CarMax (KMX) - Market capitalization

Market cap: £4.36 Billion

As of December 2025 CarMax has a market cap of £4.36 Billion. This makes CarMax the world's 2809th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of CarMax from 1997 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£4.36 B	-57.47%
2024	£10.27 B	7.94%
2023	£9.51 B	19.68%
2022	£7.95 B	-49.01%
2021	£15.59 B	38.48%
2020	£11.26 B	3.12%
2019	£10.92 B	29.96%
2018	£8.40 B	-2.05%
2017	£8.58 B	-12.12%
2016	£9.76 B	36.98%
2015	£7.12 B	-20.63%
2014	£8.98 B	41.14%
2013	£6.36 B	20.07%
2012	£5.29 B	19.33%
2011	£4.44 B	-4.65%
2010	£4.65 B	39.47%
2009	£3.33 B	181.83%
2008	£1.18 B	-45.41%
2007	£2.17 B	-26.2%
2006	£2.94 B	74.79%
2005	£1.68 B	-0.16%
2004	£1.68 B	-6.03%
2003	£1.79 B	56.01%
2002	£1.14 B	93.67%
2001	£0.59 B	777.37%
2000	£67.66 M	95.81%
1999	£34.55 M	-53.28%
1998	£73.95 M	-39.08%
1997	£0.12 B

End of Day market cap according to different sources

On Dec 5th, 2025 the market cap of CarMax was reported to be:

£4.27 Billion

by Nasdaq

£4.36 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
AutoNation AN	£5.90 B	35.18%	🇺🇸 USA
Copart CPRT	£28.11 B	543.37%	🇺🇸 USA
Penske Automotive Group PAG	£8.17 B	86.97%	🇺🇸 USA
Group 1 Automotive GPI	£3.82 B	-12.37%	🇺🇸 USA
Rush Enterprises RUSHA	£3.24 B	-25.63%	🇺🇸 USA
OPENLANE Corporate KAR	£2.08 B	-52.30%	🇺🇸 USA
America's Car-Mart CRMT	£0.16 B	-96.30%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of CarMax (KMX)

Market cap: £4.36 Billion