http://answers.yahoo.com/question/index?qid=20080220122903AAgR5IC http://stockchartist.blogspot.com/2008/06/again-s-oscillator.html
you can get some good free info on this site I found the other day looking for the oscillator - http://www.mcoscillator.com/
Here is the real deal, the Sposcillator, available only from Mudgins and Acssociates. Our motto is "When it works, it works. When it doesn't, don't call us, we've already spent your money." Right now, it doesn't work, because $SPX is in sposcillation. Give it some time, and it will work again. We're gassing short.