NEW YORK, Nov 10 (Reuters) - S&P 500 stock index futures briefly turned positive on Wednesday after better-than-expected weekly U.S. jobless claims data, but concerns over the Federal Reserve's asset purchases and European sovereign debt weighed.
S&P 500 futures declined 0.8 point 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 fell 19 points, and Nasdaq 100 futures dipped 2.75 points.