IR vs REPL: Correlation
Measured on weekly returns over the past three years, Ingersoll Rand (IR) and Replimune Group, Inc. (REPL) carry a correlation of -0.18, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IR and REPL?
On 3 years of weekly data the IR/REPL correlation comes out at -0.18, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.10 over 1 year against -0.18 over 3. The 5-year figure is -0.10, and annualized covariance runs at -841.1 %².
Among the 61 assets we track against IR, REPL ranks #55 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months REPL outperformed by 184.1 percentage points (-2.0% for IR against +182.1% for REPL). Risk is not evenly split, since REPL carries 5.2 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.
IR vs REPL: side by side
| IR (Ingersoll Rand) | REPL (Replimune Group, Inc.) | |
|---|---|---|
| 1-year return | -2.0% | +182.1% |
| 5-year return | +49.2% | -50.4% |
| Volatility (ann.) | 29.8% | 153.7% |
| Beta vs S&P 500 | 1.17 | 0.48 |
| Max drawdown (3Y) | -36.6% | -92.0% |
| Market cap | $30.6B | $1.5B |
| P/E (trailing) | 32.6 | – |
| Dividend yield | 0.15% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | IR | REPL |
|---|---|---|
| 2022 | -15.4% | +0.4% |
| 2023 | +48.2% | -69.0% |
| 2024 | +17.1% | +43.7% |
| 2025 | -12.3% | -19.7% |
| 2026 | -0.2% | +60.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IR and REPL good diversifiers for each other?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between IR and REPL?
As of 2026-08-27, the correlation of weekly returns between IR and REPL is -0.18 over 3 years, -0.10 over 1 year and -0.10 over 5 years.
Is REPL a good diversifier for IR?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.18 mean?
A reading of -0.18 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/ir-vs-repl.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ir-vs-repl/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IR correlations · REPL correlations
