U.S. stock indexes experienced significant declines on Monday, with the S&P 500 falling by 2.4%. This drop ends the holiday lull as President Trump’s renewed rhetoric against Federal Reserve Chair Jerome Powell and the uncertainty surrounding tariffs reignite market volatility.

Market movements include:

• S&P 500: -2.4%
• Dow Jones: -2.5% (-971 points)
• Nasdaq Composite: -2.6%

Investor fears surrounding policy credibility and ongoing trade tensions have contributed to heightened market volatility.