70% of the time stocks go down the day after a huge daily gain of 2% or more

Want to make a short-term gain in your stock market trading? Buy SPXU which will short the SP500. So if the S&P500 goes down you make money.

I did a careful and comprehensive historical review of stock market gains and losses on the days after a large- 2% or more- gain. About 70% of the time there is a very large daily increase in the stock market the next trading day is negative. Not guaranteed but likely to happen in the future