US investors trigger major Wall Street sell-off over recession fears The GuardianStock market news today: Tech stocks crushed, 10-year falls below 4% as weak data shows cracks in US economy Yahoo FinanceDow closes nearly 500 points lower as investors fear the US economy is faltering CNNDow slides almost 500 points as Wall Street frets over economic data The Washington PostStocks Sell Off a Day After Furious Rally as Volatility Returns Bloomberg