Market Movers rounded up the best trade ideas from investors and analysts on CarMax throughout the day. The pros, including Jim Cramer , discussed CarMax on Tuesday. Shares ended the session 9.6% higher after the company reported a huge beat on earnings for its fiscal fourth-quarter before the opening bell. Jenny Harrington, CEO of Gilman Hill Asset Management, owns CarMax . She said she believes the stock was “oversold, overly discounted.” The car retailer was the biggest winner in the S & P 500 Tuesday.