Stock markets suffer worst day since early August meltdown The Washington PostStock market today: Dow slides 600 points, Nasdaq sinks 3% as Nvidia leads chip sell-off Yahoo FinanceWatch Nvidia Rout Pulls Down Asian Stocks: What’s Next? BloombergDow falls by more than 600 points as September turns ugly CNNNikkei and Taiex plunge 3%, leading losses in Asia after Wall Street plummets on weak U.S. data CNBC