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WESTLAKE CORP
WLK - CIK 0001262823
Market cap$11.34 B
Rank#876
SEC filings1,689
Market capitalization of WESTLAKE CORP
As of 2026-06-11, WESTLAKE CORP (WLK) has a market capitalization of $11.34 B, making it the #876 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-06-11 | $11.34 B |
| 2026-06-10 | $11.16 B |
| 2026-05-29 | $11.09 B |
| 2026-05-28 | $11.25 B |
| 2026-05-26 | $11.36 B |
| 2026-05-25 | $11.35 B |
| 2026-05-24 | $11.35 B |
| 2026-05-22 | $11.35 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 WESTLAKE CORP's market cap?
As of 2026-06-11, WESTLAKE CORP (WLK) has a market capitalization of $11.34 B, making it the #876 most valuable US-listed company.
Where does WESTLAKE CORP rank by market cap?
WESTLAKE CORP is the #876 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.