AZO vs DAIO: Correlation
Measured on weekly returns over the past three years, AutoZone (AZO) and Data I/O Corporation (DAIO) carry a correlation of -0.22, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AZO and DAIO?
Over the past 3 years, AZO and DAIO moved with a correlation of -0.22, which is negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.36) than the 3-year average (-0.22). Over 5 years the correlation is -0.02, and the annualized covariance of weekly returns is -221.3 %².
Within AZO's tracked universe of 30 assets, DAIO comes in at #25 by 3-year correlation. The last year tells two different stories: DAIO led by 29.6 percentage points, -30.3% for AZO against -0.7% for DAIO. Risk is not evenly split, since DAIO carries 1.9 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.
AZO vs DAIO: side by side
| AZO (AutoZone) | DAIO (Data I/O Corporation) | |
|---|---|---|
| 1-year return | -30.3% | -0.7% |
| 5-year return | +88.5% | -48.4% |
| Volatility (ann.) | 23.2% | 43.6% |
| Beta vs S&P 500 | 0.31 | 0.74 |
| Max drawdown (3Y) | -32.9% | -52.9% |
| Market cap | – | – |
| P/E (trailing) | 20.6 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Consumer Discretionary | US Listed |
Year-by-year returns
| Year | AZO | DAIO |
|---|---|---|
| 2022 | +17.6% | -13.9% |
| 2023 | +4.8% | -25.9% |
| 2024 | +23.8% | -5.8% |
| 2025 | +5.9% | +14.4% |
| 2026 | -13.5% | -6.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AZO and DAIO good diversifiers for each other?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
FAQ
What is the correlation between AZO and DAIO?
As of 2026-08-27, the correlation of weekly returns between AZO and DAIO is -0.22 over 3 years, -0.36 over 1 year and -0.02 over 5 years.
Is DAIO a good diversifier for AZO?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
What does a correlation of -0.22 mean?
On the −1 to +1 scale, -0.22 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/azo-vs-daio.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/azo-vs-daio/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AZO correlations · DAIO correlations
