ALGM vs DIOD: Correlation
Allegro MicroSystems, Inc. (ALGM) and Diodes Incorporated (DIOD) show a strong relationship: their 3-year correlation of weekly returns is 0.67.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALGM and DIOD?
On 3 years of weekly data the ALGM/DIOD correlation comes out at 0.67, strong. The relationship has been stable: the 1-year correlation (0.72) sits close to the 3-year figure. The 5-year figure is 0.69, and annualized covariance runs at 1911.3 %².
Few assets follow ALGM as closely as DIOD, which ranks #3 of 11 tracked partners. The last year tells two different stories: DIOD led by 42.2 percentage points, +19.5% for ALGM against +61.7% for DIOD.
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.
ALGM vs DIOD: side by side
| ALGM (Allegro MicroSystems, Inc.) | DIOD (Diodes Incorporated) | |
|---|---|---|
| 1-year return | +19.5% | +61.7% |
| 5-year return | +23.1% | -7.4% |
| Volatility (ann.) | 56.9% | 50.3% |
| Beta vs S&P 500 | 1.83 | 1.84 |
| Max drawdown (3Y) | -57.2% | -60.1% |
| Market cap | $7.0B | $4.2B |
| P/E (trailing) | 537.0 | 48.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ALGM | DIOD |
|---|---|---|
| 2022 | -17.0% | -30.7% |
| 2023 | +0.8% | +5.8% |
| 2024 | -27.8% | -23.4% |
| 2025 | +20.7% | -20.0% |
| 2026 | +42.5% | +84.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALGM and DIOD good diversifiers for each other?
Somewhat, no more. With 0.67 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ALGM and DIOD?
Using weekly returns as of 2026-08-27: 0.67 over 3 years, with 0.72 over the last year and 0.69 over 5 years.
Is DIOD a good diversifier for ALGM?
Somewhat, no more. With 0.67 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.67 mean?
On the −1 to +1 scale, 0.67 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/algm-vs-diod.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/algm-vs-diod/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ALGM correlations · DIOD correlations
