Key Points In one of his last moves before stepping down, Warren Buffett took a multi-billion-dollar stake in Alphabet. That position is now the 13th largest in Berkshire Hathaway's portfolio, proving the wisdom of that decision. Buffett's move came as Alphabet's new Search feature, AI Overview, attracts two billion monthly users. 10 stocks we like better than Alphabet › Almost a decade ago, the legendary investor Warren Buffett admitted that he made a mistake in not buying shares of Alphabet (N ...