Berkshire Hathaway recently filed its second-quarter 13F form, revealing its stock holdings at the end of June.

Key Takeaways Buffett has long been a big proponent of the index funds that Bogle helped bring to the masses.However, his public declaration that Bogle is an American hero may have also been influenced by the fact that one of Bogle's funds just helped Buffett win a $1 million bet.

No one can know, but here’s how to think about it.

At Berkshire Hathaway’s annual meeting earlier this year, Warren Buffett showed just how much of a fan he is of Apple’s CEO, Tim Cook. “Tim Cook has made Berkshire a lot more than I have made Berkshire,” Buffett said to laughter in the room. It was funny, but considering that Apple is Berkshire’s largest holding, I don’t think it was hyperbole.

Shares of UnitedHealth Group are surging before the market open Friday as Warren Buffett’s Berkshire Hathaway disclosed that it recently purchased shares of the beleaguered insurer.

The disclosure by Warren Buffett's Berkshire Hathaway that it bought UnitedHealth stock during the second quarter, while also making some other moves on D

It’s that one decision Buffett says you can’t afford to ignore. Integrity is such a non-negotiable aspect of Warren Buffett’s business practice that he vows the key to success is to associate only with people who possess it. He once said:

OMAHA, Neb. (AP) — Berkshire Hathaway revealed three new investments Thursday in steelmaker Nucor and two of the nation’s biggest homebuilders — Lennar and DR Horton — but none of the investments are big enough to ensure that legendary investor Warren Buffett handled them.

Warren Buffett’s net worth makes him 28 times richer than Donald Trump thanks to decades of savvy investing and Berkshire Hathaway's growth.