Since 1964, significant pullbacks in the S&P 500 have been driven by a variety of factors including economic recessions, geopolitical tensions, and shifts in monetary policy. In recent years, concerns over inflation, interest rate hikes, and global supply chain disruptions have also played a role. Investors are now closely monitoring corporate earnings, Federal Reserve decisions, and macroeconomic data for signs of what might spark the next major market correction. — news from MarketWatch