@PeterSt, what is the issue?

PIPSIZE should be used when you need to deal with both PRICE and PIPS in the same expression. It relieves you of having do do conversions yourself, as the system will take care of it.
IF you want to exit at, say 20 pips less than current LOW, you will have to convert 20 (which is a numeric value) to a price, writing:

SELL AT Low - 20*PipSize STOP   //or LIMIT

because writing:

SELL AT Low - 20 STOP   //or LIMIT

would work for all instruments and assets with a price to pip ratio of 1:1, like indeces, but would fail for currencies (it would subract 20 from 1.01 on fx pair EurUsd).

It should also be used with a division when you have to convert a price into pips:

StopLossPIPS = (close - low) / PipSize  //in EurUsd this will return 40, instead of 0.0040

This code works fine with DAX (Daily chart), without using PIPSIZE; you cannot trade the sime size of CONTRACTS as you do with SHARES, though:

DefParam CumulateOrders = False
ONCE P                = 100
ONCE minLots          = 1
ONCE myInitialCapital = 10000
ONCE myRisk           = 5
ONCE myStopFactor     = 1      //what is this ???
myATR           = averagetruerange[14](close)
myPositionSize = max(minLots,((myInitialCapital + STRATEGYPROFIT) *(myRisk/100))/(myStopFactor*myATR))
IF Not OnMarket THEN
   IF close CROSSES OVER average[P,0](close) THEN
      BUY myPositionSize CONTRACTS AT MARKET
   ELSIF close CROSSES UNDER average[P,0](close) THEN
      SELLSHORT myPositionSize CONTRACTS AT MARKET
   ENDIF
ENDIF
SET TARGET pPROFIT 500
SET STOP   pLOSS   200
graph myPositionSize

Yes, that’s correct.

I don’t know, as I never used it.

It’s not requested by IG (for CFDs), it is requested by PRT (Futures), instead.

I have no idea what’s it all about.

Multiplying by PipSize is used to convert Pips into Price.

I can’t spot any value expressed in pips in your code, though.

Again :

If i take a risk of 50 eur

With a stop at 5 pips

The initial formula gives

Positionsize = 50/0.0005 = 100 000

Then BUY 100 000 would buy 100 000 K so 100 000 000…

So i thought to come back to an “acceptable” position size i needed to multiply by pipsize which is 0.0001

Is it a mistake ?

😀

Sorry,  you know I am french and my English is…frenchy

I meant “Consistent” instead of “acceptable” 😀

i.e. the losses are indeed 50 Eur in backtests so consistent withe the risk I defined initially.

I just hope this formula is then applicable to any forex pair.

Thank you Roberto for all your support.