BMEZ vs IRTC: Correlation
BlackRock Health Sciences Term Trust (BMEZ) and iRhythm Holdings, Inc. (IRTC) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BMEZ and IRTC?
On 3 years of weekly data the BMEZ/IRTC correlation comes out at 0.39, moderate. The past 12 months show a tighter link (0.56) than the 3-year average (0.39). The 5-year figure is 0.37, and annualized covariance runs at 319.3 %².
Among the 23 assets we track against BMEZ, IRTC ranks #17 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months BMEZ outperformed by 62.9 percentage points (+31.4% for BMEZ against -31.5% for IRTC). One caveat on sizing: IRTC is 3.0 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.
BMEZ vs IRTC: side by side
| BMEZ (BlackRock Health Sciences Term Trust) | IRTC (iRhythm Holdings, Inc.) | |
|---|---|---|
| 1-year return | +31.4% | -31.5% |
| 5-year return | +0.9% | +150.2% |
| Volatility (ann.) | 16.5% | 50.1% |
| Beta vs S&P 500 | 0.63 | 0.87 |
| Max drawdown (3Y) | -18.3% | -53.8% |
| Market cap | $1.1B | $3.8B |
| P/E (trailing) | 6.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BMEZ | IRTC |
|---|---|---|
| 2022 | -32.7% | -20.4% |
| 2023 | +5.1% | +14.3% |
| 2024 | +9.5% | -15.8% |
| 2025 | +18.7% | +96.8% |
| 2026 | +20.6% | -34.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BMEZ and IRTC good diversifiers for each other?
Reasonably. At 0.39, BMEZ and IRTC keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BMEZ and IRTC?
As of 2026-08-27, the correlation of weekly returns between BMEZ and IRTC is 0.39 over 3 years, 0.56 over 1 year and 0.37 over 5 years.
Is IRTC a good diversifier for BMEZ?
Reasonably. At 0.39, BMEZ and IRTC keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 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
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Related comparisons
Hubs: BMEZ correlations · IRTC correlations
