Dividend yield is important, but this ratio is arguably even better.Warren Buffett hasn't bought many stocks for Berkshire Hathaway's (NYSE: BRK.A) (NYSE: BRK.B) portfolio in the months leading up to his stepping down as CEO. Lennar (LEN 1.81%) (LEN.B) is one notable exception, though.The homebuilder, like Berkshire itself, has two share classes. Buffett loaded up on both stocks in the second quarter of 2025. Berkshire's stake in Lennar, including both class A and B shares, totals roughly $919 million. I th ...