Need moneymanagement LOT size formula based on SL and Account Risk!

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Hi, i please need a code/ formula which resizes the lot size based on Account Risk % calculated by including the STOPLOSS, and taking in consideration that my account is in EUR.

What i have is this:

extern double RISK=1;  //1% RISK
double LOT;

LOT = NormalizeDouble(AccountEquity()*RISK/10000,2);

But this one doesnt consider the stoploss

So i found this one on google search

lot=NormalizeDouble(AccountBalance( )*MaximumRisk/StopLoss/(MarketInfo(Symbol(), MODE_TICKVALUE)),2);

And this one

lot = Risk * AccountEquity() / MarketInfo(Symbol(), MODE_TICKVALUE) / Stop;

But none of this works, please help me fix them, or give me a better one, thanks!

 
  1. Account Balance * percent = RISK = (OrderOpenPrice - OrderStopLoss)*DIR * OrderLots * DeltaPerlot (Note OOP-OSL includes the SPREAD)
  2. Do NOT use TickValue by itself - DeltaPerlot
  3. You must also check FreeMargin to avoid stop out
  
   double Spread=MarketInfo(Symbol(),MODE_SPREAD)/Q;
   double Risk=(RiskPercent*AccountEquity())/100;//this means if your balance 1000$ & RiskPercent=10% >> you going to risk 100$
   double lot=Risk/((StopLoss+Spread)*MarketInfo(Symbol(),MODE_TICKVALUE)*Q);//Make Sure to Define Your StopLoss & Q=10 in 5 digits or Q=1 in 4 Digits
 
yousefh:, read the comment in my DeltaPerlot. Do NOT use tick value by itself.
 
yousefh:

Sorry its not good

WHRoeder:
  1. Account Balance * percent = RISK = (OrderOpenPrice - OrderStopLoss)*DIR * OrderLots * DeltaPerlot (Note OOP-OSL includes the SPREAD)
  2. Do NOT use TickValue by itself - DeltaPerlot
  3. You must also check FreeMargin to avoid stop out

Ok i see your point, so here is my logic and calculation how i calculate the RISK %


Which in MQL4 code looks like this:

extern double MYSTOPLOSS = 50;  // CUSTOM SL SIZE IN PIPS AFTER THE STOPLEVEL
extern double RISK =2; // 2% ACCOUNT RISK

double LOT =(AccountEquity()*RISK)/(100*(MarketInfo(Symbol(),MODE_STOPLEVEL)+MYSTOPLOSS)* Point *100000 );


A simple 1 liner, nothing complicated, now please help me insert that DELTA stuff that you have been talking about, i know the formula is not complete so please help me.And please note that my account is in EURO so in most cases its the basic currency.

 
Help me please quick, I would like to finish this project before X-mas :)
 
Proximus: Help me please quick, I would like to finish this project before X-mas :)
  1. Lack of Planning
  2. now please help me insert that DELTA stuff
    Did you bother to click on the links provided?
 
WHRoeder:
  2. now please help me insert that DELTA stuff
    Did you bother to click on the links provided?

Yes i did, but i dont understand how you fit that into my equation, you said you need this:

  MarketInfo(pair, MODE_TICKVALUE)
           / MarketInfo(pair, MODE_TICKSIZE)
But i dont understand how this helps my equation, because dividing these two numbers will give a big number instead of the ticksize...
 
Proximus:

Yes i did, but i dont understand how you fit that into my equation, you said you need this:

But i dont understand how this helps my equation, because dividing these two numbers will give a big number instead of the ticksize...

Try this link: https://www.mql5.com/en/forum/148224.

Perhaps looking at it from a different angle might help.

 
ubzen:

Try this link: https://www.mql5.com/en/forum/148224.

Perhaps looking at it from a different angle might help.


WTF guys, shouldnt that be TICKVALUE * TICKSIZE instead of TICKVALUE /TICKSIZE ? I think there is a big mistake there





Just made a quick indicator which shows separate values, i guess the TICKVALUE * TICKSIZE is the appropriate one...


And note the demo account is in EUR so that is the base currency, while i did the same test with a USD account and there the POINT was equivalent to TICKVALUE * TICKSIZE because it measures the quote currency value.

Files:
tickvaluetxqticksize.mq4  2 kb
 

If i have understand the question right this will do the job for you.

for( i=0; i<=ot; i++ ) for( z=0; z<=10; z++ )
      {
         if( long_orders_array_ATF[i][z] > 0 )
         for (zz=0; zz<=10; zz++)
         { 
            OrderSelect(zz,SELECT_BY_POS,MODE_TRADES);
            if (OrderTicket()==long_orders_array_ATF[i][z]) zz=ot+2; 
            if (ot+2<=zz)  
            long_potencial_loss = (OrderLots() * (OrderOpenPrice() - OrderStopLoss()))*100000;
            long_sum_potencial_loss = long_sum_potencial_loss + long_potencial_loss;
         }
      }
...

lot_size = ((((free-long_sum_potencial_loss) * percent_depo)/100.0)/pips)/100000 ; }
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