U.S. stock markets looked set to extend losses Tuesday, mirroring overseas declines amid a resurgence in credit-market jitters and nervousness about second-quarter earnings season. Less than two hours before the start of trading, Dow Jones Industrial Average futures were 38 points lower at 11167. The S&P 500 futures slipped 6.4 to 1245.4, and Nasdaq 100 futures lost 4.75 to 1827.5. Changes in futures do not always accurately predict early market moves after the opening bell. According to Thomson Reuters, Wall Street's consensus estimate is that S&P 500 companies will suffer a drop of nearly 13% in aggregate earnings for the second quarter, led by a nearly 67% slide in the financial sector's profits. Later Tuesday, investors will also eye pending home-sales data for May, due out at 10 a.m. EDT. Crude-oil futures slipped below the $140 a barrel mark. The front-month August contract on the New York Mercantile Exchange was trading $1.72 lower at $139.65 a barrel.
