美股IPO·2025-08-15 04:45Core Viewpoint - David Tepper's Appaloosa Management significantly increased its stake in UnitedHealth Group, showcasing a contrarian investment strategy during a period of market turmoil for the company, while simultaneously reducing exposure to Chinese stocks like Alibaba, JD.com, and Pinduoduo [3][5][8] Group 1: Investment Actions - Tepper increased his holdings in UnitedHealth Group by 2.3 million shares, bringing the total value to $764 million, making it the second-largest position in his portfolio at 11.9% [3][5] - The fund also increased its stake in Nvidia by 483% and Taiwan Semiconductor by 279.6%, while reducing positions in Meta and Alphabet [4][6] - Despite a 20% reduction in Alibaba shares, it remains the largest holding at approximately $802 million [4][8] Group 2: Market Context - UnitedHealth's stock price fell approximately 40% during the second quarter, making it one of the worst performers in the S&P 500, amid multiple crises including a CEO change and a criminal investigation [5][6] - Tepper's actions coincided with Berkshire Hathaway, led by Warren Buffett, also initiating a position in UnitedHealth, which helped boost market confidence and led to a nearly 10% increase in the stock price in after-hours trading [5][6] Group 3: Chinese Stocks Adjustment - Tepper's significant reduction in Chinese stocks reflects a more cautious outlook, with Alibaba's stake reduced by over 20%, and even larger cuts in JD.com and Pinduoduo [8] - The MSCI China Index rose about 46% over the past year, indicating previous successful investments in Chinese stocks, but the current adjustments suggest a shift in strategy [8]