U.S. stocks experienced significant volatility as investors reacted to the latest inflation data and the recent debate between Vice President Kamala Harris and former President Donald Trump. The Dow Jones and S&P 500 recovered from earlier losses, with tech stocks leading gains. The debate boosted Harris’s odds in the election, impacting market sentiment and causing a rise in stocks expected to benefit from a Democratic win, such as green energy stocks. Meanwhile, European and Irish markets also showed volatility in response to U.S. inflation figures, with notable declines in sectors sensitive to economic performance. Investors remain cautious amid mixed economic signals and the upcoming Federal Reserve interest rate decision.