I saw the thread when it began, but that was late at night and I didn't quite feel up to effort of trying to write something coherent in English , so I left it ... and now I see that in his two posts above, Handle has concisely and accurately said at least 90% of what I was thinking of conveying. Still, I'll mention (again) that what settings you'd want to use with BB vary enormously according to what you're trying to do with them. At various points, I've had colleagues successfully using BB's with settings ranging all the way from "9/0.7" to "35/2.2". I've also seen a simple system both extensively backtested and successfully used, intraday, which had settings of 28/1.0, and that was used for taking entries only in the same direction as an established longer-term/slower trend, entering (e.g. long) after two consecutive bars closed below the upper band and the third consecutive bar above it, the entry being a tick above the high of the third bar, with a stop-loss just below the most recently formed swing-low (as you can imagine, the objective of this set-up - like that of so many fairly decent, simple, partly-indicator-based entries, is to identify probable/possible trend-resumption points after brief retracements in a longer-term trend and enter only in the direction of that trend). It's far from anything described by John Bollinger (as far as I know, anyway), but still a perfectly viable and legitimate use of his bands. Disclaimer: whether this kind of idea might/can/will work for trading stocks, I'd have no idea at all, because I've never traded any ...