Shares of CarMax Inc. (KMX) climbed 4.87% on September 30, 2026, closing at $59.23. The used-vehicle retailer's market capitalization stood at $8.03 billion at the close of trading.
Over the trailing seven days, KMX has gained 4.19%, suggesting a degree of near-term momentum. The single-session and weekly advances, however, have not fully offset broader recent weakness, with the stock still down 4.65% over the past 30 days.
The divergence between the short-term gains and the longer-term pullback reflects the mixed price action that has characterized KMX in recent weeks. The stock's 30-day decline of 4.65% indicates that Tuesday's advance and the weekly uptick represent a partial recovery rather than a sustained reversal.
With a market capitalization of $8.03 billion, CarMax remains one of the larger publicly traded companies in the used-vehicle retail space. Wednesday's move brings the stock to $59.23 as investors assess the company's positioning heading into the final stretch of the year.
