diff --git a/src/execution/manager.py b/src/execution/manager.py
index 9fd848e..b806016 100644
--- a/src/execution/manager.py
+++ b/src/execution/manager.py
@@ -53,6 +53,17 @@ class ExecutionManager:
             logger.error(f"Failed to place entry order: {e}")
             return False
 
+    def _is_ticker_in_portfolio(self, ticker: str) -> bool:
+        """Helper to check if a ticker currently has an open position."""
+        try:
+            positions = self.client.get_all_open_positions()
+            for pos in positions:
+                if pos.get('ticker') == ticker:
+                    return True
+        except Exception as e:
+            logger.error(f"Error checking portfolio: {e}")
+        return False
+
     def monitor_and_bracket(self, params: Dict[str, Any]):
         """Polls the entry order and places SL/TP once filled."""
         if not self.current_order_id:
@@ -87,6 +98,15 @@ class ExecutionManager:
                     logger.warning(f"Entry order was {status}. Aborting.")
                     return False
             except Exception as e:
+                # Trading212 404s if an order is no longer active (filled or cancelled)
+                if "404" in str(e):
+                    if self._is_ticker_in_portfolio(ticker):
+                        self.is_in_position = True
+                        logger.info(f"Order {self.current_order_id} disappeared but position detected. Assuming filled.")
+                        break
+                    else:
+                        logger.warning(f"Order {self.current_order_id} disappeared and no position found. Assuming cancelled/rejected.")
+                        return False
                 logger.error(f"Error checking order status: {e}")
                 
             time.sleep(10) # Poll every 10 seconds
@@ -118,20 +138,41 @@ class ExecutionManager:
         if not self.is_in_position:
             return False, "", 0.0
             
+        ticker = self.params.get('ticker')
+        
         try:
             if self.tp_order_id:
-                tp_info = self.client.get_order_status(self.tp_order_id)
-                if tp_info.get('status') == "FILLED":
-                    fill_price = tp_info.get('filledPrice', tp_info.get('limitPrice', self.params.get('target_price')))
-                    self.is_in_position = False
-                    return True, "TP Hit", float(fill_price)
+                try:
+                    tp_info = self.client.get_order_status(self.tp_order_id)
+                    if tp_info.get('status') == "FILLED":
+                        fill_price = tp_info.get('filledPrice', tp_info.get('limitPrice', self.params.get('target_price')))
+                        self.is_in_position = False
+                        return True, "TP Hit", float(fill_price)
+                except Exception as e:
+                    if "404" in str(e):
+                        if not self._is_ticker_in_portfolio(ticker):
+                            self.is_in_position = False
+                            logger.info(f"TP order {self.tp_order_id} disappeared and position closed. Assuming TP hit.")
+                            return True, "TP Hit", float(self.params.get('target_price'))
+                    else:
+                        raise e
                     
             if self.sl_order_id:
-                sl_info = self.client.get_order_status(self.sl_order_id)
-                if sl_info.get('status') == "FILLED":
-                    fill_price = sl_info.get('filledPrice', sl_info.get('stopPrice', self.params.get('stop_loss')))
-                    self.is_in_position = False
-                    return True, "SL Hit", float(fill_price)
+                try:
+                    sl_info = self.client.get_order_status(self.sl_order_id)
+                    if sl_info.get('status') == "FILLED":
+                        fill_price = sl_info.get('filledPrice', sl_info.get('stopPrice', self.params.get('stop_loss')))
+                        self.is_in_position = False
+                        return True, "SL Hit", float(fill_price)
+                except Exception as e:
+                    if "404" in str(e):
+                        if not self._is_ticker_in_portfolio(ticker):
+                            self.is_in_position = False
+                            logger.info(f"SL order {self.sl_order_id} disappeared and position closed. Assuming SL hit.")
+                            return True, "SL Hit", float(self.params.get('stop_loss'))
+                    else:
+                        raise e
+                        
         except Exception as e:
             logger.error(f"Error checking exit status: {e}")