IBB holdings — iShares Biotechnology ETF
iShares Biotechnology ETF (IBB) held 252 positions with net assets of $9.09B as of June 30, 2026, according to its Form N-PORT report to the SEC. Its top 10 holdings make up 54.3% of the fund, led by BlackRock Funds III, VRTX, AMGN.
IBB top holdings
- BlackRock Funds III — 11.66% ($1.06B)
- VRTX Vertex Pharmaceuticals, Inc. — 8.08% ($734M)
- AMGN Amgen, Inc. — 7.83% ($711M)
- GILD Gilead Sciences, Inc. — 6.84% ($622M)
- REGN Regeneron Pharmaceuticals, Inc. — 4.91% ($446M)
- ARGX Argenx SE — 3.76% ($342M)
- ALNY Alnylam Pharmaceuticals, Inc. — 3.12% ($284M)
- NTRA Natera, Inc. — 2.89% ($263M)
- RVMD Revolution Medicines, Inc. — 2.78% ($253M)
- BIIB Biogen, Inc. — 2.47% ($224M)
- ILMN Illumina, Inc. — 2.07% ($188M)
- MRNA Moderna, Inc. — 1.98% ($180M)
- INSM Insmed, Inc. — 1.78% ($162M)
- ONC BeOne Medicines Ltd. — 1.77% ($161M)
- INCY Incyte Corp. — 1.75% ($159M)
- UTHR United Therapeutics Corp. — 1.73% ($158M)
- Roivant Sciences Ltd. — 1.43% ($130M)
- NBIX Neurocrine Biosciences, Inc. — 1.30% ($118M)
- Ascendis Pharma A/S — 1.29% ($117M)
- GMAB Genmab A/S — 1.12% ($102M)
- EXEL Exelixis, Inc. — 1.03% ($93.9M)
- IONS Ionis Pharmaceuticals, Inc. — 1.00% ($91.1M)
- BBIO Bridgebio Pharma, Inc. — 0.98% ($89.2M)
- MEDP Medpace Holdings, Inc. — 0.95% ($86.3M)
- MDGL Madrigal Pharmaceuticals, Inc. — 0.91% ($82.5M)
What are IBB's top 10 holdings?
BlackRock Funds III (11.7%), VRTX (8.1%), AMGN (7.8%), GILD (6.8%), REGN (4.9%), ARGX (3.8%), ALNY (3.1%), NTRA (2.9%), RVMD (2.8%), BIIB (2.5%).
How many stocks are in IBB?
iShares Biotechnology ETF reported 252 holdings as of June 30, 2026.