COHR vs SOXX: Correlation
Measured on weekly returns over the past three years, Coherent Corp. (COHR) and iShares Semiconductor ETF (SOXX) carry a correlation of 0.63, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COHR and SOXX?
Over the past 3 years, COHR and SOXX moved with a correlation of 0.63, which is strong. Lately the two have drifted apart, with the 1-year correlation at 0.43 versus 0.63 over 3 years. Over 5 years the correlation is 0.64, and the annualized covariance of weekly returns is 1438.6 %².
Among the 41 assets we track against COHR, SOXX ranks #5 by 3-year correlation. Correlation aside, the last 12 months split them widely, with COHR ahead by 115.6 points (+225.6% versus +110.0%). This link changes with the market regime, having swung between 0.26 and 0.81 on a rolling one-year basis. Risk is not evenly split, since COHR carries 1.8 times the volatility of the other side.
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.
COHR vs SOXX: side by side
| COHR (Coherent Corp.) | SOXX (iShares Semiconductor ETF) | |
|---|---|---|
| 1-year return | +225.6% | +110.0% |
| 5-year return | +368.6% | +247.5% |
| Volatility (ann.) | 65.0% | 35.2% |
| Beta vs S&P 500 | 2.76 | 1.93 |
| Max drawdown (3Y) | -54.8% | -41.4% |
| Market cap | $57.8B | – |
| P/E (trailing) | 71.4 | – |
| Dividend yield | 0.00% | 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 | COHR | SOXX |
|---|---|---|
| 2022 | -48.6% | -35.1% |
| 2023 | +24.0% | +67.1% |
| 2024 | +117.6% | +12.9% |
| 2025 | +94.8% | +40.7% |
| 2026 | +60.0% | +74.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COHR and SOXX good diversifiers for each other?
Only partially. A correlation of 0.63 means COHR and SOXX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between COHR and SOXX?
The COHR/SOXX correlation stands at 0.63 on a 3-year window (1 year: 0.43, 5 years: 0.64), computed from weekly returns as of 2026-08-27.
Is SOXX a good diversifier for COHR?
Only partially. A correlation of 0.63 means COHR and SOXX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.63 mean?
On the −1 to +1 scale, 0.63 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/cohr-vs-soxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cohr-vs-soxx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: COHR correlations · SOXX correlations
