IBB vs IMNM: Correlation
How closely do iShares Biotechnology ETF (IBB) and Immunome, Inc. (IMNM) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IBB and IMNM?
Across a 3-year window, the weekly returns of IBB and IMNM correlate at 0.47, moderate. Little has changed lately, as the 1-year reading of 0.54 lands near the 3-year figure. Stretching to 5 years gives 0.40, with an annualized covariance of 725.2 %².
Within IBB's tracked universe of 168 assets, IMNM comes in at #112 by 3-year correlation. The last year tells two different stories: IMNM led by 134.8 percentage points, +55.4% for IBB against +190.2% for IMNM. Risk is not evenly split, since IMNM carries 3.6 times the volatility of the other side.
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 IMNM: side by side
| IBB (iShares Biotechnology ETF) | IMNM (Immunome, Inc.) | |
|---|---|---|
| 1-year return | +55.4% | +190.2% |
| 5-year return | +26.6% | +102.5% |
| Volatility (ann.) | 20.7% | 75.1% |
| Beta vs S&P 500 | 0.81 | 1.55 |
| Max drawdown (3Y) | -24.9% | -79.7% |
| Market cap | – | $3.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.22% | 0.00% |
| Expense ratio | 0.44% | – |
| Assets under management | $9.2B | – |
| Sector / category | ETF · Thematic | US Listed |
On the fund side, IBB sits in the Health category at iShares, with $9.2B under management, 235 holdings, a 0.44% expense ratio, a 0.22% trailing dividend yield.
Year-by-year returns
| Year | IBB | IMNM |
|---|---|---|
| 2022 | -13.7% | -82.9% |
| 2023 | +3.8% | +384.2% |
| 2024 | -2.4% | -0.7% |
| 2025 | +28.0% | +102.3% |
| 2026 | +27.4% | +34.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IBB and IMNM good diversifiers for each other?
Reasonably. At 0.47, IBB and IMNM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between IBB and IMNM?
As of 2026-08-27, the correlation of weekly returns between IBB and IMNM is 0.47 over 3 years, 0.54 over 1 year and 0.40 over 5 years.
Is IMNM a good diversifier for IBB?
Reasonably. At 0.47, IBB and IMNM keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.47 mean?
On the −1 to +1 scale, 0.47 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-imnm.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ibb-vs-imnm/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IBB correlations · IMNM correlations
