A Compelling 3-day Pullback Study

Tuesday marked the 3rd close lower in a row for SPY.  Three-day pullbacks will often trigger a few bullish studies.  The one below is the one I found most interesting.  It was featured in last night's subscriber letter.  It looked at other times that SPY had a 3-day pullback from a 50-day high, and that pullback was deep enough to put it below the 10ma, but not deep enough to see it at a 10-day closing low.  I have updated the stats table below.

 
Under these circumstances, it appears bounces have been both reliable and powerful.