DGX vs WEC: Correlation
Quest Diagnostics (DGX) and WEC Energy Group (WEC) show a moderate relationship: their 3-year correlation of weekly returns is 0.40.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DGX and WEC?
On 3 years of weekly data the DGX/WEC correlation comes out at 0.40, moderate. The relationship has been stable: the 1-year correlation (0.49) sits close to the 3-year figure. The 5-year figure is 0.37, and annualized covariance runs at 128.9 %².
Within DGX's tracked universe of 32 assets, WEC comes in at #12 by 3-year correlation. Correlation aside, the last 12 months split them widely, with DGX ahead by 36.4 points (+38.5% versus +2.1%). On a rolling one-year basis the correlation drifted between 0.14 and 0.62, a moderate band.
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.
DGX vs WEC: side by side
| DGX (Quest Diagnostics) | WEC (WEC Energy Group) | |
|---|---|---|
| 1-year return | +38.5% | +2.1% |
| 5-year return | +78.8% | +32.7% |
| Volatility (ann.) | 19.1% | 16.9% |
| Beta vs S&P 500 | 0.09 | 0.02 |
| Max drawdown (3Y) | -12.4% | -11.6% |
| Market cap | $27.0B | $34.6B |
| P/E (trailing) | 26.0 | 20.6 |
| Dividend yield | 1.36% | 3.43% |
| Sector / category | Health Care | Utilities |
Year-by-year returns
| Year | DGX | WEC |
|---|---|---|
| 2022 | -7.8% | -0.5% |
| 2023 | -10.1% | -7.0% |
| 2024 | +11.8% | +16.1% |
| 2025 | +17.2% | +16.0% |
| 2026 | +42.8% | +3.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DGX and WEC good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between DGX and WEC?
Using weekly returns as of 2026-08-27: 0.40 over 3 years, with 0.49 over the last year and 0.37 over 5 years.
Is WEC a good diversifier for DGX?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined 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
$ curl https://www.pairbook.io/api/v1/pairs/dgx-vs-wec.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/dgx-vs-wec/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: DGX correlations · WEC correlations
