Amibroker AFL code for Volatility Breakout with Bollinger Bands:
Script:
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// Formula Name: Volatility Breakout with Bollinger Bands
// For more scripts, visit: www.marketsecrets.in
//
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// This Tradingsystem gives buy and short signals when after Bollinger Bands
// got very narrow they spread out and the Close touches the band (top or
// bottom). Additionally the MFI has to confirm this volatility breakout. But
// please be carefull because some stock suddenly change direction and in this
// case the really change! For more information please read “Bollinger on
// Bollinger Bands”.
//
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Band= (BBandTop( C, 20, 2 ) – BBandBot( C, 20, 2)) / MA(Close, 20 ) * 100;
B= ((Close – BBandBot( Close, 20, 2 )) / (BBandTop( Close, 20, 2 ) – BBandBot( Close, 20, 2 ))) * 100;
Buy = band < 15 AND b > 95 AND MFI(10) > 60;
Sell = Cross(Close,SAR(0.01,0.2));
Short = band < 15 AND b < 5 AND MFI(10) < 40;
Cover = Cross(SAR(0.01,0.2), Close);
Filter = (band < 15 AND b > 95 AND MFI(10) > 60) OR (band < 15 AND b < 5 AND MFI(10) < 40);
NumColumns = 1;
Column0 = Close;