diff --git a/scripts/per_stock_reassess.py b/scripts/per_stock_reassess.py
index 24387b05..cdcde897 100644
--- a/scripts/per_stock_reassess.py
+++ b/scripts/per_stock_reassess.py
@@ -94,28 +94,30 @@ def main():
                 price = entry.get("current_price") or entry.get("price") or 0
 
             # Price diff debounce: skip reassessment if price changed < 1% since last update
-            last_price = entry.get("last_reassessed_price", 0)
+            last_price = entry.get("last_reassessed_price") or 0
             if last_price > 0 and price > 0:
                 diff_pct = abs(price - last_price) / last_price * 100
                 if diff_pct < 1.0:
                     print(f"  价差仅{diff_pct:.2f}% (<1%)，跳过重评（上次价={last_price}，现价={price}）")
                     skipped += 1
                     continue
+            # 打印参数调试
+            print(f"  DEBUG: code={code} name={entry.get('name','')} price={price} cost={entry.get('cost')} shares={entry.get('shares')} action={entry.get('action','')[:30]} is_wl={entry.get('type','') in ('自选策略','watchlist')}", flush=True)
             result = reassess_strategy(
                 code=code,
                 name=entry.get("name", ""),
-                price=price,
-                cost=entry.get("cost", 0),
-                shares=entry.get("shares", 0),
+                price=price or 0,
+                cost=entry.get("cost") or 0,
+                shares=entry.get("shares") or 0,
                 current_action=entry.get("action", ""),
                 is_watchlist=entry.get("type", "") in ("自选策略", "watchlist"),
             )
             if result and result.get("action"):
                 # 持仓股止损不下移（移动止损规则）：已有仓位的止损只上不下
-                is_held = entry.get("cost", 0) > 0 and entry.get("shares", 0) > 0 and \
+                is_held = (entry.get("cost") or 0) > 0 and (entry.get("shares") or 0) > 0 and \
                           entry.get("type", "") not in ("自选策略", "watchlist")
-                old_stop = entry.get("stop_loss", 0)
-                new_stop = result.get("stop_loss", 0)
+                old_stop = entry.get("stop_loss") or 0
+                new_stop = result.get("stop_loss") or 0
                 if is_held and old_stop > 0 and new_stop > 0 and new_stop < old_stop:
                     print(f"  移动止损保护: {new_stop}→保持{old_stop} (持仓止损不下移)")
                     result["stop_loss"] = old_stop
@@ -202,6 +204,8 @@ def main():
                 ok += 1
         except Exception as e:
             print(f"[ERROR] {code}: {e}", file=sys.stderr)
+            import traceback
+            traceback.print_exc(file=sys.stderr)
             errors += 1
 
     # 同步自选股更新回 watchlist_stocks 表（持仓策略已通过 write_holding_strategy 写入 DB）