MCK vs MDU: Correlation
How closely do McKesson Corporation (MCK) and MDU Resources Group, Inc. (MDU) trade together? Their weekly returns over three years give a correlation of 0.41, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MCK and MDU?
Over the past 3 years, MCK and MDU moved with a correlation of 0.41, which is moderate. Little has changed lately, as the 1-year reading of 0.31 lands near the 3-year figure. Over 5 years the correlation is 0.34, and the annualized covariance of weekly returns is 256.6 %².
Among the 35 assets we track against MCK, MDU ranks #6 by 3-year correlation. Twelve-month performance is nearly a tie, at +30.8% for MCK and +26.3% for MDU.
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.
MCK vs MDU: side by side
| MCK (McKesson Corporation) | MDU (MDU Resources Group, Inc.) | |
|---|---|---|
| 1-year return | +30.8% | +26.3% |
| 5-year return | +354.8% | +90.7% |
| Volatility (ann.) | 25.1% | 25.2% |
| Beta vs S&P 500 | 0.16 | 0.55 |
| Max drawdown (3Y) | -27.2% | -21.5% |
| Market cap | $103.8B | $4.2B |
| P/E (trailing) | 24.0 | 21.7 |
| Dividend yield | 0.37% | 2.76% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | MCK | MDU |
|---|---|---|
| 2022 | +51.8% | +1.5% |
| 2023 | +24.1% | -1.9% |
| 2024 | +23.7% | +68.0% |
| 2025 | +44.5% | +11.8% |
| 2026 | +8.8% | +4.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MCK and MDU good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.41 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between MCK and MDU?
Using weekly returns as of 2026-08-27: 0.41 over 3 years, with 0.31 over the last year and 0.34 over 5 years.
Is MDU a good diversifier for MCK?
Yes, to a useful degree: a correlation of 0.41 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.41 mean?
A reading of 0.41 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: MCK correlations · MDU correlations
