RMTI vs RYTM: Correlation
How closely do Rockwell Medical, Inc. (RMTI) and Rhythm Pharmaceuticals, Inc. (RYTM) trade together? Their weekly returns over three years give a correlation of 0.40, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RMTI and RYTM?
Over the past 3 years, RMTI and RYTM moved with a correlation of 0.40, which is moderate. The past 12 months show a weaker link (0.16) than the 3-year average (0.40). Over 5 years the correlation is 0.25, and the annualized covariance of weekly returns is 1869.0 %².
RYTM is one of the assets that tracks RMTI most closely: it ranks #3 out of the 11 assets we track against RMTI. The last year tells two different stories: RYTM led by 57.3 percentage points, -47.3% for RMTI against +10.0% for RYTM.
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.
RMTI vs RYTM: side by side
| RMTI (Rockwell Medical, Inc.) | RYTM (Rhythm Pharmaceuticals, Inc.) | |
|---|---|---|
| 1-year return | -47.3% | +10.0% |
| 5-year return | -89.3% | +785.4% |
| Volatility (ann.) | 79.9% | 58.4% |
| Beta vs S&P 500 | 1.63 | 1.92 |
| Max drawdown (3Y) | -88.8% | -35.5% |
| Market cap | – | $7.7B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RMTI | RYTM |
|---|---|---|
| 2022 | -77.6% | +191.8% |
| 2023 | +87.1% | +57.9% |
| 2024 | +7.9% | +21.8% |
| 2025 | -59.3% | +91.2% |
| 2026 | -6.6% | +5.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RMTI and RYTM good diversifiers for each other?
Reasonably. At 0.40, RMTI and RYTM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between RMTI and RYTM?
As of 2026-08-27, the correlation of weekly returns between RMTI and RYTM is 0.40 over 3 years, 0.16 over 1 year and 0.25 over 5 years.
Is RYTM a good diversifier for RMTI?
Reasonably. At 0.40, RMTI and RYTM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.40 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: RMTI correlations · RYTM correlations
