//——-Risk_Money_Management———-
// DrawDown calculation
ONCE Capital = 10000
ONCE MinPoint = Capital
ONCE MaxDD = 0
ONCE LotSize = 1
ONCE Trades = 0
IF OnMarket AND Not OnMarket[1] THEN
Trades = Trades +1
ENDIF
IF StrategyProfit <> 0 AND Trades > 1 THEN
Equity = Capital + StrategyProfit
TempProfit = PositionPerf * PositionPrice / PipSize
TempEquity = Equity + TempProfit
MinPoint = min(MinPoint,TempEquity)
DD = MinPoint - TempEquity
MaxDD = min(MaxDD,DD)
//——————————————
// LARRY WILLIAMS’ formula (+margin)
MinSize = 1 //Minimum lot size allowed
Margin = high / 100 * 0.5 //Margin required 0.5%
Risk = 5 //Risk per trade 2%
TempLotSize = max(MinSize,(Equity * Risk / 100) / (MaxDD + Margin))
LotSize = round((TempLotSize * 10) - 0.5) / 10 //only 1 decimal digit allowed
LotSize = max(MinSize,LotSize)
ENDIF
//LotSize = 1
//——————————————
//—-Backtest——-
p = 20
MyLongConditions = close CROSSES OVER BollingerDOWN[p]
MyShortConditions = close CROSSES UNDER BollingerUP[p]
//MinWidth = 0.01 //max percentage of distance between the two bands
MyBandWidth = BollingerBandWidth[p](close)
upper = bollingerup[p]
lower = bollingerdown[p]
middle = average[p]
BandwidthAbs= upper-lower
BandwidthCentage= (BandwidthAbs/middle)*100
//Bandwidth% should be adjusted based on securities and timeframes
// ATR Profit Target & Stop Loss
Atr = AverageTrueRange[14](Close)
IF MyLongConditions AND Not OnMarket AND BandwidthCentage > 2.00 THEN
BUY LotSize CONTRACTS AT MARKET
SET STOP LOSS Atr
SET TARGET PROFIT Atr * 1.8
//SET TARGET PROFIT Atr * 1.8
ENDIF
IF MyShortConditions AND LongOnMarket AND BandwidthCentage > 2.00 THEN
SELL AT MARKET
ENDIF
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