KLIC vs MKSI: Correlation
How closely do Kulicke and Soffa Industries, Inc. (KLIC) and MKS Inc. (MKSI) trade together? Their weekly returns over three years give a correlation of 0.72, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KLIC and MKSI?
Over the past 3 years, KLIC and MKSI moved with a correlation of 0.72, which is strong. Little has changed lately, as the 1-year reading of 0.68 lands near the 3-year figure. Over 5 years the correlation is 0.69, and the annualized covariance of weekly returns is 1616.6 %².
Few assets follow KLIC as closely as MKSI, which ranks #2 of 20 tracked partners. The last year tells two different stories: MKSI led by 29.2 percentage points, +128.3% for KLIC against +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.
KLIC vs MKSI: side by side
| KLIC (Kulicke and Soffa Industries, Inc.) | MKSI (MKS Inc.) | |
|---|---|---|
| 1-year return | +128.3% | +157.5% |
| 5-year return | +30.7% | +88.2% |
| Volatility (ann.) | 43.9% | 50.8% |
| Beta vs S&P 500 | 1.49 | 2.39 |
| Max drawdown (3Y) | -49.3% | -59.1% |
| Market cap | $4.4B | $18.3B |
| P/E (trailing) | 38.8 | 43.3 |
| Dividend yield | 0.97% | 0.35% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KLIC | MKSI |
|---|---|---|
| 2022 | -25.8% | -51.0% |
| 2023 | +25.5% | +22.6% |
| 2024 | -13.2% | +2.2% |
| 2025 | -0.3% | +54.4% |
| 2026 | +86.8% | +70.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KLIC and MKSI good diversifiers for each other?
Somewhat, no more. With 0.72 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between KLIC and MKSI?
Using weekly returns as of 2026-08-27: 0.72 over 3 years, with 0.68 over the last year and 0.69 over 5 years.
Is MKSI a good diversifier for KLIC?
Somewhat, no more. With 0.72 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.72 mean?
On the −1 to +1 scale, 0.72 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/klic-vs-mksi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/klic-vs-mksi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: KLIC correlations · MKSI correlations
