IOSP vs RVT: Correlation
Innospec Inc. (IOSP) and Royce Small-Cap Trust, Inc. (RVT) show a strong relationship: their 3-year correlation of weekly returns is 0.71.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IOSP and RVT?
Across a 3-year window, the weekly returns of IOSP and RVT correlate at 0.71, strong. Little has changed lately, as the 1-year reading of 0.61 lands near the 3-year figure. Stretching to 5 years gives 0.62, with an annualized covariance of 359.6 %².
Among the 35 assets we track against IOSP, RVT ranks #4 by 3-year correlation. The last year tells two different stories: RVT led by 16.1 percentage points, +11.3% for IOSP against +27.4% for RVT.
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.
IOSP vs RVT: side by side
| IOSP (Innospec Inc.) | RVT (Royce Small-Cap Trust, Inc.) | |
|---|---|---|
| 1-year return | +11.3% | +27.4% |
| 5-year return | +10.2% | +53.9% |
| Volatility (ann.) | 26.6% | 19.1% |
| Beta vs S&P 500 | 0.94 | 0.99 |
| Max drawdown (3Y) | -48.4% | -23.5% |
| Market cap | $2.3B | $2.3B |
| P/E (trailing) | 19.5 | 6.5 |
| Dividend yield | 1.87% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IOSP | RVT |
|---|---|---|
| 2022 | +15.2% | -26.3% |
| 2023 | +21.5% | +18.8% |
| 2024 | -9.6% | +17.9% |
| 2025 | -28.9% | +11.5% |
| 2026 | +26.0% | +21.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IOSP and RVT good diversifiers for each other?
Somewhat, no more. With 0.71 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between IOSP and RVT?
Using weekly returns as of 2026-08-27: 0.71 over 3 years, with 0.61 over the last year and 0.62 over 5 years.
Is RVT a good diversifier for IOSP?
Somewhat, no more. With 0.71 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.71 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/iosp-vs-rvt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/iosp-vs-rvt/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IOSP correlations · RVT correlations
