how calcolate size of 2% equity
- You place the stop where it needs to be - where the reason for the trade is no longer valid. E.g. trading a support bounce the stop goes below the support.
- Account Balance * percent/100 = RISK = OrderLots * (|OrderOpenPrice - OrderStopLoss| * DeltaPerLot + CommissionPerLot) (Note OOP-OSL includes the SPREAD, and DeltaPerLot is usually around $10/pip but it takes account of the exchange rates of the pair vs. your account currency.)
- Do NOT use TickValue by itself - DeltaPerLot
- You must normalize lots
properly and check against min and max.
- You must also check FreeMargin to avoid stop out
Asked again and again and again...
Please do some searches before posting !
https://www.mql5.com/en/search#!keyword=calculate%20lot%20size&module=mql5_module_forum
after read many many topic, i get this code:
{
double pipValue = MarketInfo(Symbol(), MODE_TICKVALUE);
Print("pipValue ",pipValue);
//Print("getPipValue ",getPipValue(""));
double lots = AccountFreeMargin() * Risk / (stopLossInPips * pipValue);
lots = lots/1000;
double lotStep = MarketInfo(Symbol(), MODE_LOTSTEP);
int digits = 0;
if(lotStep <= 0.01)
digits = 2;
else if(lotStep <= 0.1)
digits = 1;
lots = NormalizeDouble(lots, digits);
double stopInMoney = AccountEquity()/100*Risk;
Print("stopInMoney ",stopInMoney);
stopInMoney = NormalizeDouble(stopInMoney,2);
Print("stopInMoney approssiamto ",stopInMoney);
Print("Equity ",AccountEquity()," Risk ", Risk, "%, Risk ",stopInMoney,"€ StopInPips ", stopLossInPips, " Size ", lots);
return (lots);
}
this code work well if my account is in USD but this code is wrong if my account is in Euro.
Example
if i have a AccountEquity = 10.000 $ and stopInPips = 50 and risk = 1%, this code give my a size of 2 minilots <--- CORRECT because i get stop of 100$
but
if i have a AccountEquity = 10.000 euro and stopInPips = 50 and risk = 1%, this code give my a size of 2.1 minilots <--- INCORRECT because i get stop of 89 euro, but i want a stop of 100 euro
I need help, please
after read many many topic, i get this code:
{
double pipValue = MarketInfo(Symbol(), MODE_TICKVALUE);
Print("pipValue ",pipValue);
//Print("getPipValue ",getPipValue(""));
double lots = AccountFreeMargin() * Risk / (stopLossInPips * pipValue);
lots = lots/1000;
double lotStep = MarketInfo(Symbol(), MODE_LOTSTEP);
int digits = 0;
if(lotStep <= 0.01)
digits = 2;
else if(lotStep <= 0.1)
digits = 1;
lots = NormalizeDouble(lots, digits);
double stopInMoney = AccountEquity()/100*Risk;
Print("stopInMoney ",stopInMoney);
stopInMoney = NormalizeDouble(stopInMoney,2);
Print("stopInMoney approssiamto ",stopInMoney);
Print("Equity ",AccountEquity()," Risk ", Risk, "%, Risk ",stopInMoney,"€ StopInPips ", stopLossInPips, " Size ", lots);
return (lots);
}
this code work well if my account is in USD but this code is wrong if my account is in Euro.
Example
if i have a AccountEquity = 10.000 $ and stopInPips = 50 and risk = 1%, this code give my a size of 2 minilots <--- CORRECT because i get stop of 100$
but
if i have a AccountEquity = 10.000 euro and stopInPips = 50 and risk = 1%, this code give my a size of 2.1 minilots <--- INCORRECT because i get stop of 89 euro, but i want a stop of 100 euro
I need help, please
You are mixing pip and tick, that's not the same.
You are mixing free margin and equity, that's not the same.
Why are you dividing by 1000 ?
Anyway, despite all of that the right answer is 2.1 (or 0.21 standard lot).
No idea where your "89 euros" comes from. It could be 99€ as there is some rounding, but certainly not 89, if your stops is really 50 pips.
if i have a AccountEquity = 10.000 $ and stopInPips = 50 and risk = 1%, this code give my a size of 2 minilots <--- CORRECT because i get stop of 100$
but
if i have a AccountEquity = 10.000 euro and stopInPips = 50 and risk = 1%, this code give my a size of 2.1 minilots <--- INCORRECT because i get stop of 89 euro, but i want a stop of 100 euro
- No you don't. If you trade pair X/Y and the account currency is Y, then you get exactly 10 Y per pip per lot. Otherwise exchange rates are involved. Your 89 euro is 100 USD, and your risk is correct . If you used 100 euro you would be risking 30% more!
- Go back to my post #1 and do it right.
- No you don't. If you trade pair X/Y and the account currency is Y, then you get exactly 10 Y per pip per lot. Otherwise exchange rates are involved. Your 89 euro is 100 USD, and your risk is correct . If you used 100 euro you would be risking 30% more!
- Go back to my post #1 and do it right.
whroeder1 the account is 10.000 euro so 89 euro is not the 2 $ of the amount
i dont understand how to change my code
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I wrote the following code, when I go to calculate the size, gives me a size of 14 lots, using a demo account by EUR 5,000 and a stop of 50 pips.
Obviously it is wrong, you tell me how to calculate the correct size?
thank you
//| TestSizeEA.mq4 |
//| Copyright 2015, MetaQuotes Software Corp. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2015, MetaQuotes Software Corp."
#property link "https://www.mql5.com"
#property version "1.00"
#property strict
//+------------------------------------------------------------------+
//| Expert initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
openBuy() ;
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Expert deinitialization function |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
//---
}
//+------------------------------------------------------------------+
//| Expert tick function |
//+------------------------------------------------------------------+
void OnTick()
{
//---
}
void openBuy()
{
double stopLossInPips = 50;
double takeProfitInPips = 75;
int slippage = 3;
int magicNumber = 1;
double pairPipScale = 0.0001;
if (Digits() == 2 || Digits() == 3) pairPipScale = 0.01;
double stopLossInPipsScaled = stopLossInPips*pairPipScale;
double size = getSize(stopLossInPips);
double stopLossPrice = NormalizeDouble(Ask-stopLossInPipsScaled,Digits);
double takeProfitInPipsScaled = takeProfitInPips*pairPipScale;
double takeProfitPrice= NormalizeDouble(Ask+takeProfitInPipsScaled,Digits);
Print("buy Ask: ",Ask," - stopLossPrice: ",stopLossPrice," - takeProfitPrice: ",takeProfitPrice);
double orderTicket = OrderSend(NULL,OP_BUY,size,Ask,slippage,stopLossPrice,takeProfitPrice,"pos1",magicNumber,0,clrGreen);
if(orderTicket<0)
{
Print("OrderSend buy failed with error: ",GetLastError());
}
}
double getSize(double stopLossInPips) {
double maxLossPercent = 2;//rischio per operazione impostato al 2 % dell'equity
double pipValue = MarketInfo(Symbol(),MODE_TICKVALUE);
if (Digits==3 || Digits==5) pipValue *= 10;
double orderSize = NormalizeDouble(AccountEquity() * maxLossPercent / stopLossInPips * pipValue / 100, Digits);
Print("orderSize ",orderSize);
return orderSize;
}