AMAT vs MKSI: Correlation
Applied Materials (AMAT) and MKS Inc. (MKSI) show a strong relationship: their 3-year correlation of weekly returns is 0.79.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMAT and MKSI?
Over the past 3 years, AMAT and MKSI moved with a correlation of 0.79, which is strong. Recent behaviour matches the longer record: 0.77 over 1 year against 0.79 over 3. Over 5 years the correlation is 0.79, and the annualized covariance of weekly returns is 1755.0 %².
Among the 34 assets we track against AMAT, MKSI ranks #6 by 3-year correlation. The last year tells two different stories: AMAT led by 37.5 percentage points, +195.0% for AMAT 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.
AMAT vs MKSI: side by side
| AMAT (Applied Materials) | MKSI (MKS Inc.) | |
|---|---|---|
| 1-year return | +195.0% | +157.5% |
| 5-year return | +269.5% | +88.2% |
| Volatility (ann.) | 43.5% | 50.8% |
| Beta vs S&P 500 | 1.69 | 2.39 |
| Max drawdown (3Y) | -49.9% | -59.1% |
| Market cap | $382.8B | $18.3B |
| P/E (trailing) | 41.3 | 43.3 |
| Dividend yield | 0.41% | 0.35% |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | AMAT | MKSI |
|---|---|---|
| 2022 | -37.5% | -51.0% |
| 2023 | +68.0% | +22.6% |
| 2024 | +1.1% | +2.2% |
| 2025 | +59.6% | +54.4% |
| 2026 | +88.4% | +70.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMAT and MKSI good diversifiers for each other?
To a limited degree. At 0.79 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 AMAT and MKSI?
The AMAT/MKSI correlation stands at 0.79 on a 3-year window (1 year: 0.77, 5 years: 0.79), computed from weekly returns as of 2026-08-27.
Is MKSI a good diversifier for AMAT?
To a limited degree. At 0.79 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 0.79 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/amat-vs-mksi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/amat-vs-mksi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AMAT correlations · MKSI correlations
