Berkshire Hathaway's $4.3B Alphabet stake under new CEO Greg Abel signals a major AI pivot, with implications for Nvidia, crypto markets, and institutional

Warren Buffett said he was the driving force behind the conglomerate's recent big investment in Alphabet.

Berkshire Hathaway is a recent investor in Alphabet stock. Here's what Warren Buffett has to say on buying Alphabet stocks and regretting not buying it earlier.