S&P 500 stock index futures briefly added to gains on Wednesday following data that showed core consumer prices remained relatively tame in June, while a July gauge of New York State manufacturing posted its highest reading in more than a year as orders surged.

S&P 500 futures climbed 11.10 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 rose 87 points, and Nasdaq 100 futures added 26.25 points.

(Reporting by Ellis Mnyandu; Editing by Padraic Cassidy)