S&P 500 futures are little changed after index posts three straight losing days: Live updates CNBCWall Street closes down, pressured by tech losses and worries about rates ReutersMarkets News, October 23, 2024: Major Indexes Tumble as Tech Stocks Slide; Nasdaq’s 5-Day Winning Streak Snapped InvestopediaWhy U.S. stock market’s slump on rising Treasury yields may be short-lived MarketWatchDow tumbles 400 points, suffering worst day since early September: Live updates CNBC