NEW YORK, Sept 17 (Reuters) - U.S. stock index futures rose on Friday, holding onto gains after data showed U.S. consumer prices increased slightly more than expected in August.
S&P 500 futures rose 2.4 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 added 30 points, and Nasdaq 100 futures gained 6.75 points.