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INNOSPEC INC.
IOSP - Company ID 0001054905
Market cap$2.31 B
Rank#2038
Filings1,749
Market capitalization of INNOSPEC INC.
As of 2026-09-07, INNOSPEC INC. (IOSP) has a market capitalization of $2.31 B, making it the #2038 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-09-07 | $2.31 B |
| 2026-09-06 | $2.31 B |
| 2026-09-05 | $2.31 B |
| 2026-09-04 | $2.31 B |
| 2026-09-03 | $2.29 B |
| 2026-09-02 | $2.31 B |
| 2026-09-01 | $2.29 B |
| 2026-08-31 | $2.31 B |
| 2026-08-30 | $2.35 B |
| 2026-08-29 | $2.35 B |
| 2026-08-28 | $2.35 B |
| 2026-08-27 | $2.35 B |
Market Cap of similar companies
Frequently asked questions
What is INNOSPEC INC.'s market cap?
As of 2026-09-07, INNOSPEC INC. (IOSP) has a market capitalization of $2.31 B, making it the #2038 most valuable US-listed company.
Where does INNOSPEC INC. rank by market cap?
INNOSPEC INC. is the #2038 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.