Stock market today: Big Tech surges as S&P 500 crosses 5,600 for first time Yahoo FinanceS&P 500 closes above 5,600 for the first time, lifted by gains in Big Tech: Live updates CNBCStocks stride to record highs ahead of US inflation test Yahoo! VoicesNvidia leads Nasdaq and S&P 500 to record high closes ReutersAsian Stocks Set to Track Wall Street’s Tech Rally: Markets Wrap Bloomberg