UnitedHealth Stock Falls 19%, American Airlines Slides as Q4 Earnings Season Intensifies

UnitedHealth (UNH) shares dropped 19% while American Airlines declined in early earnings reactions as Q4 reporting season accelerates with major tech results due this week. Analysts project 8.2% EPS growth for S&P 500 companies, potentially marking the tenth straight quarter of annual earnings expansion. Tech giants Microsoft (MSFT), Meta (META), Tesla (TSLA), and Apple (AAPL) headline this week's earnings calendar, with Wall Street raising expectations for tech sector performance. Broader market breadth and themes including AI, trade policy, and consumer economic trends remain key investor focus areas alongside results from Boeing, GM, Starbucks, and energy majors.