MRK vs PLTR: Correlation
Measured on weekly returns over the past three years, Merck & Co. (MRK) and Palantir Technologies (PLTR) carry a correlation of -0.19, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MRK and PLTR?
On 3 years of weekly data the MRK/PLTR correlation comes out at -0.19, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.26 over 1 year against -0.19 over 3. The 5-year figure is -0.18, and annualized covariance runs at -376.8 %².
PLTR is close to the least connected end of MRK's tracked universe, ranking #31 of 34. Correlation aside, the last 12 months split them widely, with MRK ahead by 65.2 points (+83.8% versus +18.6%). The rolling one-year correlation moved between -0.43 and -0.01 over the past three years, a moderate range. Risk is not evenly split, since PLTR carries 2.6 times the volatility of the other side.
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.
MRK vs PLTR: side by side
| MRK (Merck & Co.) | PLTR (Palantir Technologies) | |
|---|---|---|
| 1-year return | +83.8% | +18.6% |
| 5-year return | +128.5% | +621.8% |
| Volatility (ann.) | 27.9% | 71.3% |
| Beta vs S&P 500 | 0.28 | 2.47 |
| Max drawdown (3Y) | -43.4% | -48.2% |
| Market cap | $368.9B | $446.8B |
| P/E (trailing) | 121.6 | 151.2 |
| Dividend yield | 2.17% | 0.00% |
| Sector / category | Health Care | Information Technology |
Year-by-year returns
| Year | MRK | PLTR |
|---|---|---|
| 2022 | +49.4% | -64.7% |
| 2023 | +1.0% | +167.4% |
| 2024 | -6.3% | +340.5% |
| 2025 | +9.8% | +135.0% |
| 2026 | +44.1% | +4.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MRK and PLTR good diversifiers for each other?
By historical standards, yes. A correlation of -0.19 means the two rarely move for the same reasons.
FAQ
What is the correlation between MRK and PLTR?
Using weekly returns as of 2026-08-27: -0.19 over 3 years, with -0.26 over the last year and -0.18 over 5 years.
Is PLTR a good diversifier for MRK?
By historical standards, yes. A correlation of -0.19 means the two rarely move for the same reasons.
What does a correlation of -0.19 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.
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Related comparisons
Hubs: MRK correlations · PLTR correlations
