DD vs MKSI: Correlation
How closely do DuPont (DD) and MKS Inc. (MKSI) trade together? Their weekly returns over three years give a correlation of 0.55, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DD and MKSI?
Over the past 3 years, DD and MKSI moved with a correlation of 0.55, which is moderate. Little has changed lately, as the 1-year reading of 0.52 lands near the 3-year figure. Over 5 years the correlation is 0.55, and the annualized covariance of weekly returns is 799.4 %².
By 3-year correlation, MKSI places #13 of the 34 assets tracked against DD. The last year tells two different stories: MKSI led by 112.8 percentage points, +44.7% for DD against +157.5% for MKSI. One caveat on sizing: MKSI is 1.8 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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 MKSI: side by side
| DD (DuPont) | MKSI (MKS Inc.) | |
|---|---|---|
| 1-year return | +44.7% | +157.5% |
| 5-year return | +64.0% | +88.2% |
| Volatility (ann.) | 28.8% | 50.8% |
| Beta vs S&P 500 | 0.93 | 2.39 |
| Max drawdown (3Y) | -37.8% | -59.1% |
| Market cap | $18.7B | $18.3B |
| P/E (trailing) | 59.1 | 43.3 |
| Dividend yield | 2.20% | 0.35% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | DD | MKSI |
|---|---|---|
| 2022 | -13.4% | -51.0% |
| 2023 | +14.4% | +22.6% |
| 2024 | +1.0% | +2.2% |
| 2025 | +28.7% | +54.4% |
| 2026 | +16.0% | +70.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DD and MKSI good diversifiers for each other?
Only partially. A correlation of 0.55 means DD and MKSI 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 MKSI?
Using weekly returns as of 2026-08-27: 0.55 over 3 years, with 0.52 over the last year and 0.55 over 5 years.
Is MKSI a good diversifier for DD?
Only partially. A correlation of 0.55 means DD and MKSI share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.55 mean?
A reading of 0.55 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-mksi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/dd-vs-mksi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: DD correlations · MKSI correlations
