DIOD vs SOXX: Correlation
How closely do Diodes Incorporated (DIOD) and iShares Semiconductor ETF (SOXX) trade together? Their weekly returns over three years give a correlation of 0.69, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DIOD and SOXX?
Across a 3-year window, the weekly returns of DIOD and SOXX correlate at 0.69, strong. The relationship has been stable: the 1-year correlation (0.71) sits close to the 3-year figure. Stretching to 5 years gives 0.74, with an annualized covariance of 1229.8 %².
In DIOD's tracked universe of 25 assets, SOXX sits right near the top at #3. Their recent paths diverged sharply: over the last 12 months SOXX outperformed by 48.3 percentage points (+61.7% for DIOD 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.
DIOD vs SOXX: side by side
| DIOD (Diodes Incorporated) | SOXX (iShares Semiconductor ETF) | |
|---|---|---|
| 1-year return | +61.7% | +110.0% |
| 5-year return | -7.4% | +247.5% |
| Volatility (ann.) | 50.3% | 35.2% |
| Beta vs S&P 500 | 1.84 | 1.93 |
| Max drawdown (3Y) | -60.1% | -41.4% |
| Market cap | $4.2B | – |
| P/E (trailing) | 48.6 | – |
| Dividend yield | 0.00% | 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 | DIOD | SOXX |
|---|---|---|
| 2022 | -30.7% | -35.1% |
| 2023 | +5.8% | +67.1% |
| 2024 | -23.4% | +12.9% |
| 2025 | -20.0% | +40.7% |
| 2026 | +84.2% | +74.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DIOD and SOXX good diversifiers for each other?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between DIOD and SOXX?
As of 2026-08-27, the correlation of weekly returns between DIOD and SOXX is 0.69 over 3 years, 0.71 over 1 year and 0.74 over 5 years.
Is SOXX a good diversifier for DIOD?
Somewhat, no more. With 0.69 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.69 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/diod-vs-soxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/diod-vs-soxx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: DIOD correlations · SOXX correlations
