OSS vs ZTS: Correlation
One Stop Systems, Inc. (OSS) and Zoetis (ZTS) show a negative relationship: their 3-year correlation of weekly returns is -0.24.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OSS and ZTS?
Over the past 3 years, OSS and ZTS moved with a correlation of -0.24, which is negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.40) than the 3-year average (-0.24). Over 5 years the correlation is -0.12, and the annualized covariance of weekly returns is -584.5 %².
ZTS is close to the least connected end of OSS's tracked universe, ranking #14 of 16. Correlation aside, the last 12 months split them widely, with OSS ahead by 131.3 points (+80.5% versus -50.8%). Note the risk asymmetry: OSS runs 2.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
OSS vs ZTS: side by side
| OSS (One Stop Systems, Inc.) | ZTS (Zoetis) | |
|---|---|---|
| 1-year return | +80.5% | -50.8% |
| 5-year return | +103.2% | -61.5% |
| Volatility (ann.) | 82.4% | 30.1% |
| Beta vs S&P 500 | 1.82 | 0.51 |
| Max drawdown (3Y) | -56.0% | -63.0% |
| Market cap | $0.3B | $31.0B |
| P/E (trailing) | – | 12.7 |
| Dividend yield | 0.00% | 2.66% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | OSS | ZTS |
|---|---|---|
| 2022 | -39.2% | -39.5% |
| 2023 | -30.2% | +35.9% |
| 2024 | +59.5% | -16.6% |
| 2025 | +114.3% | -21.8% |
| 2026 | +57.7% | -39.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OSS and ZTS good diversifiers for each other?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between OSS and ZTS?
The OSS/ZTS correlation stands at -0.24 on a 3-year window (1 year: -0.40, 5 years: -0.12), computed from weekly returns as of 2026-08-27.
Is ZTS a good diversifier for OSS?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.24 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/oss-vs-zts.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/oss-vs-zts/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: OSS correlations · ZTS correlations
