AEE vs RPD: Correlation
Ameren (AEE) and Rapid7, Inc. (RPD) show a negative relationship: their 3-year correlation of weekly returns is -0.20.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AEE and RPD?
Over the past 3 years, AEE and RPD moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.28) sits close to the 3-year figure. Over 5 years the correlation is -0.01, and the annualized covariance of weekly returns is -196.8 %².
Within AEE's tracked universe of 35 assets, RPD comes in at #29 by 3-year correlation. The last year tells two different stories: AEE led by 43.5 percentage points, +8.8% for AEE against -34.7% for RPD. Risk is not evenly split, since RPD carries 3.2 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.
AEE vs RPD: side by side
| AEE (Ameren) | RPD (Rapid7, Inc.) | |
|---|---|---|
| 1-year return | +8.8% | -34.7% |
| 5-year return | +39.7% | -88.9% |
| Volatility (ann.) | 17.8% | 56.3% |
| Beta vs S&P 500 | 0.10 | 1.42 |
| Max drawdown (3Y) | -16.5% | -91.8% |
| Market cap | $29.6B | $0.9B |
| P/E (trailing) | 19.0 | 37.5 |
| Dividend yield | 2.71% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | AEE | RPD |
|---|---|---|
| 2022 | +2.5% | -71.1% |
| 2023 | -16.1% | +68.0% |
| 2024 | +27.5% | -29.5% |
| 2025 | +15.3% | -62.2% |
| 2026 | +8.4% | -11.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AEE and RPD good diversifiers for each other?
By historical standards, yes. A correlation of -0.20 means the two rarely move for the same reasons.
FAQ
What is the correlation between AEE and RPD?
Using weekly returns as of 2026-08-27: -0.20 over 3 years, with -0.28 over the last year and -0.01 over 5 years.
Is RPD a good diversifier for AEE?
By historical standards, yes. A correlation of -0.20 means the two rarely move for the same reasons.
What does a correlation of -0.20 mean?
On the −1 to +1 scale, -0.20 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/aee-vs-rpd.json
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Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: AEE correlations · RPD correlations
