IBB vs TECH: Correlation
Measured on weekly returns over the past three years, iShares Biotechnology ETF (IBB) and Bio-Techne (TECH) carry a correlation of 0.62, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IBB and TECH?
Over the past 3 years, IBB and TECH moved with a correlation of 0.62, which is strong. Little has changed lately, as the 1-year reading of 0.59 lands near the 3-year figure. Over 5 years the correlation is 0.65, and the annualized covariance of weekly returns is 540.9 %².
Within IBB's tracked universe of 168 assets, TECH comes in at #24 by 3-year correlation. Correlation aside, the last 12 months split them widely, with IBB ahead by 25.8 points (+55.4% versus +29.6%). Stability stands out here, with the rolling one-year correlation confined to 0.58 through 0.71. Note the risk asymmetry: TECH runs 2.0 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 TECH: side by side
| IBB (iShares Biotechnology ETF) | TECH (Bio-Techne) | |
|---|---|---|
| 1-year return | +55.4% | +29.6% |
| 5-year return | +26.6% | -41.4% |
| Volatility (ann.) | 20.7% | 41.9% |
| Beta vs S&P 500 | 0.81 | 0.90 |
| Max drawdown (3Y) | -24.9% | -48.1% |
| Market cap | – | $11.4B |
| P/E (trailing) | – | 62.5 |
| Dividend yield | 0.22% | 0.44% |
| Expense ratio | 0.44% | – |
| Assets under management | $9.2B | – |
| Sector / category | ETF · Thematic | Health Care |
IBB is a Health fund from iShares: $9.2B under management, 235 holdings, a 0.44% expense ratio, a 0.22% trailing dividend yield.
Year-by-year returns
| Year | IBB | TECH |
|---|---|---|
| 2022 | -13.7% | -35.7% |
| 2023 | +3.8% | -6.5% |
| 2024 | -2.4% | -6.2% |
| 2025 | +28.0% | -17.9% |
| 2026 | +27.4% | +23.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
TECH represents 0.78% of IBB's portfolio, so part of any move in IBB is TECH itself, and the correlation between them is partly mechanical.
Are IBB and TECH good diversifiers for each other?
Only partially. A correlation of 0.62 means IBB and TECH 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 TECH?
As of 2026-08-27, the correlation of weekly returns between IBB and TECH is 0.62 over 3 years, 0.59 over 1 year and 0.65 over 5 years.
Is TECH a good diversifier for IBB?
Only partially. A correlation of 0.62 means IBB and TECH share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.62 mean?
On the −1 to +1 scale, 0.62 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ibb-vs-tech.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ibb-vs-tech/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: IBB correlations · TECH correlations
