iShares Biotechnology ETF IBB
Source: Yahoo Finance (opens in a new tab) Observed · 1 day ago Quotes may be delayed
- Expense ratio
- 0.44%
- Net assets
- $9.1B
- Holdings
- 252
- 12-month distribution yield
- 0.16%
- Asset class
- Equity
iShares Biotechnology ETF (IBB) is an exchange-traded fund listed on the Nasdaq in the United States, issued by iShares. Its category is Equity · Global (equity). Its last price was US$210.50 on 20 Oct 2026. Its expense ratio is 0.44% a year, from its prospectus dated 1 Aug 2025. It reported net assets of US$9.09 billion as of 30 Jun 2026. Its latest holdings report lists 252 holdings as of 30 Jun 2026. Over the last 12 months it paid distributions of US$0.34 a unit, a 12-month distribution yield of 0.16%, paid quarterly.
Fees
- Total annual operating expenses (gross)
- 0.44%
- Net, after fee waivers or reimbursements
- No waiver stated
- Management fee
- 0.44%
- Prospectus date
- 1 Aug 2025
- Filed with the SEC
- 22 Jul 2025
Size and reporting
- Net assets
- $9,087,528,995
- Total assets
- $10,151,979,589
- Holdings as of
- 30 Jun 2026
- Report made public
- 25 Aug 2026 (56 days after the month end)
Top holdings
Largest 25 of 252 positions, as of 30 Jun 2026. Weight is the percent of net assets the fund reported.
| # | Holding | Identifier | Weight | Value (USD) | Type | Country | Currency |
|---|---|---|---|---|---|---|---|
| 1 | BlackRock Funds III BlackRock Cash Funds: Institutional, SL Agency Shares | US0669225197 | 11.66% | $1.1B | Short-term investment vehicles (cash funds) | United States | USD |
| 2 | Vertex Pharmaceuticals, Inc. | US92532F1003 | 8.08% | $734.3M | Equity (common) | United States | USD |
| 3 | Amgen, Inc. | US0311621009 | 7.83% | $711.4M | Equity (common) | United States | USD |
| 4 | Gilead Sciences, Inc. | US3755581036 | 6.84% | $621.8M | Equity (common) | United States | USD |
| 5 | Regeneron Pharmaceuticals, Inc. | US75886F1075 | 4.91% | $445.9M | Equity (common) | United States | USD |
| 6 | Argenx SE | US04016X1019 | 3.76% | $341.6M | Equity (common) | Netherlands | USD |
| 7 | Alnylam Pharmaceuticals, Inc. | US02043Q1076 | 3.12% | $283.6M | Equity (common) | United States | USD |
| 8 | Natera, Inc. | US6323071042 | 2.89% | $262.7M | Equity (common) | United States | USD |
| 9 | Revolution Medicines, Inc. | US76155X1000 | 2.78% | $252.7M | Equity (common) | United States | USD |
| 10 | Biogen, Inc. | US09062X1037 | 2.47% | $224.1M | Equity (common) | United States | USD |
| 11 | Illumina, Inc. | US4523271090 | 2.07% | $188.0M | Equity (common) | United States | USD |
| 12 | Moderna, Inc. | US60770K1079 | 1.98% | $180.3M | Equity (common) | United States | USD |
| 13 | Insmed, Inc. | US4576693075 | 1.78% | $162.2M | Equity (common) | United States | USD |
| 14 | BeOne Medicines Ltd. | US07725L1026 | 1.77% | $160.8M | Equity (common) | Switzerland | USD |
| 15 | Incyte Corp. | US45337C1027 | 1.75% | $159.0M | Equity (common) | United States | USD |
| 16 | United Therapeutics Corp. | US91307C1027 | 1.73% | $157.6M | Equity (common) | United States | USD |
| 17 | Roivant Sciences Ltd. | BMG762791017 | 1.43% | $129.6M | Equity (common) | Bermuda | USD |
| 18 | Neurocrine Biosciences, Inc. | US64125C1099 | 1.30% | $118.0M | Equity (common) | United States | USD |
| 19 | Ascendis Pharma A/S | DK0060615755 | 1.29% | $116.9M | Equity (common) | Denmark | USD |
| 20 | Genmab A/S | US3723032062 | 1.12% | $101.7M | Equity (common) | Denmark | USD |
| 21 | Exelixis, Inc. | US30161Q1040 | 1.03% | $93.9M | Equity (common) | United States | USD |
| 22 | Ionis Pharmaceuticals, Inc. | US4622221004 | 1.00% | $91.1M | Equity (common) | United States | USD |
| 23 | Bridgebio Pharma, Inc. | US10806X1028 | 0.98% | $89.2M | Equity (common) | United States | USD |
| 24 | Medpace Holdings, Inc. | US58506Q1094 | 0.95% | $86.3M | Equity (common) | United States | USD |
| 25 | Madrigal Pharmaceuticals, Inc. | US5588681057 | 0.91% | $82.5M | Equity (common) | United States | USD |
Breakdowns
Sums of reported weights over every position in the report. Totals can differ from 100% because of derivatives, borrowing and cash.
