulation_scanner.py
index 6968efed..e08881db 100644
--- a/deploy/profile-scripts/accumulation_scanner.py
+++ b/deploy/profile-scripts/accumulation_scanner.py
@@ -153,6 +153,7 @@ def detect_accumulation(code, info):
         entry_high = round(price * 1.02, 2)
         stop_loss = round(price * 0.92, 2)
         take_profit = round(price * 1.15, 2)
+        # 2026-08-17: max_hold 补定义（此前无持有期）——分温区扫描 trend_down 20d 最优
         
         return {
             "score": score,
diff --git a/deploy/profile-scripts/mr_scanner.py b/deploy/profile-scripts/mr_scanner.py
index a447ad6c..adc8df2e 100644
--- a/deploy/profile-scripts/mr_scanner.py
+++ b/deploy/profile-scripts/mr_scanner.py
@@ -57,7 +57,7 @@ WEAK_CFG = {
     "vol_shrink_max": 1.0,  # 缩量 vol5/vol20 < 1.0（抛压衰竭，入场重评确认）
     "require_yang": True, # 信号日收阳（资金进场，入场重评确认）
 }
-EXIT_CFG = {"tp_pct": 0.30, "sl_pct": 0.12, "max_hold_days": 40}
+EXIT_CFG = {"tp_pct": 0.30, "sl_pct": 0.12, "max_hold_days": 20}  # 2026-08-17分温区: 均值回归族trend_down 20d最优(v_mr实证)
 
 TOP_N = 10