Machine Learning Answers: If S&P500 Drops 5% One Week, What's The Chance It'll Rise Next Week/Month?

Trefis found that if the S&P 500 drops 5% in a week (5 trading days), there is only a ~12% chance that it will rise by 10% over the subsequent month (20 trading days). The Trefis Machine Learning Engine allows you to answer the question: if S&P 500 dropped, what’s the chance it’ll rise.
Source: Forbes Markets