COHU vs MKSI: Correlation
Cohu, Inc. (COHU) and MKS Inc. (MKSI) show a strong relationship: their 3-year correlation of weekly returns is 0.75.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COHU and MKSI?
On 3 years of weekly data the COHU/MKSI correlation comes out at 0.75, strong. The relationship has been stable: the 1-year correlation (0.73) sits close to the 3-year figure. The 5-year figure is 0.73, and annualized covariance runs at 1702.7 %².
In COHU's tracked universe of 24 assets, MKSI sits right near the top at #2. Twelve-month performance is nearly a tie, at +154.8% for COHU and +157.5% for MKSI.
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.
COHU vs MKSI: side by side
| COHU (Cohu, Inc.) | MKSI (MKS Inc.) | |
|---|---|---|
| 1-year return | +154.8% | +157.5% |
| 5-year return | +41.3% | +88.2% |
| Volatility (ann.) | 44.8% | 50.8% |
| Beta vs S&P 500 | 1.74 | 2.39 |
| Max drawdown (3Y) | -64.7% | -59.1% |
| Market cap | $2.4B | $18.3B |
| P/E (trailing) | – | 43.3 |
| Dividend yield | 0.00% | 0.35% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | COHU | MKSI |
|---|---|---|
| 2022 | -15.9% | -51.0% |
| 2023 | +10.4% | +22.6% |
| 2024 | -24.6% | +2.2% |
| 2025 | -12.8% | +54.4% |
| 2026 | +122.1% | +70.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COHU and MKSI good diversifiers for each other?
To a limited degree. At 0.75 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 COHU and MKSI?
Using weekly returns as of 2026-08-27: 0.75 over 3 years, with 0.73 over the last year and 0.73 over 5 years.
Is MKSI a good diversifier for COHU?
To a limited degree. At 0.75 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 0.75 mean?
A reading of 0.75 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/cohu-vs-mksi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/cohu-vs-mksi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: COHU correlations · MKSI correlations
