iShares Biotechnology ETF (IBB)
- Expense ratio0.46%
- Net assets$10.73B
- Dividend yield0.16%
- 1-year return+33.96%
- Holdings236
IBB ETF price chart
IBB quote & trading statistics
IBB performance
Annual returns & drawdowns →- YTD+24.15%
- 1 year+33.96%
- 3 years+20.95%/yr
- 5 years+5.65%/yr
- 10 years+9.01%/yr
- 1Y volatility
- 18.53%
- 3Y volatility
- 17.62%
- 3Y Sharpe ratio
- 0.80
Returns include reinvested distributions; 3-, 5- and 10-year figures are annualized.
IBB top 10 holdings
All holdings →| # | Symbol | Name | Weight |
|---|---|---|---|
| 1 | AMGN | Amgen Inc | 8.46% |
| 2 | GILD | Gilead Sciences Inc | 8.27% |
| 3 | VRTX | Vertex Pharmaceuticals Inc | 7.82% |
| 4 | REGN | Regeneron Pharmaceuticals Inc | 5.97% |
| 5 | MRNA | Moderna Inc | 5.12% |
| 6 | NTRA | Natera Inc | 3.96% |
| 7 | ARGX | argenx NV ADR | 3.32% |
| 8 | ILMN | Illumina Inc | 2.96% |
| 9 | BIIB | Biogen Inc | 2.54% |
| 10 | RVMD | Revolution Medicines Inc | 2.54% |
The top 10 holdings make up 51.0% of the fund (236 holdings in total). As of October 25, 2026.
About iShares Biotechnology ETF
The fund generally will invest at least 80% of its assets in the component securities of its underlying index and may invest up to 20% of its assets in certain futures, options and swap contracts, cash and cash equivalents. It is non-diversified.
IBB ETF FAQ
What is the IBB expense ratio?
iShares Biotechnology ETF has a net expense ratio of 0.46%, or $46.00 a year for every $10,000 invested.
How much money is in IBB?
iShares Biotechnology ETF has about $10.73B in net assets.
What are the top holdings of IBB?
The largest positions in IBB are Amgen Inc (8.46%), Gilead Sciences Inc (8.27%), Vertex Pharmaceuticals Inc (7.82%). The fund holds 236 securities in total.
How has IBB performed?
IBB returned +33.96% over the past year and +5.65% a year over the past five years, including reinvested distributions.
Does IBB pay dividends?
IBB has a dividend yield of 0.16% and pays distributions quarterly.
When was IBB launched?
iShares Biotechnology ETF began trading on February 5, 2001.
ETFs similar to IBB
Funds that track the same index or whose top-10 holdings overlap most with IBB's. Overlap: shared top-10 weight as a share of the larger top-10 total of the two funds.
| Symbol | Fund | Overlap | Expense ratio | Net assets | 1-year return |
|---|---|---|---|---|---|
| IBB | iShares Biotechnology ETF | — | 0.46% | $10.73B | +33.96% |
| IBBQ | Invesco Nasdaq Biotechnology ETF | 84% | 0.18% | $113.9M | +38.28% |
| BBH | VanEck Biotech ETF | 67% | 0.33% | $502.0M | +39.42% |
| PBE | Invesco Dynamic Biotechnology & Genome ETF | 65% | 0.56% | $430.9M | +37.84% |
| BIS | ProShares UltraShort Nasdaq Biotechnology | 63% | 0.96% | $1.9M | -48.12% |
| BIB | ProShares Ultra Nasdaq Biotechnology | 52% | 0.95% | $94.8M | +73.77% |