BJ vs TAC: Correlation
BJ's Wholesale Club Holdings, Inc. (BJ) and TransAlta Corporation (TAC) show a negative relationship: their 3-year correlation of weekly returns is -0.24.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BJ and TAC?
Over the past 3 years, BJ and TAC moved with a correlation of -0.24, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.30) sits close to the 3-year figure. Over 5 years the correlation is -0.08, and the annualized covariance of weekly returns is -230.8 %².
Among the 43 assets we track against BJ, TAC ranks #32 by 3-year correlation. On 12-month performance TAC holds a 11.2-point edge, -6.9% against +4.3%.
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.
BJ vs TAC: side by side
| BJ (BJ's Wholesale Club Holdings, Inc.) | TAC (TransAlta Corporation) | |
|---|---|---|
| 1-year return | -6.9% | +4.3% |
| 5-year return | +59.5% | +36.9% |
| Volatility (ann.) | 26.4% | 36.2% |
| Beta vs S&P 500 | -0.14 | 0.84 |
| Max drawdown (3Y) | -30.1% | -43.3% |
| Market cap | $11.4B | $4.0B |
| P/E (trailing) | 20.4 | – |
| Dividend yield | 0.00% | 2.10% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BJ | TAC |
|---|---|---|
| 2022 | -1.2% | -18.0% |
| 2023 | +0.8% | -5.6% |
| 2024 | +34.0% | +74.0% |
| 2025 | +0.8% | -9.5% |
| 2026 | +0.5% | -0.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BJ and TAC good diversifiers for each other?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BJ and TAC?
As of 2026-08-27, the correlation of weekly returns between BJ and TAC is -0.24 over 3 years, -0.30 over 1 year and -0.08 over 5 years.
Is TAC a good diversifier for BJ?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.24 mean?
A reading of -0.24 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/bj-vs-tac.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bj-vs-tac/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BJ correlations · TAC correlations
