GAM vs RMD: Correlation
General American Investors, Inc. (GAM) and ResMed (RMD) show a moderate relationship: their 3-year correlation of weekly returns is 0.43.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GAM and RMD?
On 3 years of weekly data the GAM/RMD correlation comes out at 0.43, moderate. The link has loosened recently: the 1-year correlation (0.28) runs below the 3-year figure (0.43). The 5-year figure is 0.52, and annualized covariance runs at 182.9 %².
Out of 14 assets tracked against GAM, RMD lands near the bottom at #11. Correlation aside, the last 12 months split them widely, with GAM ahead by 41.6 points (+26.1% versus -15.5%). Risk is not evenly split, since RMD carries 2.3 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.
GAM vs RMD: side by side
| GAM (General American Investors, Inc.) | RMD (ResMed) | |
|---|---|---|
| 1-year return | +26.1% | -15.5% |
| 5-year return | +118.0% | -14.6% |
| Volatility (ann.) | 13.6% | 31.2% |
| Beta vs S&P 500 | 0.81 | 0.79 |
| Max drawdown (3Y) | -14.9% | -37.3% |
| Market cap | $1.6B | $34.0B |
| P/E (trailing) | 4.2 | 22.6 |
| Dividend yield | 9.47% | 1.02% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | GAM | RMD |
|---|---|---|
| 2022 | -14.8% | -19.5% |
| 2023 | +26.8% | -16.5% |
| 2024 | +29.5% | +34.2% |
| 2025 | +28.6% | +6.3% |
| 2026 | +15.1% | -1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GAM and RMD good diversifiers for each other?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between GAM and RMD?
The GAM/RMD correlation stands at 0.43 on a 3-year window (1 year: 0.28, 5 years: 0.52), computed from weekly returns as of 2026-08-27.
Is RMD a good diversifier for GAM?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.43 mean?
A reading of 0.43 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/gam-vs-rmd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gam-vs-rmd/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: GAM correlations · RMD correlations
