Stock futures add to losses after jobless data

Other data showed higher oil prices pushed prices for imported goods higher in July.

S&P 500 futures were down 8.3 points and were below fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures slid 59 points, and Nasdaq 100 futures dropped 17.5 points.

(Reporting by Caroline Valetkevitch; editing by Jeffrey Benkoe)