diff --git a/ibkr/client.py b/ibkr/client.py
index 6ca6f5a..c662eb6 100644
--- a/ibkr/client.py
+++ b/ibkr/client.py
@@ -143,7 +143,7 @@ class Client:
         while not option_order.isDone():
             self.ib.waitOnUpdate()
  
-        return OptionOrder(option_order)
+        return OptionOrder(option_order, leg_mid)
 
     def submit_spread_order(self, near_leg: OptionLeg, far_leg: OptionLeg) -> OptionOrder:
         near_leg_data = self.get_market_data(self.get_option_contract(near_leg))
@@ -160,7 +160,7 @@ class Client:
         while not spread_order.isDone():
             self.ib.waitOnUpdate()
  
-        return OptionOrder(spread_order)
+        return OptionOrder(spread_order, spread_mid)
 
     def submit_stop_loss_order(self, trade: Trade, stop_loss_price: float, limit_price: float = None) -> Trade:
         stop_loss_order = Order()
diff --git a/ibkr/option_order.py b/ibkr/option_order.py
index 374e2e1..ae7283f 100644
--- a/ibkr/option_order.py
+++ b/ibkr/option_order.py
@@ -2,6 +2,7 @@ from ib_insync import Trade
 
 class OptionOrder:
 
-    def __init__(self, trade_result: Trade):
+    def __init__(self, trade_result: Trade, mid_price: float):
         self.limit_price = abs(trade_result.order.lmtPrice)
-        self.fill_price = abs(trade_result.orderStatus.avgFillPrice)
\ No newline at end of file
+        self.fill_price = abs(trade_result.orderStatus.avgFillPrice)
+        self.mid_price = mid_price
\ No newline at end of file