NEW YORK, Dec 14 (Reuters) - S&P 500 stock index futures edged higher on Tuesday after data showed sales at U.S. retailers rose more than expected in November and U.S. producer prices climbed above economists' estimates.
S&P 500 futures rose 1.2 points and were slightly 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 5 points, while Nasdaq 100 futures added 0.5 point.