diff --git a/.env.example b/.env.example
index 3ceee9b..b735a06 100644
--- a/.env.example
+++ b/.env.example
@@ -80,6 +80,8 @@ LIVE_TRADING_ENABLED=true
 SIM_DEFAULT_MODE=sim
 SIM_INITIAL_EQUITY_USDT=10000
 SIM_INITIAL_USDC=0
+# 实盘初始资金(U);中控收益率=已结算盈亏/该值。不填则中控回退最早余额采样
+LIVE_INITIAL_EQUITY_USDT=
 SIM_FEE_RATE=0.0005
 # =============================================================================
 # OKX 账户 API(永续 + 期权共用同一套密钥;修改后须重启 PM2)
diff --git a/lib/hub/hub_bridge_register.py b/lib/hub/hub_bridge_register.py
index 0f7f886..ee173ac 100644
--- a/lib/hub/hub_bridge_register.py
+++ b/lib/hub/hub_bridge_register.py
@@ -198,11 +198,36 @@ def _enrich_hub_protocol(snap: dict[str, Any], *, app_module: Any) -> dict[str,
     out["pnl"] = {
         "unrealized_usdt": out.get("upl_total_usdc"),
     }
+    initial_cash_usdt = None
+    try:
+        import os
+
+        if mode == "sim":
+            initial_cash_usdt = float(os.getenv("SIM_INITIAL_EQUITY_USDT") or 10000)
+        else:
+            for key in (
+                "LIVE_INITIAL_EQUITY_USDT",
+                "OPTIONS_INITIAL_EQUITY_USDT",
+                "HUB_INITIAL_CASH_USDT",
+            ):
+                raw = (os.getenv(key) or "").strip()
+                if not raw:
+                    continue
+                initial_cash_usdt = float(raw)
+                break
+        if initial_cash_usdt is not None and initial_cash_usdt <= 0:
+            initial_cash_usdt = None
+        elif initial_cash_usdt is not None:
+            initial_cash_usdt = round(float(initial_cash_usdt), 4)
+    except (TypeError, ValueError):
+        initial_cash_usdt = None
+
     out["premium"] = {
         "paid_usdt": premium_usdt,
         "cash_usdt": cash_usdt,
         "equity_usdt": equity_usdt,
         "ratio_pct": ratio_pct,
+        "initial_cash_usdt": initial_cash_usdt,
     }
     out["positions_brief"] = slim_pos
     out["cond_order_locked"] = bool(out.get("cond_order_locked"))