KLAC vs SOXX: Correlation
How closely do KLA Corporation (KLAC) and iShares Semiconductor ETF (SOXX) trade together? Their weekly returns over three years give a correlation of 0.82, which is very strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KLAC and SOXX?
On 3 years of weekly data the KLAC/SOXX correlation comes out at 0.82, very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.76) sits close to the 3-year figure. The 5-year figure is 0.85, and annualized covariance runs at 1315.0 %².
SOXX is one of the assets that tracks KLAC most closely: it ranks #3 out of the 40 assets we track against KLAC. Neither side won the trailing year by much: +107.9% against +110.0%. Stability stands out here, with the rolling one-year correlation confined to 0.72 through 0.93.
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.
KLAC vs SOXX: side by side
| KLAC (KLA Corporation) | SOXX (iShares Semiconductor ETF) | |
|---|---|---|
| 1-year return | +107.9% | +110.0% |
| 5-year return | +463.9% | +247.5% |
| Volatility (ann.) | 45.6% | 35.2% |
| Beta vs S&P 500 | 1.84 | 1.93 |
| Max drawdown (3Y) | -43.6% | -41.4% |
| Market cap | $240.1B | – |
| P/E (trailing) | 50.2 | – |
| Dividend yield | 0.44% | 0.29% |
| Expense ratio | – | 0.33% |
| Assets under management | – | $44.7B |
| Sector / category | Information Technology | 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 | KLAC | SOXX |
|---|---|---|
| 2022 | -11.2% | -35.1% |
| 2023 | +56.0% | +67.1% |
| 2024 | +9.4% | +12.9% |
| 2025 | +94.5% | +40.7% |
| 2026 | +51.8% | +74.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 4.27% of SOXX is KLAC itself, so the fund partly moves with the stock by construction.
Are KLAC and SOXX good diversifiers for each other?
No: a correlation of 0.82 means KLAC and SOXX tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between KLAC and SOXX?
As of 2026-08-27, the correlation of weekly returns between KLAC and SOXX is 0.82 over 3 years, 0.76 over 1 year and 0.85 over 5 years.
Is SOXX a good diversifier for KLAC?
No: a correlation of 0.82 means KLAC and SOXX tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.82 mean?
A reading of 0.82 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/klac-vs-soxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/klac-vs-soxx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: KLAC correlations · SOXX correlations
