Stock Market: Will S&P 500 Open Up or Down Today?

U.S. stock futures traded mixed on Wednesday, September 23, with the S&P 500 futures marginally higher near all-time highs while the Nasdaq 100 futures remained flat after logging back-to-back record closes driven by artificial intelligence stocks. The market's direction remained uncertain as investors monitored soaring Treasury yields and geopolitical developments including Chinese leader Xi Jinping's U.S. visit and U.S.-Iran relations. Technology stocks, which had powered recent gains, faced headwinds from rising bond yields.