US Stock Indexes Climb Monday as AI Shares Swing; Brazil Stocks Fall After Surprise Election Result

U.S. stocks rose Monday, with the S&P 500 gaining 0.7% to 7,676.77, the Dow Jones Industrial Average adding 0.3% to 52,361.58, the Nasdaq composite climbing 0.8% to 26,169.38 and the Russell 2000 up 0.4% to 2,786.42. AI-related shares remained unsettled after weeks of sharp swings, while Brazilian stocks tumbled following a surprise reelection of Brazil's president. Investors face a heavy week: earnings reports are due from nearly one-third of S&P 500 companies, and the Federal Reserve and other major central banks will announce their latest interest-rate decisions. For the year, the S&P 500 is up 12.1%, the Dow 8.9%, the Nasdaq 12.6% and the Russell 2000 12.3%.