DD vs IOSP: Correlation
Measured on weekly returns over the past three years, DuPont (DD) and Innospec Inc. (IOSP) carry a correlation of 0.56, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DD and IOSP?
Across a 3-year window, the weekly returns of DD and IOSP correlate at 0.56, moderate. Recent behaviour matches the longer record: 0.60 over 1 year against 0.56 over 3. Stretching to 5 years gives 0.57, with an annualized covariance of 433.3 %².
By 3-year correlation, IOSP places #8 of the 34 assets tracked against DD. Their recent paths diverged sharply: over the last 12 months DD outperformed by 33.4 percentage points (+44.7% for DD 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.
DD vs IOSP: side by side
| DD (DuPont) | IOSP (Innospec Inc.) | |
|---|---|---|
| 1-year return | +44.7% | +11.3% |
| 5-year return | +64.0% | +10.2% |
| Volatility (ann.) | 28.8% | 26.6% |
| Beta vs S&P 500 | 0.93 | 0.94 |
| Max drawdown (3Y) | -37.8% | -48.4% |
| Market cap | $18.7B | $2.3B |
| P/E (trailing) | 59.1 | 19.5 |
| Dividend yield | 2.20% | 1.87% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | DD | IOSP |
|---|---|---|
| 2022 | -13.4% | +15.2% |
| 2023 | +14.4% | +21.5% |
| 2024 | +1.0% | -9.6% |
| 2025 | +28.7% | -28.9% |
| 2026 | +16.0% | +26.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DD and IOSP good diversifiers for each other?
Only partially. A correlation of 0.56 means DD and IOSP share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between DD and IOSP?
The DD/IOSP correlation stands at 0.56 on a 3-year window (1 year: 0.60, 5 years: 0.57), computed from weekly returns as of 2026-08-27.
Is IOSP a good diversifier for DD?
Only partially. A correlation of 0.56 means DD and IOSP share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.56 mean?
A reading of 0.56 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/dd-vs-iosp.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/dd-vs-iosp/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: DD correlations · IOSP correlations
