A vs IBB: Correlation
Agilent Technologies (A) and iShares Biotechnology ETF (IBB) show a strong relationship: their 3-year correlation of weekly returns is 0.61.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are A and IBB?
Over the past 3 years, A and IBB moved with a correlation of 0.61, which is strong. Recent behaviour matches the longer record: 0.59 over 1 year against 0.61 over 3. Over 5 years the correlation is 0.63, and the annualized covariance of weekly returns is 390.8 %².
By 3-year correlation, IBB places #9 of the 33 assets tracked against A. Correlation aside, the last 12 months split them widely, with IBB ahead by 21.5 points (+33.9% versus +55.4%). On a rolling one-year basis the correlation drifted between 0.46 and 0.74, a moderate band.
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.
A vs IBB: side by side
| A (Agilent Technologies) | IBB (iShares Biotechnology ETF) | |
|---|---|---|
| 1-year return | +33.9% | +55.4% |
| 5-year return | -7.5% | +26.6% |
| Volatility (ann.) | 31.0% | 20.7% |
| Beta vs S&P 500 | 0.98 | 0.81 |
| Max drawdown (3Y) | -35.3% | -24.9% |
| Market cap | $44.5B | – |
| P/E (trailing) | 30.6 | – |
| Dividend yield | 0.00% | 0.22% |
| Expense ratio | – | 0.44% |
| Assets under management | – | $9.2B |
| Sector / category | Health Care | ETF · Thematic |
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 | A | IBB |
|---|---|---|
| 2022 | -5.5% | -13.7% |
| 2023 | -6.4% | +3.8% |
| 2024 | -2.7% | -2.4% |
| 2025 | +1.9% | +28.0% |
| 2026 | +16.6% | +27.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are A and IBB good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between A and IBB?
The A/IBB correlation stands at 0.61 on a 3-year window (1 year: 0.59, 5 years: 0.63), computed from weekly returns as of 2026-08-27.
Is IBB a good diversifier for A?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 mean?
A reading of 0.61 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/a-vs-ibb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/a-vs-ibb/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: A correlations · IBB correlations
