I agree with that idea because it directly answers my earlier question of "How can zig-zags be so motive?"
With that in mind, yesterday and today could have finished an ending diagonal. The sudden pullback and complete retracement in the mid to late afternoon would be waves 4 and 5 of the ending diagonal.
My head is spinning counting the waves in the indexes. Some of the individual stocks look clearer. They are all near an end.