I'm doing something similar as far as looking for extremes. If you look at any research notes on my site that deal with short term TFs, they always indicate that price tends to gravitate toward the mean in the short term.
So I used multiple regression to model how the last three hours of the London session act after the news in the U.S. comes out. The model gives a projected high, low and close for the rest of the session, and the plan is to wait until price gets near the projected H/L and then look for reversal patterns to enter. Just starting that technique today actually.
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