MKSI vs SOXX: Correlation
MKS Inc. (MKSI) and iShares Semiconductor ETF (SOXX) show a very strong relationship: their 3-year correlation of weekly returns is 0.83.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MKSI and SOXX?
Across a 3-year window, the weekly returns of MKSI and SOXX correlate at 0.83, very strong, meaning they move nearly in lockstep. Little has changed lately, as the 1-year reading of 0.76 lands near the 3-year figure. Stretching to 5 years gives 0.83, with an annualized covariance of 1490.8 %².
In MKSI's tracked universe of 41 assets, SOXX sits right near the top at #2. The last year tells two different stories: MKSI led by 47.5 percentage points, +157.5% for MKSI against +110.0% for SOXX.
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.
MKSI vs SOXX: side by side
| MKSI (MKS Inc.) | SOXX (iShares Semiconductor ETF) | |
|---|---|---|
| 1-year return | +157.5% | +110.0% |
| 5-year return | +88.2% | +247.5% |
| Volatility (ann.) | 50.8% | 35.2% |
| Beta vs S&P 500 | 2.39 | 1.93 |
| Max drawdown (3Y) | -59.1% | -41.4% |
| Market cap | $18.3B | – |
| P/E (trailing) | 43.3 | – |
| Dividend yield | 0.35% | 0.29% |
| Expense ratio | – | 0.33% |
| Assets under management | – | $44.7B |
| Sector / category | US Listed | ETF · Thematic |
On the fund side, SOXX sits in the Technology category at iShares, with $44.7B under management, 30 holdings, a 0.33% expense ratio, a 0.29% trailing dividend yield.
Year-by-year returns
| Year | MKSI | SOXX |
|---|---|---|
| 2022 | -51.0% | -35.1% |
| 2023 | +22.6% | +67.1% |
| 2024 | +2.2% | +12.9% |
| 2025 | +54.4% | +40.7% |
| 2026 | +70.0% | +74.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MKSI and SOXX good diversifiers for each other?
Not really. At 0.83, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between MKSI and SOXX?
Using weekly returns as of 2026-08-27: 0.83 over 3 years, with 0.76 over the last year and 0.83 over 5 years.
Is SOXX a good diversifier for MKSI?
Not really. At 0.83, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.83 mean?
On the −1 to +1 scale, 0.83 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/mksi-vs-soxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mksi-vs-soxx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MKSI correlations · SOXX correlations
