OII - CIK 0000073756
As of 2026-06-11, OCEANEERING INTERNATIONAL INC (OII) has a market capitalization of $3.92 B, making it the #1586 most valuable US-listed company.
| Date | Market cap |
|---|---|
| 2026-06-11 | $3.92 B |
| 2026-06-10 | $3.92 B |
| 2026-05-29 | $3.78 B |
| 2026-05-28 | $3.87 B |
| 2026-05-26 | $3.89 B |
| 2026-05-25 | $3.87 B |
| 2026-05-24 | $3.87 B |
| 2026-05-22 | $3.87 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.
As of 2026-06-11, OCEANEERING INTERNATIONAL INC (OII) has a market capitalization of $3.92 B, making it the #1586 most valuable US-listed company.
OCEANEERING INTERNATIONAL INC is the #1586 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.