IOSP Innospec Inc.
NASDAQActiveCommon stock
IOSP is the ticker symbol of Innospec Inc., which is listed on NASDAQ.
IOSP at a glance
- Symbol
- IOSP
- Company / issuer
- Innospec Inc.
- Security type
- Common stock
- Exchange
- NASDAQ
- Status
- Actively traded
- Seen in listing files
- Jan 2015 – present
- Sector
- Industrials
- Industry
- Major Chemicals
- Country
- United States
- Market cap
- $2.4 billion (Sep 2026)
Innospec Inc. company profile
- Industry (SIC)
- Chemicals & Allied Products
- Headquarters
- Englewood, CO
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC filer category
- Large accelerated filer
- Latest annual report
- 10-K filed 2026-02-18
- Latest interim report
- 10-Q filed 2026-08-05
- SEC CIK
- 1054905
Former company names
- Octel Corp (until 2006)
Source: SEC EDGAR filer data.
IOSP price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol IOSP?
IOSP is the ticker symbol of Innospec Inc on NASDAQ.
Is IOSP still trading?
Yes. IOSP appears in the current NASDAQ listings as of Sep 2026.
Which exchange is IOSP listed on?
IOSP is listed on NASDAQ.