The problem with sending data through the Machine Learning black box, is that you're never quite sure what data they focused in on. Whatever data it chose, we should be aware that *Berkshire's* repurchase plan is not like those of most companies. It has a valuation limit above which Buffett will chose to keep the cash or find another opportunity, and the size of the repurchases may not rise and fall with company earnings like other repurchasers.

Excess returns of 30% is really why I clicked the link. But that's the cumulative return from 2013 to 2022. And the methodology has just treaded water the last 5 years. From 2013 to 2017, the portfolio gained maybe 32% excess returns, then gave some up, made a bit more, and ended back at the 30% reported number.