the-rolling-past-12-monthsclear-what-has-happened-russell-2000-small-caps-outperformed-by-a-wide-margin-a-full-years-worth-in-3-months-through-march-and-then-nada-for-7-months-in-a-row.if-you-observed-this-and-understand-the-idea-of-mean-reversion-what-to-do-next-was-very-clear.png