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B = %% relative (to BB_width) distance from BB bottom to current
Close::
B = (Close - BB_bottom)/BB_width,
where
BB width = BB_top - BB_bottom.
The code says buy when Close to BB_bottom distance exceeds 95%
of the band width (plus some other conditions met, such that the BB
width is small and money flows into the issue), so that the price
seems to be breaking out of the range.
cheers-- alex
--- In amibroker@xxxxxxxxxxxxxxx, Bill Halliday <halliday_mo@xxx>
wrote:
>
> I wrote this email to Joachim Feseck at joachimfeseck@xxx, but the
address in no-longer valid. This is the program he uploaded to the
ALF Library on 2003-01-19 :
>
> Volatility Breakout with Bollinger Bands
>
> 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;
>
> Could someone explain what B is?
>
> Highlighted are comments I don't understand, could anyone expand
on them for me?
>
> Description:
>
> 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".
>
> Thanks,
>
> Bill
>
>
>
> ---------------------------------
> Be a PS3 game guru.
> Get your game face on with the latest PS3 news and previews at
Yahoo! Games.
>
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