DIOD vs GNRC: Correlation
Diodes Incorporated (DIOD) and Generac (GNRC) show a moderate relationship: their 3-year correlation of weekly returns is 0.53.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DIOD and GNRC?
Across a 3-year window, the weekly returns of DIOD and GNRC correlate at 0.53, moderate. Recent behaviour matches the longer record: 0.62 over 1 year against 0.53 over 3. Stretching to 5 years gives 0.49, with an annualized covariance of 1230.2 %².
Within DIOD's tracked universe of 25 assets, GNRC comes in at #17 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months DIOD outperformed by 56.2 percentage points (+61.7% for DIOD against +5.5% for GNRC).
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 GNRC: side by side
| DIOD (Diodes Incorporated) | GNRC (Generac) | |
|---|---|---|
| 1-year return | +61.7% | +5.5% |
| 5-year return | -7.4% | -55.4% |
| Volatility (ann.) | 50.3% | 46.1% |
| Beta vs S&P 500 | 1.84 | 1.35 |
| Max drawdown (3Y) | -60.1% | -47.8% |
| Market cap | $4.2B | $11.6B |
| P/E (trailing) | 48.6 | 47.4 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | DIOD | GNRC |
|---|---|---|
| 2022 | -30.7% | -71.4% |
| 2023 | +5.8% | +28.4% |
| 2024 | -23.4% | +20.0% |
| 2025 | -20.0% | -12.0% |
| 2026 | +84.2% | +44.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DIOD and GNRC good diversifiers for each other?
Somewhat, no more. With 0.53 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between DIOD and GNRC?
As of 2026-08-27, the correlation of weekly returns between DIOD and GNRC is 0.53 over 3 years, 0.62 over 1 year and 0.49 over 5 years.
Is GNRC a good diversifier for DIOD?
Somewhat, no more. With 0.53 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 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/diod-vs-gnrc.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/diod-vs-gnrc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: DIOD correlations · GNRC correlations
