Warren Buffett has made a lot of money for Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) investors since making Apple (NASDAQ: AAPL) its biggest investment. But a few years before, Buffett made some mistakes in tech, trying to value-shop with IBM (NYSE: IBM). In this video, Motley Fool contributors Jason Hall and Tyler Crowe discuss the lessons we can learn and how a different Buffett stock that's easy to overlook -- Moody's (NYSE: MCO) -- has been a massively underappreciated winner.

*Stock prices used were from the afternoon of May 2, 2023. The video was published on May 5, 2023.

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Source Fool.com