RSG vs WDC: Correlation
Republic Services (RSG) and Western Digital (WDC) show a negative relationship: their 3-year correlation of weekly returns is -0.26.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RSG and WDC?
Over the past 3 years, RSG and WDC moved with a correlation of -0.26, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.58 versus -0.26 over 3 years. Over 5 years the correlation is -0.10, and the annualized covariance of weekly returns is -249.0 %².
Out of 38 assets tracked against RSG, WDC lands near the bottom at #37. The last year tells two different stories: WDC led by 479.9 percentage points, -5.6% for RSG against +474.3% for WDC. Do not treat this figure as fixed: across three years the rolling one-year correlation ranged all the way from -0.59 to 0.19. Note the risk asymmetry: WDC runs 3.6 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
RSG vs WDC: side by side
| RSG (Republic Services) | WDC (Western Digital) | |
|---|---|---|
| 1-year return | -5.6% | +474.3% |
| 5-year return | +87.9% | +889.2% |
| Volatility (ann.) | 16.2% | 58.0% |
| Beta vs S&P 500 | 0.17 | 2.15 |
| Max drawdown (3Y) | -22.5% | -49.6% |
| Market cap | $67.1B | $166.6B |
| P/E (trailing) | 31.0 | 17.4 |
| Dividend yield | 1.13% | 0.11% |
| Sector / category | Industrials | Information Technology |
Year-by-year returns
| Year | RSG | WDC |
|---|---|---|
| 2022 | -6.2% | -51.6% |
| 2023 | +29.6% | +66.0% |
| 2024 | +23.0% | +13.9% |
| 2025 | +6.4% | +283.7% |
| 2026 | +4.4% | +168.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RSG and WDC good diversifiers for each other?
Yes: at -0.26, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between RSG and WDC?
Using weekly returns as of 2026-08-27: -0.26 over 3 years, with -0.58 over the last year and -0.10 over 5 years.
Is WDC a good diversifier for RSG?
Yes: at -0.26, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.26 mean?
On the −1 to +1 scale, -0.26 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/rsg-vs-wdc.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/rsg-vs-wdc/)
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Related comparisons
Hubs: RSG correlations · WDC correlations
