Key TakeawaysCarMax posted an increase in retail unit sales in the second quarter, and earnings and revenue came in above estimates.Comparable store unit sales increased 4.3% year-over-year.CEO Bill Nash noted the positive results came even as the industry faced "auto loan loss pressure." CarMax (KMX) shares drove higher Thursday after the biggest U.S. used car retailer posted better-than-anticipated results on higher retail vehicle sales. The company reported fiscal 2025 second-quarter earnings per share ( ...