U.S. stock index futures were edging slightly higher on Thursday morning on a bumper day for corporate earnings.

Around 6 a.m. ET, Dow futures indicated a positive open of more than 30 points. Futures on the S&P and Nasdaq were also hovering around the flatline.

Wall Street ended Wednesday on a slightly positive note despite earnings from Caterpillar and Boeing which both missed analysts' expectations.

The market focus Thursday remains on the corporate sector. Thursday marks the busiest day of the earnings season. Comcast, American Airlines, and Twitter are among some of the major companies set to report before the opening bell. Amazon, Intel, and Visa will be reporting their latest quarterly figures after the market close.

On the data front, there will be jobless claims and durable goods at 8:30 a.m. ET. New home sales data are out at 10 a.m.

In Europe, President Mario Draghi of the European Central Bank is hosting his last monetary policy meeting as the central bank's chief. Draghi, who will be remembered for his "whatever it takes" speech, ends his eight-year reign at the ECB on October 31.