PeterSt wrote:

JS wrote:

If I interpret it correctly, it is possible a kind of Martingale system where you increase your position after a loss?

Yes, WingYip can hopefully confirm that he buys extra after a loss – I read that too but it could be a typo.

Btw, this is not necessarily Martingale as I just typed a post for this thread (not posted) where I kind of see and show the similarities with what I do myself, and this includes increasing after a loss – and NOT after a win. And this is not a Martingale system at all.

So WingYip – curious ! 🙂

To me the only reason to buy extra when loss is only to find the best reason to reinvest the reasonable little to make the system can carry on reinvest, nothing special, it could add the extra when you win, but in my case, if add extra when win then the system will fail very quickly because it will adding too many or say reinvest too many without blance, so it is just to find the best excuse to reinvest when the system earn, that’s all. Example it can be anything such as when xyz happen then add %. etc. Otherwise just use the none MM vision.

as long as the core system is a overall winner, the money management is a bonus, you can add this code to make sure the system never invest more than your capital, so the system would never stop just because of not enough fund, but again it only base on the core system is a overall “winner”. the leverage 20 is only for IG/ NASDAQ,  you need to use the correct leverage for others.
not a great help compere to all others in here.

once capital = 88888
// Update capital after each trade based on last trade performance
if strategyprofit <> strategyprofit[1] then
capital = capital + (positionperf(1) * positionsize)
endif

// Calculate the maximum allowable position size based on capital, close price, and leverage
maxPositionSize = capital / (close / 20)  // Correctly applying leverage

// Ensure position size does not exceed available capital
if positionsize > maxPositionSize then
positionsize = maxPositionSize * 0.99   // Limit position size to 99% of maximum allowable size
ENDIF

Thank you for your comment, I could be incorrect that PositionPrice(n) is used to track profit or loss in absolute terms based on the specific entry price. However, if you only need the result in percentage terms and already have PositionPerf(n), then PositionPrice(n) is unnecessary, as you can simply use PositionPerf(n) * PositionSize to get the cash value.
PositionSize would be whatever is in your code you set up + any money management to increases it. and this code is only for money management, therefore the PositionSize would never happen in zero (well, at less in my case), otherwise without money management, this code is unnecessary.