Delta Air Lines down 10% at $45.50 after Q1 guidance cut

Shares of Delta Air Lines (DAL) are down 10% or $4.83 at $45.50 after the company cut its Q1 EPS and revenue guidance. Shares of other major airlines are also trading down on the news: American Airlines (AAL) is down 4% at $12.00, Southwest Airlines (LUV) is down 3% at $27.87, United Airlines (UAL) is down 7% at $72.01.