I'm attaching a screenshot and zip of a Pinch / Expansion of smoothed Bollinger Bands. I don't know if anyone has a preference for range / tick / or volume bars but i've shown this with tickbars. I'm attempting to show when the expansion occurs within three bars of a recent pinch occurence. If you're able to modify the code or point out why the white bar colors aren't showing up, please let me know... Also, for experienced Bollinger traders, please let me know if you've seen another manner of tracking the pinches (besides the standard squeeze inside the Keltner channels - feel free to compare and post a screenshot - thx)
Hope you like the colors.... We're getting ready for FLORIDA GATOR FOOTBALL!
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Here are a few BWT squeeze shots. Bottom panel, yellow hash on zero line = squeeze. I don't use it because I think it is worthless more or less. But I turned it on to just show some "professional" indicator version of squeeze.
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I haven't yet begun to use it for trading decisions... Although the Orange would signify get ready for a move in one direction or the other.
The Orange is signifying tightening value between Upper and Lower bands. When that value doesn't decrease further, it stops painting. The Blue is signifying a fairly large expansion - in the current code, when the difference between upper and lower bands compared to the previous bars value is greater than 10%.
Sometimes, there's a fakeout after the expansion when it hits the band and immediately reverses... If you Google "Bollinger" there's plenty of online resources to learn more about the nuances of trading with these bands. The one I'll probably be trying to code for a trading decision is the double-top/double-bottom outside / inside the bands. You can see these when you use a line on close plot of prices. It often pulls back to the middle SMA after this occurs.
Hope that helps.
Last edited by zeller4; September 3rd, 2009 at 09:29 PM.