| StockFetcher Forums · Filter Exchange · Bollinger Squeeze | << 1 2 3 >>Post Follow-up |
| yepher 359 posts msg #31689 - Ignore yepher |
4/11/2004 7:05:33 PM Sorry if this has already been posted. I have been reading Bollinger on Bollinger Bands and thought I would share the filter that is based on the formula he provides. This will give you the stocks whose bollinger bands have reached a new low compression level of the past 6 months. (Side note: I generally don;t like using the set command because to me it makes the filter harder to read but I think in this case it simplifys the filter) If anyone has any suggestions on improving it I would love to hear about it. -- Yepher |
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| yepher 359 posts msg #31690 - Ignore yepher |
4/11/2004 7:19:48 PM Here is anoter variation of th same filter. Sorts by the most compressed Filter[ set{top,upper bollinger(20)} set{bottom, lower bollinger(20)} set{squeeze, top - bottom / ma(20)} AND squeeze reached a new 6 month low AND close near upper bollinger(20) AND price between 1 and 10 AND add column squeeze AND sort by column 5 ascending AND chart-time 68 ] |
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| yepher 359 posts msg #31691 - Ignore yepher |
4/11/2004 7:24:12 PM Repost of same filter to see if I can get it clickable and still have multiple lines. Here is anoter variation of th same filter. Sorts by the most compressed Filter[_ set{top,upper bollinger(20)}_ set{bottom, lower bollinger(20)}_ set{squeeze, top - bottom / ma(20)}_ AND squeeze reached a new 6 month low_ AND close near upper bollinger(20)_ AND price between 1 and 10_ _ AND add column squeeze_ AND sort by column 5 ascending_ AND chart-time 68] |
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| dangreene 229 posts msg #31697 - Ignore dangreene |
4/12/2004 7:27:07 PM yepher, I would suggest scanning for a specific value for the "squeeze" rather than looking for a new 6 month low. VIZ: set squeeze, top - bottom / ma(20)} AND squeeze is below .20 My thinking is that there could be a couple of squeezes in a 6 month period and todays value might be .14 while the previous values might be .13 or less. With a value this low, who is to say that the most current squeeze might not turn out to be the most profitable? Thanks for sharing your scan as I think it has a lot of potential. dangreene |
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| yepher 359 posts msg #31726 - Ignore yepher |
4/13/2004 11:30:46 PM First of all I should say, I am a big fan of the people who contribute to this forum and have been watching for some time now. I am glad to finally have something that I can contribute. dangreene, - I guess I could use the syntax "near" for the 6 month lows if the filter seems to be too tight or missing good canidates. Yes? Cegis, - Ahh yes Fetcher not Filter. Sometimes I just overlook the obvious DOH!!! - I like the final idea you proposed. I think a varation to that which I will research is: if currently in a squeeze now and the previous squeeze of same relative magnitude performed well in average price(N) then does that provide any addition statistical confidence and predictability. This is purly looking for magnitude of breakout and not direction. - This filter will not do well if you use the performance analysis because it does not attempt to define direction for movement. It only tries to find out that there is going to be a movement. My thinking on the filter, My first pass was to impliment as exactly as possible to filter described in Bollingers book and here: http://www.investopedia.com/articles/technical/04/030304.asp I will continue my research on Bollinger squeeze. From my study of this filter it seems you get a nice price shift within the next 2 - 7 weeks. I don't think Bollinger band really indicates direction so I am working on a complimentry divergence filter to indicate direction. From this bollinger filter I want to derive the following: A. Bollinger squeeze between some range B. Bollinger band just started to loose some compression C. Divergence of oscillator I have parts A & B And I have been studing all the posts on divergence as well as the SF manual but I have not quite figured out how to accomplish part C. I am thinking I need to use linear regression for the lows (or highs depending on what Long or Short prospect) of the oscillator and tie that to the linear regression of price somehow. I am not convinced that the divergence discussed in the forum is the same as the one I am looking for. Need more research on my part :) The oscilator that I hope to use is one with a lot of smothing and not suseptible to hiccups when data falls large price deviation fall off the end of the window. More smothing that Stoch would be great. What I hope to find is a stock that has a good chance of movement and with some level of direction prediction. It would be nice to also get some insight into head fake and how to detect it. Happy Trading, -- Yepher |
