Stocks reversed their advance in October, with Microsoft Corp. and Meta Platforms Inc. weighed heavily on trading on Wall Street after disappointing prospects.

Stock investors grappling with an overwhelming amount of corporate earnings sent the S&P 500 down 1.3%. The decline ended a streak of monthly gains that would have been the longest since 2021. The Nasdaq 100 fell 1.9%. Treasure chests didn’t do much on Thursday but were about to experience their biggest monthly sell-off in about two years as traders upped their bets on aggressive rate cuts from the Federal Reserve while the economy shows signs of strength.