Buffett's Mystery Buy Revealed, and It's a Big Bet on UNH

Core Viewpoint - Berkshire Hathaway's recent investment in UnitedHealth Group, amounting to $1.6 billion for five million shares, signals a potential turnaround for the company despite its current challenges [1][4][13] Investment Context - UnitedHealth's stock had fallen nearly 50% in 2025 prior to the investment announcement, reflecting a troubled reputation and ongoing investigations into its Medicare billing practices [4][5] - The company has faced significant operational setbacks, including the withdrawal of its annual earnings outlook and a disappointing new outlook that contributed to further stock declines [5][6] Market Sentiment - The investment by Warren Buffett aligns with his strategy of purchasing undervalued companies during periods of negative sentiment, suggesting that the market may have overreacted to UnitedHealth's challenges [6][13] - Other notable investors, including Michael Burry and David Tepper, have also increased their stakes in UnitedHealth, indicating a shift in sentiment among institutional investors [7][10] Financial Metrics - UnitedHealth currently has a dividend yield of 3.25% and a strong 15-year record of dividend growth, with a payout ratio of 38.3%, indicating financial discipline [9] - The stock is trading at 11.5 times projected 2027 earnings, significantly below historical averages, suggesting potential undervaluation [11] Analyst Ratings - UnitedHealth holds a Moderate Buy consensus rating from Wall Street analysts, with an average price target of $366.52, representing nearly 30% upside from recent trading levels [8]