U.S. stock index futures pointed to a higher open Tuesday as investors pored over another cluster of corporate earnings.
Dow Jones industrial average futures rose 27 points, while S&P 500 and Nasdaq 100 futures gained 4.75 points and 23 points, respectively.
Earnings season continued to shake up sentiment on the second trading day of the week.
Dow-component Pfizer reported better-than-expected earnings, sending the stock 0.9 percent higher in the premarket. Aetna posted mixed quarterly results, with the top line missing estimates and earnings beating forecast; its stock rose 1.9 percent.
Cummins reported revenue and a profit that topped Wall Street expectations, lifting the stock nearly 2 percent.
Under Armour posted a better-than-expected profit, but the sports apparel retailer also trimmed its full-year earnings and sales guidance. Class A Under Armour shares dropped 16 percent before the bell.