Market cap
$7.495 B
$52.80 -4.24%
Close of 6 Nov 2026
As of 6 Nov 2026, Carmax (KMX) has a market capitalization of $7.49B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.
Revenue
$25.9B
#166 by revenue
Earnings
$247.0M
#905 by earnings
Shares outstanding
141,942,807
Latest filing cover page
P/E ratio
30.3
Cap ÷ net income
Retail-Auto Dealers and Gas Stations, ranked by market cap
All 19 →- #4Penske Automotive GroupPAG$13.9B
- #5Murphy USAMUSA$9.33B
- #6CarmaxKMX$7.49B
- #7Lithia MotorsLAD$6.85B
- #8AutonationAN$5.99B
What if Carmax were worth as much as…
Open the what-if tool →Where these numbers come from
Share counts and financials for Carmax are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.