The U.S stock index futures opened slightly higher on Tuesday after the investors were really enthusiastic as the major companies announced better than expected earnings report.
Dow Jones Industrial Average futures opened higher to 24,519.62, while S&P 500 futures advanced to 2644.89. Nasdaq-100 futures opened higher at 7087.49.
Major companies like Pfizer, Veizon and Biogen reported strong profits. The investors are also waiting anxiously for the earning reports of the companies like Apple, eBay and Allergan.