Stock futures are mixed for the third straight day as U.S. companies, particularly in the tech sector, are being either trounced or adored by investors.

Shares of Apple Inc. are down 9 percent, while shares of Netflix Inc. are soaring 36 percent after both companies posted earnings late Wednesday.

Dow Jones industrial futures are up 4 points to 13,723. The broader S&P futures have lost 3.3 points to 1,487. Nasdaq futures are down 34.25 points to 2,724.74, largely due to the weight of Apple.

Southwest Airlines Co. said that earnings were nearly cut in half because of money spent on fuel and maintenance, but shares are up in premarket trading. Its rival, United Continental, says losses widened in the fourth quarter and revenue dipped.

United shares are down before the opening bell.