Hi,

I would need help on this one.

I am testing a strategy with a trailing stop. When the trailing stop is active I want to increase the position size by buying one more contract.

I am using the following code but backtests results are exactly the same whether I add it or not:

//Increase position size
IF LONGONMARKET and trailingstart >0 THEN
 BUY 1 CONTRACT AT MARKET
ENDIF

I am using this version of trailing stop:

//trailing stop function
trailingstart = 20 //trailing will start @trailingstart points profit
trailingstep = 5 //trailing step to move the "stoploss"
 
//reset the stoploss value
IF NOT ONMARKET THEN
 newSL=0
ENDIF
 
//manage long positions
IF LONGONMARKET THEN
//first move (breakeven)
 IF newSL=0 AND close-tradeprice(1)>=trailingstart*pipsize THEN
  newSL = tradeprice(1)+trailingstep*pipsize
 ENDIF
//next moves
 IF newSL>0 AND close-newSL>=trailingstep*pipsize THEN
  newSL = newSL+trailingstep*pipsize
 ENDIF
ENDIF
 
//manage short positions
IF SHORTONMARKET THEN
//first move (breakeven)
 IF newSL=0 AND tradeprice(1)-close>=trailingstart*pipsize THEN
  newSL = tradeprice(1)-trailingstep*pipsize
 ENDIF
//next moves
 IF newSL>0 AND newSL-close>=trailingstep*pipsize THEN
  newSL = newSL-trailingstep*pipsize
 ENDIF
ENDIF
 
//stop order to exit the positions
IF newSL>0 THEN
 SELL AT newSL STOP
 EXITSHORT AT newSL STOP
ENDIF

Any idea on how to increasing the size of position while already on market?

Thanks