Warren Buffett’s hidden quantum play: Berkshire Hathaway’s bet on Alphabet and Microsoft’s next big frontier

Warren Buffett may have built his legacy backing railroads, banks, and consumer giants, but buried in a lesser-known corner of Berkshire Hathaway’s empire lies an unexpected wager on the bleeding edge of technology: quantum computing. Through a quiet $616 million portfolio managed by a subsidiary investment firm, Buffett is indirectly betting on Alphabet and Microsoft, two tech titans investing heavily in quantum breakthroughs that could redefine computing, accelerate AI, and reshape entire industries.