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--- In equismetastock@xxxxxxxxxxxxxxx, "safdar_keb" <safdar19@xxxx>
wrote:
>
> Hello to everyone
>
> Few days ago there was a discussion about how to find out
securities
> who's Bollinger bands have come really close
> I have managed to write a formula which can find exactly this.
> The formula is very basic, but it works.
> =======================================================
>
> cola
> a1:=BBandTop( CLOSE, 10, S, 2 )-BBandBot( CLOSE, 10, S, 2 );
> (a1/BBandTop( CLOSE, 10, S, 2 ))*100
> {finds the % difference between the two bands, the less difference
> the better the probebility of a breakout}
>
> colb
> b2:=BBandTop( CLOSE, 10, S, 2 )-BBandBot( CLOSE, 10, S, 2 );
> c2:=(b2/BBandTop( CLOSE, 10, S, 2 ))*100;
> BarsSince(c2>10)
> { Finds the no of days the security is moving the tight band }
>
> filter
> cola<10
>
> ==============================================================
> I have taken the bands to be "tight" if the difference between the
> upper band and lower band is 10% (value in cola)
> Filter can be reduced to anyone's liking.
> Like wise in colb "BarsSince(c2>10)" 10 can be reduced to any lower
> number
>
> Safdar
>
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