ACI vs WAB: Correlation
How closely do Albertsons Companies, Inc. (ACI) and Wabtec (WAB) trade together? Their weekly returns over three years give a correlation of -0.18, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACI and WAB?
Over the past 3 years, ACI and WAB moved with a correlation of -0.18, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.39) runs below the 3-year figure (-0.18). Over 5 years the correlation is 0.02, and the annualized covariance of weekly returns is -123.6 %².
By 3-year correlation, WAB places #11 of the 23 assets tracked against ACI. Correlation aside, the last 12 months split them widely, with WAB ahead by 87.6 points (-34.7% versus +52.9%).
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.
ACI vs WAB: side by side
| ACI (Albertsons Companies, Inc.) | WAB (Wabtec) | |
|---|---|---|
| 1-year return | -34.7% | +52.9% |
| 5-year return | -36.3% | +241.0% |
| Volatility (ann.) | 26.9% | 25.3% |
| Beta vs S&P 500 | 0.08 | 0.99 |
| Max drawdown (3Y) | -49.1% | -23.6% |
| Market cap | $5.9B | $50.2B |
| P/E (trailing) | 76.4 | 40.5 |
| Dividend yield | 5.00% | 0.37% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | ACI | WAB |
|---|---|---|
| 2022 | -6.8% | +9.1% |
| 2023 | +13.4% | +28.0% |
| 2024 | -12.5% | +50.1% |
| 2025 | -10.0% | +13.2% |
| 2026 | -26.3% | +39.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACI and WAB 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 ACI and WAB?
As of 2026-08-27, the correlation of weekly returns between ACI and WAB is -0.18 over 3 years, -0.39 over 1 year and 0.02 over 5 years.
Is WAB a good diversifier for ACI?
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?
On the −1 to +1 scale, -0.18 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/aci-vs-wab.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aci-vs-wab/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACI correlations · WAB correlations
