LH vs ZCMD: Correlation
Labcorp (LH) and Zhongchao Inc. - Class A (ZCMD) show a negative relationship: their 3-year correlation of weekly returns is -0.24.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LH and ZCMD?
Across a 3-year window, the weekly returns of LH and ZCMD correlate at -0.24, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.25 over 1 year against -0.24 over 3. Stretching to 5 years gives -0.17, with an annualized covariance of -744.3 %².
ZCMD is close to the least connected end of LH's tracked universe, ranking #34 of 34. Correlation aside, the last 12 months split them widely, with LH ahead by 121.7 points (+21.8% versus -99.9%). One caveat on sizing: ZCMD is 6.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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 ZCMD: side by side
| LH (Labcorp) | ZCMD (Zhongchao Inc. - Class A) | |
|---|---|---|
| 1-year return | +21.8% | -99.9% |
| 5-year return | +36.0% | -100.0% |
| Volatility (ann.) | 21.4% | 141.8% |
| Beta vs S&P 500 | 0.33 | 0.59 |
| Max drawdown (3Y) | -17.4% | -100.0% |
| Market cap | $27.3B | – |
| P/E (trailing) | 27.8 | – |
| Dividend yield | 0.86% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | LH | ZCMD |
|---|---|---|
| 2022 | -24.4% | -35.4% |
| 2023 | +13.8% | -69.5% |
| 2024 | +2.2% | -53.8% |
| 2025 | +10.6% | -72.2% |
| 2026 | +34.8% | -99.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LH and ZCMD good diversifiers for each other?
By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.
FAQ
What is the correlation between LH and ZCMD?
As of 2026-08-27, the correlation of weekly returns between LH and ZCMD is -0.24 over 3 years, -0.25 over 1 year and -0.17 over 5 years.
Is ZCMD a good diversifier for LH?
By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.
What does a correlation of -0.24 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-zcmd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/lh-vs-zcmd/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: LH correlations · ZCMD correlations
