COST vs RSG: Correlation
Measured on weekly returns over the past three years, Costco (COST) and Republic Services (RSG) carry a correlation of 0.40, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COST and RSG?
Across a 3-year window, the weekly returns of COST and RSG correlate at 0.40, moderate. Little has changed lately, as the 1-year reading of 0.35 lands near the 3-year figure. Stretching to 5 years gives 0.43, with an annualized covariance of 129.7 %².
Among the 33 assets we track against COST, RSG ranks #9 by 3-year correlation. Their 12-month results are close: -1.0% for COST against -5.6% for RSG. Across three years, the rolling one-year figure varied moderately, from 0.15 to 0.64.
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 RSG: side by side
| COST (Costco) | RSG (Republic Services) | |
|---|---|---|
| 1-year return | -1.0% | -5.6% |
| 5-year return | +116.3% | +87.9% |
| Volatility (ann.) | 19.8% | 16.2% |
| Beta vs S&P 500 | 0.45 | 0.17 |
| Max drawdown (3Y) | -20.7% | -22.5% |
| Market cap | $414.5B | $67.1B |
| P/E (trailing) | 48.1 | 31.0 |
| Dividend yield | 0.56% | 1.13% |
| Sector / category | Consumer Staples | Industrials |
Year-by-year returns
| Year | COST | RSG |
|---|---|---|
| 2022 | -19.0% | -6.2% |
| 2023 | +49.0% | +29.6% |
| 2024 | +39.6% | +23.0% |
| 2025 | -5.4% | +6.4% |
| 2026 | +8.9% | +4.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COST and RSG good diversifiers for each other?
Reasonably. At 0.40, COST and RSG keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between COST and RSG?
Using weekly returns as of 2026-08-27: 0.40 over 3 years, with 0.35 over the last year and 0.43 over 5 years.
Is RSG a good diversifier for COST?
Reasonably. At 0.40, COST and RSG keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.40 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
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Related comparisons
Hubs: COST correlations · RSG correlations
