MA vs RMD: Correlation
How closely do Mastercard (MA) and ResMed (RMD) trade together? Their weekly returns over three years give a correlation of 0.45, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MA and RMD?
On 3 years of weekly data the MA/RMD correlation comes out at 0.45, moderate. The past 12 months show a tighter link (0.56) than the 3-year average (0.45). The 5-year figure is 0.37, and annualized covariance runs at 270.4 %².
Within MA's tracked universe of 46 assets, RMD comes in at #30 by 3-year correlation. Correlation aside, the last 12 months split them widely, with MA ahead by 16.3 points (+0.8% versus -15.5%). The rolling one-year correlation moved between 0.30 and 0.57 over the past three years, a moderate range. One caveat on sizing: RMD is 1.6 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.
MA vs RMD: side by side
| MA (Mastercard) | RMD (ResMed) | |
|---|---|---|
| 1-year return | +0.8% | -15.5% |
| 5-year return | +72.6% | -14.6% |
| Volatility (ann.) | 19.3% | 31.2% |
| Beta vs S&P 500 | 0.77 | 0.79 |
| Max drawdown (3Y) | -20.9% | -37.3% |
| Market cap | $518.4B | $34.0B |
| P/E (trailing) | 32.9 | 22.6 |
| Dividend yield | 0.56% | 1.02% |
| Sector / category | Financials | Health Care |
Year-by-year returns
| Year | MA | RMD |
|---|---|---|
| 2022 | -2.7% | -19.5% |
| 2023 | +23.4% | -16.5% |
| 2024 | +24.2% | +34.2% |
| 2025 | +9.0% | +6.3% |
| 2026 | +4.2% | -1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MA and RMD good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.45 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between MA and RMD?
The MA/RMD correlation stands at 0.45 on a 3-year window (1 year: 0.56, 5 years: 0.37), computed from weekly returns as of 2026-08-27.
Is RMD a good diversifier for MA?
Yes, to a useful degree: a correlation of 0.45 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.45 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/ma-vs-rmd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ma-vs-rmd/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MA correlations · RMD correlations
