U.S. stock index futures fell late on Wednesday as investors took in a round of quarterly results after the closing bell, including Qualcomm Inc and eBay Inc .

S&P 500 futures fell 2.9 points and were below 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 fell 25 points, and Nasdaq 100 futures slipped 6.5 points.

(Reporting by Leah Schnurr; Editing by Kenneth Barry)