At the opening of the U.S. stock market, the Dow fell 0.1%, the S&P 500 fell 0.15%, and the Nasdaq fell 0.5%. Micron Technology (MU.O) fell 4%, and its competitor SK Hynix warned that demand for commodity memory chips will fall even more sharply. American Airlines Group (AAL.O) fell 8.7%, and the company predicted that its profits in 2025 would be lower than expected. Union Pacific (UNP.N) rose 3.4%, and its Q4 net profit exceeded expectations.