CPSH vs DAIO: Correlation
CPS Technologies Corp. (CPSH) and Data I/O Corporation (DAIO) show a moderate relationship: their 3-year correlation of weekly returns is 0.40.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CPSH and DAIO?
Over the past 3 years, CPSH and DAIO moved with a correlation of 0.40, which is moderate. The relationship has been stable: the 1-year correlation (0.49) sits close to the 3-year figure. Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 1374.6 %².
In CPSH's tracked universe of 18 assets, DAIO sits right near the top at #1. Correlation aside, the last 12 months split them widely, with CPSH ahead by 16.0 points (+15.3% versus -0.7%). Risk is not evenly split, since CPSH 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.
CPSH vs DAIO: side by side
| CPSH (CPS Technologies Corp.) | DAIO (Data I/O Corporation) | |
|---|---|---|
| 1-year return | +15.3% | -0.7% |
| 5-year return | -32.8% | -48.4% |
| Volatility (ann.) | 78.3% | 43.6% |
| Beta vs S&P 500 | 0.50 | 0.74 |
| Max drawdown (3Y) | -69.7% | -52.9% |
| Market cap | $0.1B | – |
| P/E (trailing) | 392.0 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CPSH | DAIO |
|---|---|---|
| 2022 | -29.0% | -13.9% |
| 2023 | -12.6% | -25.9% |
| 2024 | -31.5% | -5.8% |
| 2025 | +91.9% | +14.4% |
| 2026 | +26.9% | -6.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CPSH and DAIO good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CPSH and DAIO?
As of 2026-08-27, the correlation of weekly returns between CPSH and DAIO is 0.40 over 3 years, 0.49 over 1 year and 0.29 over 5 years.
Is DAIO a good diversifier for CPSH?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.40 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/cpsh-vs-daio.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cpsh-vs-daio/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CPSH correlations · DAIO correlations
