I didn't say that after it gaps it will close.
I said, if it gaps up (opens higher than todays close), then the price will come back to todays close. Therefore, the gap will have closed.
If it gaps down.... i don't know if it will close. I don't see a reason for it to close as the direction is biased down.
Basically, I take a directional bet on the gap, if it goes my way, the gap play is finished and i exit.
If it goes against me, I take profit from my hedge, and double down on the original bet that it will go in my direction because my theories/indicator say so.
I use a customized E-wave theory, and the relationship of volume at pivots. Basically a black box theory that I'm in the process of programming and perhaps will sell to some big wig company.
edit: I also analyze the relationship of a constantly changing pool of stocks based on criteria that i set forward. Using these stocks, i'm able to find information about what will happen that i wouldn't be able to find using just and NDX or QQQ chart.
edit: deleted a paragraph cause i misunderstood u.