EMN vs IOSP: Correlation
Measured on weekly returns over the past three years, Eastman Chemical Company (EMN) and Innospec Inc. (IOSP) carry a correlation of 0.67, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EMN and IOSP?
Over the past 3 years, EMN and IOSP moved with a correlation of 0.67, which is strong. Little has changed lately, as the 1-year reading of 0.73 lands near the 3-year figure. Over 5 years the correlation is 0.65, and the annualized covariance of weekly returns is 540.5 %².
In EMN's tracked universe of 22 assets, IOSP sits right near the top at #3. Their 12-month results are close: +10.8% for EMN against +11.3% for IOSP.
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.
EMN vs IOSP: side by side
| EMN (Eastman Chemical Company) | IOSP (Innospec Inc.) | |
|---|---|---|
| 1-year return | +10.8% | +11.3% |
| 5-year return | -22.9% | +10.2% |
| Volatility (ann.) | 30.5% | 26.6% |
| Beta vs S&P 500 | 0.95 | 0.94 |
| Max drawdown (3Y) | -48.4% | -48.4% |
| Market cap | $8.3B | $2.3B |
| P/E (trailing) | 18.9 | 19.5 |
| Dividend yield | 4.59% | 1.87% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EMN | IOSP |
|---|---|---|
| 2022 | -30.4% | +15.2% |
| 2023 | +14.7% | +21.5% |
| 2024 | +5.1% | -9.6% |
| 2025 | -26.9% | -28.9% |
| 2026 | +16.5% | +26.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EMN and IOSP good diversifiers for each other?
To a limited degree. At 0.67 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between EMN and IOSP?
Using weekly returns as of 2026-08-27: 0.67 over 3 years, with 0.73 over the last year and 0.65 over 5 years.
Is IOSP a good diversifier for EMN?
To a limited degree. At 0.67 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.67 mean?
On the −1 to +1 scale, 0.67 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/emn-vs-iosp.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/emn-vs-iosp/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: EMN correlations · IOSP correlations
