Stock Market Today, Jan. 21: Trump travels to Switzerland amid Greenland exchange

Market Overview - The U.S. stock market experienced significant declines, with over 70.7% of U.S. issues falling on Tuesday, while only 26.4% advanced [2] - The Nasdaq Composite and S&P 500 dropped by 2.39% and 2.06% respectively, with the Dow and Russell 2000 also showing losses of 1.76% and 1.20% [3] Earnings Reports - Major earnings reports expected today include Johnson & Johnson, Charles Schwab, and Prologis, with a focus on regional banks reporting in both premarket and aftermarket sessions [5] - The S&P Regional Bank ETF ($KRE) is anticipated to be particularly responsive to these reports, having risen over 14% since its lows in November 2025 [6]