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COSTCO WHOLESALE CORP /NEW
COST - CIK 0000909832
Market cap$436.27 B
Rank#25
SEC filings1,001
Market capitalization of COSTCO WHOLESALE CORP /NEW
As of 2026-06-11, COSTCO WHOLESALE CORP /NEW (COST) has a market capitalization of $436.27 B, making it the #25 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-11 | $436.27 B |
| 2026-06-10 | $436.06 B |
| 2026-05-29 | $420.21 B |
| 2026-05-28 | $445.29 B |
| 2026-05-26 | $443.61 B |
| 2026-05-25 | $456.18 B |
| 2026-05-24 | $456.18 B |
| 2026-05-22 | $456.18 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
Market Cap of similar companies
Frequently asked questions
What is COSTCO WHOLESALE CORP /NEW's market cap?
As of 2026-06-11, COSTCO WHOLESALE CORP /NEW (COST) has a market capitalization of $436.27 B, making it the #25 most valuable US-listed company.
Where does COSTCO WHOLESALE CORP /NEW rank by market cap?
COSTCO WHOLESALE CORP /NEW is the #25 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.