ESI vs MKSI: Correlation
Element Solutions Inc. (ESI) and MKS Inc. (MKSI) show a strong relationship: their 3-year correlation of weekly returns is 0.72.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ESI and MKSI?
On 3 years of weekly data the ESI/MKSI correlation comes out at 0.72, strong. Little has changed lately, as the 1-year reading of 0.71 lands near the 3-year figure. The 5-year figure is 0.70, and annualized covariance runs at 1203.8 %².
Few assets follow ESI as closely as MKSI, which ranks #1 of 18 tracked partners. The last year tells two different stories: MKSI led by 114.2 percentage points, +43.3% for ESI against +157.5% for MKSI. Note the risk asymmetry: MKSI runs 1.5 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
ESI vs MKSI: side by side
| ESI (Element Solutions Inc.) | MKSI (MKS Inc.) | |
|---|---|---|
| 1-year return | +43.3% | +157.5% |
| 5-year return | +67.5% | +88.2% |
| Volatility (ann.) | 32.8% | 50.8% |
| Beta vs S&P 500 | 1.26 | 2.39 |
| Max drawdown (3Y) | -40.0% | -59.1% |
| Market cap | $8.9B | $18.3B |
| P/E (trailing) | 49.4 | 43.3 |
| Dividend yield | 0.89% | 0.35% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ESI | MKSI |
|---|---|---|
| 2022 | -23.9% | -51.0% |
| 2023 | +29.3% | +22.6% |
| 2024 | +11.3% | +2.2% |
| 2025 | -0.4% | +54.4% |
| 2026 | +46.7% | +70.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ESI and MKSI good diversifiers for each other?
To a limited degree. At 0.72 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 ESI and MKSI?
Using weekly returns as of 2026-08-27: 0.72 over 3 years, with 0.71 over the last year and 0.70 over 5 years.
Is MKSI a good diversifier for ESI?
To a limited degree. At 0.72 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 0.72 mean?
A reading of 0.72 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/esi-vs-mksi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/esi-vs-mksi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ESI correlations · MKSI correlations
