S&P 500, Dow end lower ahead of key jobs data ReutersDow falls 200 points, S&P 500 posts third straight loss as growth fears plague investors: Live updates CNBCWatch S&P 500 Hit as Anxiety Brews in Run-Up to Jobs BloombergBusiness The EconomistDow Jones Today: Stocks Mixed as Investors Digest Data and Await Broadcom Earnings, Friday’s Jobs Report Investopedia