I talked to John in the early 90's after I leased his latest package. He could not trade them, got my money back.
My bb shorting strategy has an 87% win rate for a particular category of stocks. I have investigated two other categories of stocks but in these categories the number of trade possibilities are fewer.
May 8, 2013: Morning: +1 +0 -1 +0.50 +0.75 +0.75 +0 +0.75 +0.50 +0.75 +0 Afternoon: +0.50 +0.50 +0.25 +0.50 +0.50 +0.50 +0.50 +0 +0.75 -1 +0.25 +0.75 +0.75 -1 -1 Total: 6.75 26 trades @ approximately 0.125 points per trade = 3.25 points in commissions. Net: 3.5
May 9, 2013: Morning: +1.25 -1 +1 -1 -1 +0.75 Afternoon: +0.50 -1 -1 +1 +0.25 -1 -1 Total: -2.25 13 trades at approximately 0.125 points per trade = 1.625 points in commission. Net: -3.875
no kidding, at one time in my youth I use to fade those bands religiously. It was a real trip trading them during an Alan Greenspan speech. Bollinger was the one that set me on the right path 90% money management 10% reading the market I don't use any indicators, but if I had to pick just one it would be Bollinger Bands. If you listen to one of his lectures, it is 90% about money management.
Be aware of data snooping bias, you don't know the real band's value until the bar closes. By the way this is 2 lines of code to backtest with most platforms, it could save you some time.
sometimes, I think it is just how you read the market there are probably only two types of traders in life MA crossovers and BB faders