The $SPY finished just under 2.% off the lows today, so I ran a sample of days where the index finished 1.8% or better above the low for the day. You could dice it a lot of ways, but this is the one I chose.
It's happened a lot of the last 15 years, I looked at what happened the following day or days and didn't really see a major trend. Some days were up, some down and some barely moved. In looking at the list, I saw it happening a lot in 2008, a very bad year for stocks. So, I added up the numbers per year.
As you can see, the worst years are bear market years, 2008-9 and 2000-2002. Having a lot of these is a sign of volatility and a bad thing. I can't say what one day will bring, but a lot of them are not good.
Best of luck trading.