IBB vs RVTY: Correlation
How closely do iShares Biotechnology ETF (IBB) and Revvity (RVTY) trade together? Their weekly returns over three years give a correlation of 0.60, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IBB and RVTY?
Across a 3-year window, the weekly returns of IBB and RVTY correlate at 0.60, strong. The relationship has been stable: the 1-year correlation (0.63) sits close to the 3-year figure. Stretching to 5 years gives 0.62, with an annualized covariance of 422.9 %².
Among the 168 assets we track against IBB, RVTY ranks #34 by 3-year correlation. The trailing year gives IBB the advantage: +55.4% versus +46.8%, a 8.6-point spread. The rolling one-year correlation moved between 0.42 and 0.69 over the past three years, a moderate range. Note the risk asymmetry: RVTY runs 1.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
IBB vs RVTY: side by side
| IBB (iShares Biotechnology ETF) | RVTY (Revvity) | |
|---|---|---|
| 1-year return | +55.4% | +46.8% |
| 5-year return | +26.6% | -30.2% |
| Volatility (ann.) | 20.7% | 34.2% |
| Beta vs S&P 500 | 0.81 | 0.81 |
| Max drawdown (3Y) | -24.9% | -35.3% |
| Market cap | – | $14.5B |
| P/E (trailing) | – | 62.4 |
| Dividend yield | 0.22% | 0.22% |
| Expense ratio | 0.44% | – |
| Assets under management | $9.2B | – |
| Sector / category | ETF · Thematic | Health Care |
IBB, iShares's Health fund, carries $9.2B under management, 235 holdings, a 0.44% expense ratio, a 0.22% trailing dividend yield.
Year-by-year returns
| Year | IBB | RVTY |
|---|---|---|
| 2022 | -13.7% | -30.1% |
| 2023 | +3.8% | -21.9% |
| 2024 | -2.4% | +2.4% |
| 2025 | +28.0% | -13.1% |
| 2026 | +27.4% | +34.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IBB and RVTY good diversifiers for each other?
Only partially. A correlation of 0.60 means IBB and RVTY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between IBB and RVTY?
Using weekly returns as of 2026-08-27: 0.60 over 3 years, with 0.63 over the last year and 0.62 over 5 years.
Is RVTY a good diversifier for IBB?
Only partially. A correlation of 0.60 means IBB and RVTY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.60 mean?
A reading of 0.60 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/ibb-vs-rvty.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ibb-vs-rvty/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: IBB correlations · RVTY correlations
