Fixed Equity per Trade [FAE]

Descripton

Summary:
This position sizing script is used to allocate a fixed amount of equity on each trade.

Variables

Type	Identifier	Description
Number	_fixedEquityPerTrade	Use for the fixed amount of equity to invest in a single trade, denominated in the account currency.
Boolean	_enableExitSizing	Use to indicate whether to enable the Fixed Equity per Trade to determine the size of exit orders.

OnInitialize

Use for the fixed amount of equity to invest in a single trade.
Function Parameters
Type	Identifier	Description
Number	fixedEquityPerTrade	Use for the fixed amount of equity to invest in a single trade, denominated in the account currency. [Default 5000]
Boolean	enableExitSizing	Use to indicate whether to enable the Fixed Equity per Trade to determine the size of exit orders. [Default True]
Implementation
' Assign the parameter to a script variable. _fixedEquityPerTrade = fixedEquityPerTrade _enableExitSizing = enableExitSizing

OnPositionSize

Function Parameters
Type	Identifier	Description
Integer	orderIndex
Implementation
' Get the order type. Define typeOrder As Integer = OrderType(orderIndex) ' Get the order symbol index. Define symbolIndex As Integer = OrderSymbolIndex(orderIndex) ' If the order type is an entry order then calculate the position size. If (typeOrder = C_BUY Or _ typeOrder = C_SELL_SHORT) Then Define close As Number = BarClose(symbolIndex) If (close <> 0) Then Return MathFloor(_fixedEquityPerTrade / close) Else Return 0 End If Else If (_enableExitSizing) ' If the order type is an exit order then calculate the position size. Define openPositions() As Integer = PositionIndexList(C_OPEN) For i As Integer = 0 To openPositions.Length - 1 If (PositionSymbolIndex(openPositions(i)) = symbolIndex) Then Return PositionQuantity(openPositions(i)) End If Next End If Return 0