OSIS vs RVT: Correlation
OSI Systems, Inc. (OSIS) and Royce Small-Cap Trust, Inc. (RVT) show a strong relationship: their 3-year correlation of weekly returns is 0.60.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OSIS and RVT?
On 3 years of weekly data the OSIS/RVT correlation comes out at 0.60, strong. Recent behaviour matches the longer record: 0.52 over 1 year against 0.60 over 3. The 5-year figure is 0.56, and annualized covariance runs at 439.0 %².
Within OSIS's tracked universe of 12 assets, RVT comes in at #4 by 3-year correlation. Correlation aside, the last 12 months split them widely, with RVT ahead by 35.9 points (-8.5% versus +27.4%). Note the risk asymmetry: OSIS runs 2.0 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.
OSIS vs RVT: side by side
| OSIS (OSI Systems, Inc.) | RVT (Royce Small-Cap Trust, Inc.) | |
|---|---|---|
| 1-year return | -8.5% | +27.4% |
| 5-year return | +113.6% | +53.9% |
| Volatility (ann.) | 38.1% | 19.1% |
| Beta vs S&P 500 | 1.39 | 0.99 |
| Max drawdown (3Y) | -36.2% | -23.5% |
| Market cap | $3.4B | $2.3B |
| P/E (trailing) | 23.6 | 6.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OSIS | RVT |
|---|---|---|
| 2022 | -14.7% | -26.3% |
| 2023 | +62.3% | +18.8% |
| 2024 | +29.7% | +17.9% |
| 2025 | +52.3% | +11.5% |
| 2026 | -17.3% | +21.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OSIS and RVT good diversifiers for each other?
Somewhat, no more. With 0.60 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between OSIS and RVT?
The OSIS/RVT correlation stands at 0.60 on a 3-year window (1 year: 0.52, 5 years: 0.56), computed from weekly returns as of 2026-08-27.
Is RVT a good diversifier for OSIS?
Somewhat, no more. With 0.60 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.60 mean?
A reading of 0.60 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/osis-vs-rvt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/osis-vs-rvt/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: OSIS correlations · RVT correlations
