Market Cap for Costco (COST)
According to Costco's latest reported financial statements, the company's latest reported market cap is $452.73B USD. 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 .
COST
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Latest period
$452.73B
YoY change
+5.8%
5Y CAGR
+17.3%
Peak year (2026)
$443.92B
Latest annual
$443.92B
Market Cap history chart for Costco (COST) from 1986 to 2026
Market Cap history table for Costco (COST) from 1986 to 2026
| Fiscal year | Period ended | Reported | Market Cap | YoY |
|---|---|---|---|---|
| 2026 | $443.92B | +5.8% | ||
| 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 (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
2026's annual market cap for Costco (COST) came in at $443.92B – grew 5.8% year-over-year.
Through 2021–2026 (5 years), Costco market cap delivered a +17.3% annualised rate; sustaining 9 straight years of year-over-year growth.
$443.92B stands as the all-time-high annual market cap, posted in 2026, against a low of $396.59M during 1986.
Within Consumer Defensive, Costco (COST) ranks 2nd among 8 peers we track. The peer median for market cap is $236.09B.
Costco Market Cap by Year
Costco Market Cap 2026: $443.92B
Costco market cap in 2026 was $443.92B, grew 5.8% from 2025. This figure represents the highest annual value in the available history.
Costco Market Cap 2025: $419.59B
Costco market cap in 2025 was $419.59B, grew 5.7% from 2024.
Costco Market Cap 2024: $396.89B
Costco market cap in 2024 was $396.89B, surged 64.1% from 2023.
Costco Market Cap 2023: $241.89B
Costco market cap in 2023 was $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 — Market Cap
Companies in the same sector as Costco, ranked by their latest market cap.
| Company | Market Cap | Sector |
|---|---|---|
| Walmart Inc. (WMT) | $1.02T | Consumer Defensive |
| The Procter & Gamble Company (PG) | $348.62B | Consumer Defensive |
| The Coca-Cola Company (KO) | $337.23B | Consumer Defensive |
| Philip Morris International Inc. (PM) | $258.54B | Consumer Defensive |
| PepsiCo, Inc. (PEP) | $213.64B | Consumer Defensive |
| Altria Group, Inc. (MO) | $113.35B | Consumer Defensive |
| Monster Beverage Corporation (MNST) | $75.48B | Consumer Defensive |
| Mondelez International, Inc. (MDLZ) | $75.13B | Consumer Defensive |
Frequently asked questions
What is Costco's market cap?
- Latest reported market cap for Costco (COST) is $452.73B (period ending February 15, 2026).
How has Costco market cap changed year-over-year?
- Costco (COST) market cap changed +5.8% year-over-year on the latest annual filing.
What is the long-term growth rate of Costco market cap?
- Costco (COST) market cap compound annual growth rate is +17.3% over the most recent 5 years available.
When did Costco market cap hit its highest annual value?
- Costco market cap reached its highest annual value of $443.92B in 2026.
What was Costco market cap in 2025?
- Costco (COST) market cap in 2025 was $419.59B.
What was Costco market cap in 2026?
- Costco (COST) market cap in 2026 was $443.92B.
Metrics overview
Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.
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