Current
$435.30B
5-Year Average
$313.90B
All-Time High
$486.44B
All-Time Low
$13.04B
Market cap daily chart for Costco (COST)
Jun 16, 2021 – Jun 15, 2026 · 1,255 trading days
Market Cap growth chart for Costco (COST) from 1986 to 2026
Latest: +3.7%
Market Cap history table for Costco (COST) from 1986 to 2026
| 2026 | $435.30B | +3.7% | +$15.71B | ||
| 2025 | $419.59B | +5.7% | +$22.70B | ||
| 2024 | $396.89B | +64.1% | +$155.00B | ||
| 2023 | $241.89B | +2.3% | +$5.36B | ||
| 2022 | $236.53B | +18.2% | +$36.42B | ||
| 2021 | $200.11B | +29.4% | +$45.46B | ||
| 2020 | $154.64B | +18.4% | +$24.09B | ||
| 2019 | $130.56B | +26.7% | +$27.55B | ||
| 2018 | $103.00B | +49.0% | +$33.89B | ||
| 2017 | $69.11B | -3.4% | −$2.41B | ||
| 2016 | $71.52B | +15.4% | +$9.52B | ||
| 2015 | $62.00B | +15.7% | +$8.43B | ||
| 2014 | $53.58B | +8.7% | +$4.30B | ||
| 2013 | $49.28B | +14.6% | +$6.28B | ||
| 2012 | $43.00B | +23.6% | +$8.20B | ||
| 2011 | $34.80B | +38.1% | +$9.60B | ||
| 2010 | $25.20B | +12.2% | +$2.74B | ||
| 2009 | $22.45B | -24.6% | −$7.34B | ||
| 2008 | $29.79B | +5.4% | +$1.53B | ||
| 2007 | $28.26B | +25.7% | +$5.78B | ||
| 2006 | $22.48B | +5.2% | +$1.12B | ||
| 2005 | $21.35B | +7.5% | +$1.49B | ||
| 2004 | $19.86B | +30.7% | +$4.67B | ||
| 2003 | $15.20B | -5.1% | −$814.59M | ||
| 2002 | $16.01B | -10.0% | −$1.79B | ||
| 2001 | $17.80B | +8.6% | +$1.42B | ||
| 2000 | $16.38B | -7.0% | −$1.23B | ||
| 1999 | $17.61B | +61.5% | +$6.71B | ||
| 1998 | $10.90B | +43.3% | +$3.30B | ||
| 1997 | $7.61B | +87.6% | +$3.55B | ||
| 1996 | $4.05B | +22.1% | +$732.83M | ||
| 1995 | $3.32B | -2.0% | −$67.90M | ||
| 1994 | $3.39B | -17.4% | −$713.12M | ||
| 1993 | $4.10B | +40.3% | +$1.18B | ||
| 1992 | $2.92B | -32.6% | −$1.41B | ||
| 1991 | $4.34B | +236.9% | +$3.05B | ||
| 1990 | $1.29B | +30.4% | +$300.01M | ||
| 1989 | $987.25M | +93.2% | +$476.16M | ||
| 1988 | $511.10M | +20.8% | +$88.05M | ||
| 1987 | $423.05M | +6.7% | +$26.45M | ||
| 1986 | $396.59M | — | — |
- 2026$435.30B+3.7%
- 2025$419.59B+5.7%
- 2024$396.89B+64.1%
- 2023$241.89B+2.3%
- 2022$236.53B+18.2%
- 2021$200.11B+29.4%
- 2020$154.64B+18.4%
- 2019$130.56B+26.7%
- 2018$103.00B+49.0%
- 2017$69.11B-3.4%
- 2016$71.52B+15.4%
- 2015$62.00B+15.7%
- 2014$53.58B+8.7%
- 2013$49.28B+14.6%
- 2012$43.00B+23.6%
- 2011$34.80B+38.1%
- 2010$25.20B+12.2%
- 2009$22.45B-24.6%
- 2008$29.79B+5.4%
- 2007$28.26B+25.7%
- 2006$22.48B+5.2%
- 2005$21.35B+7.5%
- 2004$19.86B+30.7%
- 2003$15.20B-5.1%
- 2002$16.01B-10.0%
- 2001$17.80B+8.6%
- 2000$16.38B-7.0%
- 1999$17.61B+61.5%
- 1998$10.90B+43.3%
- 1997$7.61B+87.6%
- 1996$4.05B+22.1%
- 1995$3.32B-2.0%
- 1994$3.39B-17.4%
- 1993$4.10B+40.3%
- 1992$2.92B-32.6%
- 1991$4.34B+236.9%
- 1990$1.29B+30.4%
- 1989$987.25M+93.2%
- 1988$511.10M+20.8%
- 1987$423.05M+6.7%
- 1986$396.59M—
Market Cap values are taken from Costco's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at Costco (COST)
According to Costco's latest reported financial statements, the company's latest reported market cap is $448.34B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
2026's annual market cap for Costco (COST) came in at $435.30B – edged up 3.7% year-over-year.
Through 2021–2026 (5 years), Costco market cap delivered a +16.8% annualised rate; sustaining 9 straight years of year-over-year growth.
$435.30B stands as the all-time-high annual market cap, posted in 2026, against a low of $396.59M during 1986.
Costco Market Cap by Year
Costco Market Cap 2026: $435.30B
Costco market cap in 2026 was $435.30B, edged up 3.7% from 2025. This figure represents the highest annual value in the available history.
Costco Market Cap 2025: $419.59B
2025's market cap for Costco came in at $419.59B, grew 5.7% from 2024.
Costco Market Cap 2024: $396.89B
Costco posted market cap of $396.89B in 2024, surged 64.1% from 2023.
Costco Market Cap 2023: $241.89B
In 2023, Costco reported market cap of $241.89B, edged up 2.3% from 2022.
Costco Market Cap 2022: $236.53B
Costco market cap in 2022 was $236.53B.
See more financial history for Costco (COST).
Sector peers by Market Cap
Consumer Defensive peers of Costco (COST), ranked by their latest market cap
| $961.50B | |
| $350.42B | |
| $348.11B | |
| $283.36B | |
| $199.92B | |
| $116.21B | |
| $91.18B | |
| $78.94B |
- $961.50B
- $350.42B
- $348.11B
- $283.36B
- $199.92B
- $116.21B
- $91.18B
Frequently asked questions
Costco (COST) Key Financials
Charts, filings, and peer comparison for every metric
Explore more
Deep-dives across the income statement, cash flow, capital return, and valuation