IOSP vs OEC: Correlation
Measured on weekly returns over the past three years, Innospec Inc. (IOSP) and Orion S.A. (OEC) carry a correlation of 0.58, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IOSP and OEC?
Over the past 3 years, IOSP and OEC moved with a correlation of 0.58, which is moderate. The link has tightened recently: the 1-year correlation (0.68) runs above the 3-year figure (0.58). Over 5 years the correlation is 0.55, and the annualized covariance of weekly returns is 795.0 %².
By 3-year correlation, OEC places #14 of the 35 assets tracked against IOSP. Correlation aside, the last 12 months split them widely, with IOSP ahead by 50.5 points (+11.3% versus -39.2%). Risk is not evenly split, since OEC carries 2.0 times the volatility of the other side.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
IOSP vs OEC: side by side
| IOSP (Innospec Inc.) | OEC (Orion S.A.) | |
|---|---|---|
| 1-year return | +11.3% | -39.2% |
| 5-year return | +10.2% | -64.2% |
| Volatility (ann.) | 26.6% | 51.9% |
| Beta vs S&P 500 | 0.94 | 1.04 |
| Max drawdown (3Y) | -48.4% | -84.5% |
| Market cap | $2.3B | $0.4B |
| P/E (trailing) | 19.5 | – |
| Dividend yield | 1.87% | 1.35% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IOSP | OEC |
|---|---|---|
| 2022 | +15.2% | -2.4% |
| 2023 | +21.5% | +56.2% |
| 2024 | -9.6% | -42.8% |
| 2025 | -28.9% | -66.4% |
| 2026 | +26.0% | +20.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IOSP and OEC good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between IOSP and OEC?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.68 over the last year and 0.55 over 5 years.
Is OEC a good diversifier for IOSP?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
A reading of 0.58 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/iosp-vs-oec.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/iosp-vs-oec/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IOSP correlations · OEC correlations
