LH vs RMD: Correlation
Labcorp (LH) and ResMed (RMD) show a moderate relationship: their 3-year correlation of weekly returns is 0.42.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LH and RMD?
Over the past 3 years, LH and RMD moved with a correlation of 0.42, which is moderate. The relationship has been stable: the 1-year correlation (0.42) sits close to the 3-year figure. Over 5 years the correlation is 0.43, and the annualized covariance of weekly returns is 281.9 %².
Among the 34 assets we track against LH, RMD ranks #16 by 3-year correlation. The last year tells two different stories: LH led by 37.3 percentage points, +21.8% for LH against -15.5% for RMD. On a rolling one-year basis the correlation drifted between 0.21 and 0.65, 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.
LH vs RMD: side by side
| LH (Labcorp) | RMD (ResMed) | |
|---|---|---|
| 1-year return | +21.8% | -15.5% |
| 5-year return | +36.0% | -14.6% |
| Volatility (ann.) | 21.4% | 31.2% |
| Beta vs S&P 500 | 0.33 | 0.79 |
| Max drawdown (3Y) | -17.4% | -37.3% |
| Market cap | $27.3B | $34.0B |
| P/E (trailing) | 27.8 | 22.6 |
| Dividend yield | 0.86% | 1.02% |
| Sector / category | Health Care | Health Care |
Year-by-year returns
| Year | LH | RMD |
|---|---|---|
| 2022 | -24.4% | -19.5% |
| 2023 | +13.8% | -16.5% |
| 2024 | +2.2% | +34.2% |
| 2025 | +10.6% | +6.3% |
| 2026 | +34.8% | -1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LH and RMD good diversifiers for each other?
Reasonably. At 0.42, LH and RMD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between LH and RMD?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.42 over the last year and 0.43 over 5 years.
Is RMD a good diversifier for LH?
Reasonably. At 0.42, LH and RMD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.42 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/lh-vs-rmd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/lh-vs-rmd/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: LH correlations · RMD correlations
