Trump’s first 100 days in office are worst for stock market in half a century - MarketWatch

1. S&P 500 faces its worst performance for a presidential term in 50 years. 2. Trump's tariffs triggered significant market volatility and recession fears. 3. Historical data shows below-average returns may indicate longer-term declines. 4. Investors await economic impacts of recent tariff policies in upcoming reports. 5. Short-term gains were noted after Trump paused most tariffs on China.