.What's behind the securities market's brutal 2-day system crash? FortuneMarkets end the day dramatically lesser after weaker projects show up fires up concerns of a slowing down economy CNNDow closes down 600 points, Nasdaq gets in adjustment after feeble jobs file: Stay updates CNBCStocks pounded after this full week's effort data shows entrepreneurs handling 'bad news as trouble' Yahoo FinanceDow, S&P five hundred, Nasdaq possess worst session due to the fact that 2022 Fox Service.