Asset type
| Type | Weight | Bar |
|---|---|---|
| Equity (common) | 99.88% | |
| Short-term investment vehicles (cash funds) | 12.04% | |
| Other | <0.01% | |
| Equity derivatives | <0.01% |
Country
| Country | Weight | Bar |
|---|---|---|
| United States | 96.35% | |
| Netherlands | 4.25% | |
| Denmark | 2.40% | |
| Switzerland | 2.17% | |
| Bermuda | 1.43% | |
| Canada | 1.16% | |
| Cayman Islands | 0.87% | |
| Ireland | 0.80% | |
| France | 0.68% | |
| Germany | 0.66% | |
| United Kingdom | 0.28% | |
| British Virgin Islands | 0.15% | |
| Other (8) | 0.72% |
Currency exposure
| Currency | Weight | Bar |
|---|---|---|
| US dollar (USD) | 111.92% |
Sector
| Sector | Weight | Bar |
|---|---|---|
| Health Care | 76.38% | |
| Health Technology | 1.47% | |
| Industrials | 0.52% | |
| Technology | 0.48% |
Source: SEC Form N-PORT (opens in a new tab) Holdings as of
Distributions
- Paid in the last 12 months
- $0.3400
- 12-month yield
- 0.16%
- Frequency
- Quarterly
- Latest ex-date
- 15 Sep 2026
12-month yield = distributions per unit with an ex-date in the last 12 months ($0.3400) ÷ latest price ($210.50) × 100 = 0.16%. It looks back, so it is not a forecast; special distributions in the window are included.
Why a distribution yield is not the fund's return: yield vs total return
Distribution history table (18 payments)
| Ex-date | Amount per unit |
|---|---|
| 15 Sep 2026 | $0.0110 |
| 15 Jun 2026 | $0.0240 |
| 17 Mar 2026 | $0.1220 |
| 16 Dec 2025 | $0.1830 |
| 16 Sep 2025 | $0.0830 |
| 18 Mar 2025 | $0.1210 |
| 17 Dec 2024 | $0.0620 |
| 25 Sep 2024 | $0.2000 |
| 21 Mar 2024 | $0.1260 |
| 20 Dec 2023 | $0.1240 |
| 26 Sep 2023 | $0.1530 |
| 7 Jun 2023 | $0.0060 |
| 23 Mar 2023 | $0.0650 |
| 13 Dec 2022 | $0.1010 |
| 26 Sep 2022 | $0.1590 |
| 9 Jun 2022 | $0.0310 |
| 24 Mar 2022 | $0.1180 |
| 13 Dec 2021 | $0.0410 |
Filings and sources
- Form N-PORT report for June 2026 (opens in a new tab)
- Prospectus filing with the fee table (opens in a new tab)
- All SEC filings for this fund series (S000004350) (opens in a new tab)
- Nasdaq Trader symbol directory (opens in a new tab)
- Yahoo Finance quote and distributions (opens in a new tab)
- How the ETF figures are collected
Compare with
Largest funds in the same category:
- IBB and VT Vanguard Total World Stock Index ETF
- IBB and SMH VanEck Semiconductor ETF
- IBB and SOXX iShares PHLX SOX Semiconductor Sector Index Fund
- IBB and CGDV Capital Group Dividend Value ETF