Stock futures are heading lower as the U.S. kicks off the first earnings season of 2013.

Dow Jones industrial futures are down 10 points to 13,297. The broader S&P futures have given up 1.8 points to 1,454. Nasdaq futures are down 2.25 points to 2,715.50.

Alcoa posts fourth quarter earnings after the markets close Tuesday and analysts that follow the company are looking for a profit of 6 cents per share. That would be a rebound for the aluminum producer, which lost $191 million, or 18 cents per share, in the same quarter last year.

There is early pressure on markets from overseas.

The number of unemployed people in the European Union is now 18.8 million, the most ever. Almost 11 percent of people living in the 17-nation bloc don't have jobs.