IBB vs IDNA: holdings overlap, shared companies and scores
As of October 9, 2026, IBB and IDNA overlap 23.3% by weight. iShares Biotechnology ETF (IBB): U.S. biotechnology stocks. iShares Genomics Immunology and Healthcare ETF (IDNA): Genomics and healthcare innovators.
Updated October 9, 2026
Where IBB trades against its own history
IBB trades at 27.2 times earnings, against its own median of 21.6, and is more expensive than 83% of its own last 7 years.
What moved IBB and IDNA this week
IBB rose 0.6% in the week to October 9, 2026. The holdings that moved it most were Moderna (+18.4%), Gilead Sciences (+4.4%) and Amgen (+2.9%); Argenx SE (−10.2%) pushed the other way.
IDNA rose 1.2% in the week to October 9, 2026. The holdings that moved it most were Moderna (+18.4%), Genmab A/S (+8.0%) and Novavax (+21.9%); Twist Bioscience (−15.3%) pushed the other way.
What do IBB and IDNA each hold?
What's inside IBB: AI 1%.
50% of IBB is its ten largest holdings.
48% of IDNA is its ten largest holdings.
How much do IBB and IDNA overlap? 23.3% by weight
As of October 9, 2026, IBB and IDNA overlap 23.3% by weight.
30% of IBB is already inside IDNA.
74% of IDNA is already inside IBB.
IBB holds 240 companies and IDNA holds 58; 34 are in both.
Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score IBB and IDNA? 4.0 and 2.5 out of 10
As of October 9, 2026, ETF Copilot scores IBB 4.0 out of 10 and IDNA 2.5 out of 10.
They differ most on Growth: IBB 9.4 and IDNA 2.6.
The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.
| Factor | IBB | IDNA |
|---|---|---|
| Growth | 9.4 | 2.6 |
| Value | 0.5 | — |
| Risk | 2.7 | 0.8 |
| Quality | 0.9 | 0.4 |
| Return | 3.8 | 5.0 |
IBB is the cheaper of the two at 0.44% a year
As of October 9, 2026, IBB charges 0.44% a year, yields 0.19% and holds $10.4B in assets across 240 positions.
As of October 9, 2026, IDNA charges 0.47% a year, yields 0.69% and holds $308M in assets across 58 positions.
| Measure | IBB | IDNA |
|---|---|---|
| Expense ratio | 0.44% | 0.47% |
| Dividend yield | 0.19% | 0.69% |
| Assets under management | $10.4B | $308M |
| Holdings | 240 | 58 |
Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.
Compare with similar funds
Cite this
ETF Copilot, “IBB vs IDNA holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/ibb-vs-idna
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