diff --git a/freqtrade/exchange/binance.py b/freqtrade/exchange/binance.py
index d7fb0a353..637bfafef 100644
--- a/freqtrade/exchange/binance.py
+++ b/freqtrade/exchange/binance.py
@@ -153,8 +153,7 @@ class Binance(Exchange):
         stake_amount: float,
         leverage: float,
         wallet_balance: float,  # Or margin balance
-        mm_ex_1: float = 0.0,  # (Binance) Cross only
-        upnl_ex_1: float = 0.0,  # (Binance) Cross only
+        other_trades: list,
     ) -> Optional[float]:
         """
         Important: Must be fetching data from cached values as this is used by backtesting!
@@ -172,6 +171,7 @@ class Binance(Exchange):
         :param wallet_balance: Amount of margin_mode in the wallet being used to trade
             Cross-Margin Mode: crossWalletBalance
             Isolated-Margin Mode: isolatedWalletBalance
+        :param other_trades: List of other open trades in the same wallet
 
         # * Only required for Cross
         :param mm_ex_1: (TMM)
@@ -180,15 +180,31 @@ class Binance(Exchange):
         :param upnl_ex_1: (UPNL)
             Cross-Margin Mode: Unrealized PNL of all other contracts, excluding Contract 1.
             Isolated-Margin Mode: 0
+        :param other
         """
-
-        side_1 = -1 if is_short else 1
-        cross_vars = upnl_ex_1 - mm_ex_1 if self.margin_mode == MarginMode.CROSS else 0.0
+        cross_vars: float = 0.0
 
         # mm_ratio: Binance's formula specifies maintenance margin rate which is mm_ratio * 100%
         # maintenance_amt: (CUM) Maintenance Amount of position
         mm_ratio, maintenance_amt = self.get_maintenance_ratio_and_amt(pair, stake_amount)
 
+        if self.margin_mode == MarginMode.CROSS:
+            mm_ex_1: float = 0.0
+            upnl_ex_1: float = 0.0
+            for trade in other_trades:
+                mm_ratio1, maint_amnt1 = self.get_maintenance_ratio_and_amt(
+                    trade["pair"], trade["stake_amount"]
+                )
+                maint_margin = trade["amount"] * trade["mark_price"] * mm_ratio1 - maint_amnt1
+                mm_ex_1 += maint_margin
+
+                upnl_ex_1 += (
+                    trade["amount"] * trade["mark_price"] - trade["amount"] * trade["open_rate"]
+                )
+            cross_vars = upnl_ex_1 - mm_ex_1
+
+        side_1 = -1 if is_short else 1
+
         if maintenance_amt is None:
             raise OperationalException(
                 "Parameter maintenance_amt is required by Binance.liquidation_price"
diff --git a/freqtrade/exchange/bybit.py b/freqtrade/exchange/bybit.py
index 719c64dc3..c14273e53 100644
--- a/freqtrade/exchange/bybit.py
+++ b/freqtrade/exchange/bybit.py
@@ -147,8 +147,7 @@ class Bybit(Exchange):
         stake_amount: float,
         leverage: float,
         wallet_balance: float,  # Or margin balance
-        mm_ex_1: float = 0.0,  # (Binance) Cross only
-        upnl_ex_1: float = 0.0,  # (Binance) Cross only
+        other_trades: list,
     ) -> Optional[float]:
         """
         Important: Must be fetching data from cached values as this is used by backtesting!
@@ -178,6 +177,7 @@ class Bybit(Exchange):
         :param wallet_balance: Amount of margin_mode in the wallet being used to trade
             Cross-Margin Mode: crossWalletBalance
             Isolated-Margin Mode: isolatedWalletBalance
+        :param other_trades: List of other open trades in the same wallet
         """
 
         market = self.markets[pair]
diff --git a/freqtrade/exchange/exchange.py b/freqtrade/exchange/exchange.py
index 9d84f59e4..83aff2def 100644
--- a/freqtrade/exchange/exchange.py
+++ b/freqtrade/exchange/exchange.py
@@ -3532,8 +3532,7 @@ class Exchange:
         stake_amount: float,
         leverage: float,
         wallet_balance: float,
-        mm_ex_1: float = 0.0,  # (Binance) Cross only
-        upnl_ex_1: float = 0.0,  # (Binance) Cross only
+        other_trades: list,
     ) -> Optional[float]:
         """
         Set's the margin mode on the exchange to cross or isolated for a specific pair
@@ -3555,8 +3554,7 @@ class Exchange:
                 leverage=leverage,
                 stake_amount=stake_amount,
                 wallet_balance=wallet_balance,
-                mm_ex_1=mm_ex_1,
-                upnl_ex_1=upnl_ex_1,
+                other_trades=other_trades,
             )
         else:
             positions = self.fetch_positions(pair)
@@ -3582,8 +3580,7 @@ class Exchange:
         stake_amount: float,
         leverage: float,
         wallet_balance: float,  # Or margin balance
-        mm_ex_1: float = 0.0,  # (Binance) Cross only
-        upnl_ex_1: float = 0.0,  # (Binance) Cross only
+        other_trades: list,
     ) -> Optional[float]:
         """
         Important: Must be fetching data from cached values as this is used by backtesting!
@@ -3608,10 +3605,7 @@ class Exchange:
         :param wallet_balance: Amount of margin_mode in the wallet being used to trade
             Cross-Margin Mode: crossWalletBalance
             Isolated-Margin Mode: isolatedWalletBalance
-
-        # * Not required by Gate or OKX
-        :param mm_ex_1:
-        :param upnl_ex_1:
+        :param other_trades: List of other open trades in the same wallet
         """
 
         market = self.markets[pair]