Glen The one thing I would say and it may be a clue, is look at the incline and strength the -ADX 14 is showing this time and it has not rolled over yet, even though it looks like price has rolled over already.
About SPY, so far: my “V” strategy detected today 3 independent “false drops” of the index. They were all rendered inconsequential by abrupt intervention and the rise of SPY stayed intact. But more than that: the “opportunistic” bears were hurt and now they are psychologically stressed. Have fun watching the grand finale.