COST vs TJX: Correlation
Measured on weekly returns over the past three years, Costco (COST) and TJX Companies (TJX) carry a correlation of 0.38, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COST and TJX?
On 3 years of weekly data the COST/TJX correlation comes out at 0.38, moderate. The link has loosened recently: the 1-year correlation (0.22) runs below the 3-year figure (0.38). The 5-year figure is 0.46, and annualized covariance runs at 138.2 %².
Among the 33 assets we track against COST, TJX ranks #14 by 3-year correlation. Their 12-month results are close: -1.0% for COST against -1.0% for TJX. The rolling one-year correlation moved between 0.19 and 0.64 over the past three years, a moderate range.
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.
COST vs TJX: side by side
| COST (Costco) | TJX (TJX Companies) | |
|---|---|---|
| 1-year return | -1.0% | -1.0% |
| 5-year return | +116.3% | +98.2% |
| Volatility (ann.) | 19.8% | 18.3% |
| Beta vs S&P 500 | 0.45 | 0.45 |
| Max drawdown (3Y) | -20.7% | -20.1% |
| Market cap | $414.5B | $148.3B |
| P/E (trailing) | 48.1 | 24.9 |
| Dividend yield | 0.56% | 1.32% |
| Sector / category | Consumer Staples | Consumer Discretionary |
Year-by-year returns
| Year | COST | TJX |
|---|---|---|
| 2022 | -19.0% | +6.7% |
| 2023 | +49.0% | +19.7% |
| 2024 | +39.6% | +30.6% |
| 2025 | -5.4% | +28.7% |
| 2026 | +8.9% | -11.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COST and TJX good diversifiers for each other?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between COST and TJX?
As of 2026-08-27, the correlation of weekly returns between COST and TJX is 0.38 over 3 years, 0.22 over 1 year and 0.46 over 5 years.
Is TJX a good diversifier for COST?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.38 mean?
A reading of 0.38 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/cost-vs-tjx.json
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[](https://www.pairbook.io/pair/cost-vs-tjx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: COST correlations · TJX correlations
