diff --git a/evolution/b_group_miner.py b/evolution/b_group_miner.py
index 803aa325..f7a5759f 100644
--- a/evolution/b_group_miner.py
+++ b/evolution/b_group_miner.py
@@ -112,17 +112,22 @@ def _simulate_verify(market, regime, panel, cond, tp=20, sl=10, maxh=40):
             if ep <= 0:
                 continue
             res = None
-            for _, fb in fut.iterrows():
+            hold_days = maxh
+            for j, (_, fb) in enumerate(fut.iterrows()):
                 if fb["close"] <= ep * (1 - sl / 100):
                     res = -sl
+                    hold_days = j + 1
                     break
                 if fb["close"] >= ep * (1 + tp / 100):
                     res = tp
+                    hold_days = j + 1
                     break
             if res is None:
                 res = (fut.iloc[-1]["close"] / ep - 1) * 100
+                hold_days = len(fut)
             trades.append(res)
             trade_details.append({"entry_date": str(g.loc[i, "date"]), "pnl_pct": round(res, 2),
+                                  "profit_pct": round(res, 2), "hold_days": hold_days,
                                   "code": str(code)})
     if not trades:
         return None