AEE vs PSIG: Correlation
Ameren (AEE) and PS International Group Ltd. (PSIG) show a negative relationship: their 3-year correlation of weekly returns is -0.32.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AEE and PSIG?
Over the past 3 years, AEE and PSIG moved with a correlation of -0.32, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.32 lands near the 3-year figure. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is -858.5 %².
PSIG is close to the least connected end of AEE's tracked universe, ranking #35 of 35. Correlation aside, the last 12 months split them widely, with AEE ahead by 62.7 points (+8.8% versus -53.9%). One caveat on sizing: PSIG is 8.8 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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 PSIG: side by side
| AEE (Ameren) | PSIG (PS International Group Ltd.) | |
|---|---|---|
| 1-year return | +8.8% | -53.9% |
| 5-year return | +39.7% | n/a |
| Volatility (ann.) | 17.8% | 157.0% |
| Beta vs S&P 500 | 0.10 | 0.97 |
| Max drawdown (3Y) | -16.5% | -96.0% |
| Market cap | $29.6B | – |
| P/E (trailing) | 19.0 | – |
| Dividend yield | 2.71% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | AEE | PSIG |
|---|---|---|
| 2022 | +2.5% | – |
| 2023 | -16.1% | – |
| 2024 | +27.5% | – |
| 2025 | +15.3% | +8.3% |
| 2026 | +8.4% | -62.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AEE and PSIG good diversifiers for each other?
By historical standards, yes. A correlation of -0.32 means the two rarely move for the same reasons.
FAQ
What is the correlation between AEE and PSIG?
As of 2026-08-27, the correlation of weekly returns between AEE and PSIG is -0.32 over 3 years, -0.32 over 1 year and n/a over 5 years.
Is PSIG a good diversifier for AEE?
By historical standards, yes. A correlation of -0.32 means the two rarely move for the same reasons.
What does a correlation of -0.32 mean?
A reading of -0.32 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/aee-vs-psig.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/aee-vs-psig/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AEE correlations · PSIG correlations
