WL8-Stop-and-Reverse-Question

Yes, I can provide an example when I’m back but in short you just have to issue two PlaceTrades, one Sell and one Short for example, in the same code block.

Here's a template for a simple SAR strategy.

CODE:
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Drawing;
using System.Collections.Generic;

namespace WealthScript6 
{
    public class MyStrategy : UserStrategyBase
    {
        public override void Initialize(BarHistory bars)
        {
         _ma1 = SMA.Series(bars.Close, 20);
         _ma2 = SMA.Series(bars.Close, 50);
         PlotIndicator(_ma1, WLColor.Blue);
         PlotIndicator(_ma2, WLColor.Black);
      }

        public override void Execute(BarHistory bars, int idx)
        {
         double trigger = bars.Close[idx] - 0.35 * (bars.High[idx] - bars.Low[idx]);
         bool enterlong = _ma1.CrossesOver(_ma2, idx);
         bool exitlong = _ma1.CrossesUnder(_ma2, idx);
         
// Alternatively         
//         bool enterlong = _ma1[idx] > _ma2[idx];
//         bool exitlong = _ma1[idx] < _ma2[idx];

         SAR(bars, enterlong, exitlong, OrderType.Stop, trigger);
        }

      //copy and paste this "as is"
      public void SAR(BarHistory bars, bool entryLong, bool exitLong, OrderType orderType, double price = 0)
      {
         //start a position
         if (OpenPositions.Count == 0)
         {
            if (entryLong)
            {
               if (price == 0)               
                  PlaceTrade(bars, TransactionType.Buy, OrderType.Market);               
               else
                  PlaceTrade(bars, TransactionType.Buy, orderType, price);
            }
            else if (exitLong)
            {
               if (price == 0)
                  PlaceTrade(bars, TransactionType.Short, OrderType.Market);
               else
                  PlaceTrade(bars, TransactionType.Short, orderType, price);
            }
         }
         else if (HasOpenPosition(bars, PositionType.Long))
         {
            if (exitLong)
            {
               if (price == 0)
               {
                  PlaceTrade(bars, TransactionType.Sell, OrderType.Market);
                  PlaceTrade(bars, TransactionType.Short, OrderType.Market);
               }
               else
               {
                  PlaceTrade(bars, TransactionType.Sell, orderType, price);
                  PlaceTrade(bars, TransactionType.Short, orderType, price);
               }
            }
         }
         else
         {
            if (entryLong)
            {
               if (price == 0)
               {
                  PlaceTrade(bars, TransactionType.Cover, OrderType.Market);
                  PlaceTrade(bars, TransactionType.Buy, OrderType.Market);
               }
               else
               {
                  PlaceTrade(bars, TransactionType.Cover, orderType, price);
                  PlaceTrade(bars, TransactionType.Buy, orderType, price);
               }
            }
         }
      }

      SMA _ma1;
      SMA _ma2;
    }
}

Great — that did the trick! Thank you for your help.

QUOTE:
Is it possible in WL8 to exit and enter a position on the same bar?

It's possible, but with great confusion. You need to peek ahead at the "future partial bar" to understand what's going on presently, and "peeking" kind of violates the WL paradigm. I would avoid doing that.

What you can do is employ a finer time scale. So instead of using Daily bars, use 30 minute bars instead. And your resulting code will likely be better behaved.

We're discussing SAR enter/exit - Stop And Reverse positions here.
No peeking required. Just see the template above.

Thanks, everyone.

We used MyStrategy as a reference for Claude to correct the SAR logic in our code, but we're now running into issues during live (SIM) testing - errors: boxed position rejections on SAR orders. Since our strategy manages two positions, a target leg and a trailing stop leg.

So, does the symmetric PlaceTrade(Sell) + PlaceTrade(Short) SAR pairing in WL8 also apply to multi-position strategies with tagged positions, where two close-and-open pairs would be submitted simultaneously at the same trigger?

The two exits could get submitted as an OCO (One Cancels Other) order if the broker supports it, what broker are you using?

Thanks, Glitch. We're connected to TradeStation's SIM account.