U.S. stock markets are experiencing a robust midday rally on Monday, October 20, 2025, with major indexes extending gains from last week's close. The positive momentum is largely driven by easing concerns over regional bank stability, a perceived de-escalation in U.S.-China trade tensions, and strong individual stock performances, particularly from tech giants. Trading appears calmer today following a period of volatility last week.Major Market Indexes PerformanceAs of midday, the benchmark S&P 500 Index (S ...