LFMD vs MRK: Correlation
How closely do LifeMD, Inc. (LFMD) and Merck & Co. (MRK) trade together? Their weekly returns over three years give a correlation of -0.18, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LFMD and MRK?
Over the past 3 years, LFMD and MRK moved with a correlation of -0.18, which is negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.17 over 1 year against -0.18 over 3. Over 5 years the correlation is -0.16, and the annualized covariance of weekly returns is -427.7 %².
Within LFMD's tracked universe of 15 assets, MRK comes in at #10 by 3-year correlation. Correlation aside, the last 12 months split them widely, with MRK ahead by 132.9 points (-49.1% versus +83.8%). Note the risk asymmetry: LFMD runs 3.0 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.
LFMD vs MRK: side by side
| LFMD (LifeMD, Inc.) | MRK (Merck & Co.) | |
|---|---|---|
| 1-year return | -49.1% | +83.8% |
| 5-year return | -58.8% | +128.5% |
| Volatility (ann.) | 84.5% | 27.9% |
| Beta vs S&P 500 | 1.35 | 0.28 |
| Max drawdown (3Y) | -82.5% | -43.4% |
| Market cap | $0.2B | $368.9B |
| P/E (trailing) | – | 121.6 |
| Dividend yield | 0.00% | 2.17% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | LFMD | MRK |
|---|---|---|
| 2022 | -49.9% | +49.4% |
| 2023 | +327.3% | +1.0% |
| 2024 | -40.3% | -6.3% |
| 2025 | -31.1% | +9.8% |
| 2026 | -4.4% | +44.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LFMD and MRK good diversifiers for each other?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
FAQ
What is the correlation between LFMD and MRK?
The LFMD/MRK correlation stands at -0.18 on a 3-year window (1 year: -0.17, 5 years: -0.16), computed from weekly returns as of 2026-08-27.
Is MRK a good diversifier for LFMD?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
What does a correlation of -0.18 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/lfmd-vs-mrk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/lfmd-vs-mrk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: LFMD correlations · MRK correlations
