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Date/Time: Sun, 02 Feb 2025 16:56:37 +0000

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Post From: ACSIL - trailing stop loss and orders

[2019-09-17 16:04:50]
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MattK - Posts: 42
On my first backtest order, the Trade Activity says:

"Updating move to breakeven stop reference price on parent modification/fill to 2850". The entry is 2850 but it sets the stop at 2846! I don't understand why.

I changed the stop loss part to try and make it tighter but I think it makes it worst. I just can't figure out why...
It's driving me nuts.

// Update the trailing stop loss if the new low is higher than the previous low.
    // Gotta make sure the new stop loss is not lower than the initial one
    NewPossibleStop = currentLow - 2*sc.TickSize;
    
    if (PositionData.PositionQuantity == 1 && currentLow > previousLow && currentHigh > previousHigh && currentStop < NewPossibleStop && NewPossibleStop > orderStop)
    {
      s_SCTradeOrder ExistingOrder;
      if (sc.GetOrderByOrderID(Stop1OrderID, ExistingOrder) != SCTRADING_ORDER_ERROR)
      {
        
        s_SCNewOrder ModifyOrder;
        ModifyOrder.InternalOrderID = Stop1OrderID;
        ModifyOrder.Price1 = NewPossibleStop;

        sc.ModifyOrder(ModifyOrder);
        DebugMessage.Format("Current time: %d:%d", Hour, Minute);
        sc.AddMessageToLog(DebugMessage, 1);
        DebugMessage.Format("Updating stop loss to: %f on entry: %f", NewPossibleStop, orderPrice);
        sc.AddMessageToLog(DebugMessage, 1);
        
        currentStop = currentLow - 2*sc.TickSize;
      }
    }