Stock market today: Nasdaq futures lead markets lower ahead of crucial jobs report Yahoo FinanceStock Market Today: Nasdaq, S&P 500 Futures Fall Ahead of Jobs Report The Wall Street JournalS&P 500 Falls as Anxiety Brews in Run-Up to Jobs: Markets Wrap BloombergBusiness The EconomistS&P 500 futures fall as traders gear up for big August jobs report: Live updates CNBC