Quote from kinggyppo:
Another good trade, I was going to mention that DeMark has some information on establishing a buy range for options. The basic idea is to buy calls or puts that have declined 48% to 55% (no more, no less) are a good buy. There are other rules but I don't want to divulge someone else's hard work. See DeMark on daytrading options. The book is online in pdf form if you hunt around for it. Good trading.
Quote from meir13:
You can download book from here. http://rapidshare.com/files/94846526/DeMark_Tom_-_DeMark_on_day-trading_options.rar
Quote from atticus:
IMO, it looks like a system based on mean-reversion. I see no evidence that OI has anything to do with it. If so, please allude to some of the basic logic.
My suggestion is jeff, say nothing. As soon as you devulge some of your system ideas, that will just start another flame war as everyone and his uncle will try to disprove your theory. Weâve already seen a taste of that.