AES vs WIA: Correlation
How closely do AES Corporation (AES) and Western Asset Inflation-Linked Income Fund (WIA) trade together? Their weekly returns over three years give a correlation of 0.48, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AES and WIA?
Across a 3-year window, the weekly returns of AES and WIA correlate at 0.48, moderate. The relationship has been stable: the 1-year correlation (0.42) sits close to the 3-year figure. Stretching to 5 years gives 0.40, with an annualized covariance of 140.3 %².
By 3-year correlation, WIA places #14 of the 31 assets tracked against AES. The trailing year gives AES the advantage: +15.9% versus +2.1%, a 13.8-point spread. Risk is not evenly split, since AES carries 5.6 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.
AES vs WIA: side by side
| AES (AES Corporation) | WIA (Western Asset Inflation-Linked Income Fund) | |
|---|---|---|
| 1-year return | +15.9% | +2.1% |
| 5-year return | -25.1% | -3.9% |
| Volatility (ann.) | 40.5% | 7.2% |
| Beta vs S&P 500 | 0.86 | 0.20 |
| Max drawdown (3Y) | -53.3% | -6.4% |
| Market cap | $10.5B | $0.2B |
| P/E (trailing) | 5.5 | 14.0 |
| Dividend yield | 4.78% | 7.83% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | AES | WIA |
|---|---|---|
| 2022 | +21.7% | -25.8% |
| 2023 | -30.9% | +5.0% |
| 2024 | -30.4% | +6.1% |
| 2025 | +18.3% | +11.4% |
| 2026 | +6.6% | +1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AES and WIA good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between AES and WIA?
As of 2026-08-27, the correlation of weekly returns between AES and WIA is 0.48 over 3 years, 0.42 over 1 year and 0.40 over 5 years.
Is WIA a good diversifier for AES?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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/aes-vs-wia.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/aes-vs-wia/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AES correlations · WIA correlations
