Market capitalization of Costco (COST)

Market cap: S$619.10 Billion

As of November 2026 Costco has a market cap of S$619.10 Billion. This makes Costco the world's 26th 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 Costco from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	S$619.10 B	24.37%
2025	S$497.80 B	-12.2%
2024	S$566.99 B	46.58%
2023	S$386.82 B	42.41%
2022	S$271.62 B	-20.19%
2021	S$340.32 B	54.14%
2020	S$220.79 B	26.13%
2019	S$175.04 B	42.8%
2018	S$122.58 B	12.15%
2017	S$109.30 B	7.39%
2016	S$101.78 B	1.31%
2015	S$100.46 B	21.77%
2014	S$82.50 B	24.43%
2013	S$66.30 B	26.07%
2012	S$52.59 B	12.08%
2011	S$46.93 B	15.58%
2010	S$40.60 B	11.26%
2009	S$36.49 B	12.2%
2008	S$32.52 B	-25.47%
2007	S$43.64 B	19.02%
2006	S$36.66 B	-5.91%
2005	S$38.97 B	4.46%
2004	S$37.30 B	28.93%
2003	S$28.93 B	30.39%
2002	S$22.19 B	-40.29%
2001	S$37.16 B	19.84%
2000	S$31.01 B	-8.11%
1999	S$33.75 B	29.79%
1998	S$26.00 B	61.32%
1997	S$16.12 B	133.14%
1996	S$6.91 B

End of Day market cap according to different sources

On Nov 11th, 2026 the market cap of Costco was reported to be:

S$619.10 Billion

by Nasdaq

S$619.10 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Walmart WMT	S$1.280 T	106.87%	🇺🇸 USA
Dollar General DG	S$38.95 B	-93.71%	🇺🇸 USA
Dollar Tree DLTR	S$34.44 B	-94.44%	🇺🇸 USA
Target TGT	S$94.94 B	-84.66%	🇺🇸 USA
PriceSmart PSMT	S$6.61 B	-98.93%	🇺🇸 USA
Five Below FIVE	S$17.73 B	-97.14%	🇺🇸 USA
Big Lots BIG	S$18.94 M	-100.00%	🇺🇸 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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