Costco Market Cap

Costco has a market cap or net worth of $451.66 billion as of November 3, 2026. It is the 25th most valuable company in the world and the 20th biggest in the United States. Its market cap has increased by 11.82% in one year.

Market Cap

451.66B

Enterprise Value

440.54B

1-Year Change

11.82%

Global Rank

#25

Country Rank

#20 United States

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Since December 1, 1998, Costco's market cap has increased from $13.65B to $451.66B, an increase of 3,208.70%. That is a compound annual growth rate of 13.34%.

Market Cap History

Date	Market Cap	% Change
Nov 3, 2026	451.66B	18.00%
Dec 31, 2025	382.77B	-5.89%
Dec 31, 2024	406.73B	38.87%
Dec 29, 2023	292.90B	44.60%
Dec 30, 2022	202.56B	-19.53%
Dec 31, 2021	251.74B	50.83%
Dec 31, 2020	166.90B	28.54%
Dec 31, 2019	129.84B	44.70%
Dec 31, 2018	89.73B	9.80%
Dec 29, 2017	81.73B	16.21%
Dec 30, 2016	70.33B	-0.98%
Dec 31, 2015	71.02B	13.74%
Dec 31, 2014	62.44B	19.31%
Dec 31, 2013	52.34B	21.68%
Dec 31, 2012	43.01B	18.69%
Dec 30, 2011	36.24B	14.96%
Dec 31, 2010	31.52B	21.26%
Dec 31, 2009	26.00B	14.29%
Dec 31, 2008	22.75B	-25.00%
Dec 31, 2007	30.33B	26.82%
Dec 29, 2006	23.91B	2.17%
Dec 30, 2005	23.41B	2.36%
Dec 31, 2004	22.87B	34.37%
Dec 31, 2003	17.02B	33.07%
Dec 31, 2002	12.79B	-36.30%

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Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

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