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Volume vs. Lot Size

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jimstow
27
jimstow 2016.01.20 21:45 

I want to trade by a percentage of my account balance but the OrderSend command seems to expect Lot Size. What do I need to do to trade with a percentage of my Account Balance?

Thanks, Jim Stow

Wang Qi
641
Wang Qi 2016.01.21 03:50  

You need to calculate the unit count (volume) from your balance, then convert the unit count to proper lot size.

For example, if the volume is 1250 units, the lot size is (double)1250 / 100000 = 0.01 lot.

whroeder1
14486
whroeder1 2016.01.21 14:33  
  • You place the stop where it needs to be - where the reason for the trade is no longer valid.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 = RISK = |OrderOpenPrice - OrderStopLoss| * OrderLots * DeltaPerlot (Note OOP-OSL includes the SPREAD)
  • 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
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