NEW YORK, Sept 10 (Reuters) - U.S. stock index futures edged up on Thursday after data showed the number of workers filing new claims for jobless benefits fell last week.
* A separate report showed the U.S. trade deficit widened the most in more than 10 years in July as imports grew on resurgent U.S. demand for foreign cars, consumer goods and oil.
* S&P 500 futures added 0.9 points and were above 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 gained 7 points, and Nasdaq 100 futures were up 3.75 points. (Reporting by Leah Schnurr; Editing by Theodore d'Afflisio)