US STOCKS SNAPSHOT-Futures tick up after GDP revision

NEW YORK Aug 27 (Reuters) - U.S. stock index futures extended gains on Friday after data showed U.S. gross domestic product for the second quarter was revised lower, but the figure was better than anticipated.

S&P 500 futures SPc1 rose 8.1 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 DJc1 gained 68 points and Nasdaq 100 futures NDc1 added 15.25 points.

U.S. second quarter GDP was revised lower to an annual rate of 1.6 percent versus expectation of 1.4 percent. [ID:nN26193565] (Editing by Jeffrey Benkoe)