All eyes were on Apple after the bell. Earnings came in just after 4:30 pm and the technology company beat on both revenue and earnings per share.
Apple reported earnings of $3.89 versus estimates of $3.86, and revenue was reported at $88.3 billion versus estimates of $87.3 billion. Tim Cook said, "iPhone X surpassed our expectations and has been our top-selling iPhone every week since it shipped."
The company also reported a record $285.1 billion in cash reserves.
Union workers at Mack Trucks went on strike Monday after voting down a tentative five-year contract agreement that negotiators had reached with the company.
Claudia Goldin, a Harvard University professor, was awarded the Nobel economics prize on Monday for research that helps explain why women around the world are less likely than men to work and to earn less money when they do.
