Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
EZU vs IBB: how they differ
EZU and IBB hold 1% of their weight in the same names, and IBB returned more over the year.
iShares MSCI Eurozone ETF and iShares Biotechnology ETF.
What they hold in common
By the books each fund has filed, EZU and IBB hold 1% of their money in the same securities at the same weight.
| Holding | EZU | IBB |
|---|---|---|
| ARGENX | 0.81% | 3.78% |
| ABIVAX SA | 0.10% | 0.55% |
| BLK CSH FND TREASURY SL AGENCY | 0.04% | 0.12% |
| ERSTE GROUP BANK AG | 0.57% | 0.02% |
| Only in EZU | Only in IBB |
|---|---|
| ASML HOLDING 8.67% | VERTEX PHARMACEUTICALS 7.94% |
| SIEMENS N AG 2.83% | AMGEN INC 7.85% |
| SAP 2.73% | GILEAD SCIENCES 7.44% |
| ALLIANZ 2.54% | REGENERON PHARMACEUTICALS 5.92% |
| SCHNEIDER ELECTRIC 2.40% | MODERNA 3.67% |
| TOTALENERGIES 2.31% | NATERA 3.30% |
| BANCO BILBAO VIZCAYA ARGENTARIA SA 2.12% | REVOLUTION MEDICINES 2.87% |
| IBERDROLA 1.88% | ALNYLAM PHARMACEUTICALS 2.44% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.
| EZU iShares MSCI Eurozone ETF | IBB iShares Biotechnology ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | MSCI Eurozone | Biotechnology |
| Total return, 1 year | +18.0% | +41.5% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +0.5 pts | +24.0 pts |
| Expense ratio | 0.50% | 0.44% |
| Already in the S&P 500 | 0.0% | 35.6% |
| Holdings | 220 | 233 |
EZU in plain words
EZU is an index equity fund tracking the MSCI Eurozone. Over the year to Sep 11, 2026 it returned +18.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.50% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 220 positions, with the top ten at 30.0%. It sat 3.3% below its high of Aug 14, 2026 on Sep 11, 2026.
IBB in plain words
IBB is an index equity fund tracking the Biotechnology. Over the year to Sep 11, 2026 it returned +41.5% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.44% a year. By its holdings filed for Sep 10, 2026, 36% of the fund by weight is stocks the S&P 500 also holds, across 233 positions, with the top ten at 47.5%. It sat 6.5% below its high of Aug 19, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, EZU or IBB?
- In the year to Sep 13, 2026, with distributions reinvested, EZU returned +18.0% and IBB returned +41.5%, so IBB returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, EZU or IBB?
- EZU charges 0.50% a year and IBB charges 0.44%, so IBB is cheaper. Fees come from each fund's prospectus.
- How much do EZU and IBB overlap with the S&P 500?
- By their latest filed holdings, 0% of EZU and 36% of IBB by weight is stocks the S&P 500 already holds. Between the two funds, 1% of their books are the same securities at the same weight.
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Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, EZU against IBB, data as of Sep 13, 2026. https://etfiq.com/compare/any/ezu-vs-ibb Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources