AEE vs RNTX: Correlation
How closely do Ameren (AEE) and Rein Therapeutics, Inc. (RNTX) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AEE and RNTX?
Across a 3-year window, the weekly returns of AEE and RNTX correlate at -0.20, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.10 over 1 year against -0.20 over 3. Stretching to 5 years gives -0.11, with an annualized covariance of -347.1 %².
Among the 35 assets we track against AEE, RNTX ranks #28 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months AEE outperformed by 37.6 percentage points (+8.8% for AEE against -28.8% for RNTX). Note the risk asymmetry: RNTX runs 5.6 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.
AEE vs RNTX: side by side
| AEE (Ameren) | RNTX (Rein Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | +8.8% | -28.8% |
| 5-year return | +39.7% | -96.4% |
| Volatility (ann.) | 17.8% | 98.8% |
| Beta vs S&P 500 | 0.10 | 1.78 |
| Max drawdown (3Y) | -16.5% | -89.7% |
| Market cap | $29.6B | $0.1B |
| P/E (trailing) | 19.0 | – |
| Dividend yield | 2.71% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | AEE | RNTX |
|---|---|---|
| 2022 | +2.5% | -79.0% |
| 2023 | -16.1% | +28.6% |
| 2024 | +27.5% | -24.6% |
| 2025 | +15.3% | -49.6% |
| 2026 | +8.4% | -32.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AEE and RNTX 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 RNTX?
Using weekly returns as of 2026-08-27: -0.20 over 3 years, with -0.10 over the last year and -0.11 over 5 years.
Is RNTX 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?
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.
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Related comparisons
Hubs: AEE correlations · RNTX correlations
