Costco Wholesale Corporation (COST)

NASDAQ: COST · Real-Time Price · USD

994.00

-4.01 (-0.40%)

At close: Apr 28, 2026, 4:00 PM EDT

991.57

-2.43 (-0.24%)

After-hours: Apr 28, 2026, 7:58 PM EDT

Costco Market Cap

Costco has a market cap or net worth of $440.99 billion as of April 28, 2026. Its market cap has increased by 3.17% in one year.

Market Cap

440.99B

Enterprise Value

431.09B

1-Year Change

3.17%

Ranking

#24

Market Cap Chart

Since December 1, 1998, Costco's market cap has increased from $13.65B to $440.99B, an increase of 3,130.51%. That is a compound annual growth rate of 13.51%.

Market Cap History

Date	Market Cap	% Change
Apr 28, 2026	440.99B	15.21%
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

Full Definition

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Market Cap Rankings