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| dangreene 229 posts msg #31733 - Ignore dangreene |
4/14/2004 10:51:21 AM yepher, After looking at your scan more closely I would also like to suggest that you consider eliminating "AND close near upper bollinger(20)_". My reasoning is that first of all it limits the number hits you get back and secondly, when the bands have contracted to this extent just how relevant is this requirement? You said, "The oscilator that I hope to use is one with a lot of smothing and not suseptible to hiccups" For what it's worth, I use slow stochastic(39,3) and wait for fast %K to cross above 50 as an indicator of strength and likely direction. Once on a watch list I then like to see a positive DMI crossover. At first blush it seems that this scan will do well when the market is trending up. Check a chart for the nasdaq-100 and run your scan with a days offset to give you results for Tuesday March 23, 2004 as an example. Cegis, glad to see your input here. It takes me a while to digest some of your code but I end up seeing the value in it. Hope we can all continue to contribute and come up with a productive scan. dan greene |
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| dangreene 229 posts msg #31739 - Ignore dangreene |
4/14/2004 4:24:11 PM yepher & cegis, Here is an extreme example of the slow stochastic(39,3). Notice how it remained at a high level on the following stock. http://stockcharts.com/def/servlet/SC.web?c=HIET,uu[h,a]daclyiay[db][pi!d20,2!f][vc60][iUh39,3!Ul14]&pref=G HIET showed up on my version of the BOL BAND Squeeze scan for Thursday April 1, 2004. See how HIET traded in a narrow channel from Feb 2 until Mar 4 & Mar 5, at which time Stoch(39,3) bumped up a notch along with a bump up in a 14 day +DI & ADX. Then after hitting a high on Mar 15 it traded in a channel again until the BB squeeze on Apr 2. Once again the Stoch(39,3) bumped up along with the +DI(14) on Mar 6. Here is my version of the scan: If you guys feel it has merit maybe you can find a better way to incorporate the Stoch(39,3) into the BBSqueeze scan, or maybe even develop a new scan to find channeling stocks where the Stoch(39,3) remains at a high level. It also seems that RSI(2) could be an important indicator if it reads ZERO a day or two before the squeeze date or on the squeeze date. I am going to continue to check on this. dan greene |
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| yepher 359 posts msg #31742 - Ignore yepher |
4/14/2004 6:05:56 PM Dan, Thank you, for all the input this is good stuff. I like the direction you are going. I am going to spend time with this filter you have and see how far it moves toward where I think this can can go. To me a true test of the filter would be that it returns very few results when the market is stagnant and many results when the market is on the move. Originally I was not going to worry about ADX since I thought the fact that there was bollinger compression ADX would already be showing oscilator. I need more thought on this point. I realized last night that I did not mean to say "Linear Regression" of lows on oscillator but the slope of the lows on the oscillator to help judge direction. Sorry if that caused any confusion. -- Yepher |
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| dangreene 229 posts msg #31744 - Ignore dangreene |
4/14/2004 6:34:40 PM Yepher, You said, "I realized last night that I did not mean to say "Linear Regression" of lows on oscillator but the slope of the lows on the oscillator to help judge direction. Sorry if that caused any confusion." I tried adding "slope of slow stochastic(39,3) above 0" to the scan but too often the stoch had already turned down yet satisfied the condition and I find it unproductive to enter a trade when the stoch(39,3) is turning down. dan greene |
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| StockFetcher Forums · Filter Exchange · Bollinger Squeeze | << 1 2 3 >>Post Follow-up |
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