Buffett Is Underwater Vs. S&P 500 In 2025: $137 Million Loss On Pool Corp Stock Since Q2 Not Helping

As 2025 draws to a close, it’s evident that legendary investor Warren Buffett underperformed the S&P 500 during his last year as CEO of Berkshire Hathaway Inc (NYSE:BRK)(NYSE:BRK).Several stocks in the Berkshire Hathaway portfolio have underperformed the market this year, including Pool Corp (NASDAQ:POOL), one of the newer picks from the Buffett-led conglomerate.Pool Corp Stock StrugglesIn the second quarter of 2025, Berkshire's 13F filing revealed that Buffett and his team of investors increased their posi ...