IBB ETF top 10 holdings are 44.9% of the fund as of Jun 30, 2026

IBB ETF top 10 holdings are 44.9% of the fund as of Jun 30, 2026
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IBB holds 44.9% of its assets in its 10 largest positions as of Jun 30, 2026. IBB is iShares Biotechnology ETF.

Showing the top 10 of 253 holdings · as of Jun 30, 2026
Top 10 weight
44.88%
IBB top 10 holdings, by weight
#TickerNameWeightCumulativeSharesMkt valueSectorIndustry
1—Nvaesrtex Pharmaceuticals IncHealth Care · Pharmaceuticals
8.38%		8.4%1,504,364$796.70MHealth CarePharmaceuticals
2
AMGN
Amgen Inc.Health Care · Pharmaceuticals
7.70%		16.1%1,999,056$732.53MHealth CarePharmaceuticals
Share changes, sector and industry · Pro
3
GILD
Gilead Sciences
6.82%		22.9%5,008,278$649.12M
4
REGN
Regeneron Pharmaceuticals, Inc.
4.97%		27.9%727,663$472.84M
5—Argenx Se Sponsored Adr (1 Ads : 1 Ordinary)
3.61%		31.5%374,671$343.50M
6
ALNY
Alnylam Pharmaceuticals Inc.
3.16%		34.6%958,776$300.14M
7
NTRA
Natera Inc
2.94%		37.6%984,742$279.47M
8
RVMD
Revolution Medicines Inc
2.74%		40.3%1,372,904$260.84M
9
BIIB
Biogen Inc.
2.31%		42.6%1,055,448$220.02M
10—Moderna therapeutics
2.25%		44.9%2,620,092$214.32M
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Themes in the top 10
PharmaceuticalsBiotechnologyLife Sciences ToolsBiotechnology ToolsOncologyImmunologyDigital HealthAging Population

IBB ETF Top Holdings

IBB holdings top 10 positions. The top 10 holdings account for 44.9% of the fund, led by Nvaesrtex Pharmaceuticals Inc at 8.4%, Amgen Inc. at 7.7%, Gilead Sciences at 6.8%.

IBB portfolio concentration is moderate, with the top 10 representing 44.9% of total assets. The largest sector exposure is Health Care at 93.8%.

IBB sectors provide a detailed breakdown. IBB overlap shows how holdings compare to other funds in your portfolio.

Compare IBB

IBB vs SPYIBB vs QQQIBB vs VOOIBB vs VTIIBB vs IVVIBB vs SCHDIBB vs VYMIBB vs VXUS
Showing 10 of 253 holdingsTop 10 Weight: 44.88%
#TickerNameIndustryWeightAllocation
1VRTXNvaesrtex Pharmaceuticals IncHealth Care8.38%
2AMGNAmgen Inc.Health Care7.70%
3GILDGilead SciencesHealth Care6.82%
4REGNRegeneron Pharmaceuticals, Inc.Health Care4.97%
5ARGX:ASArgenx Se Sponsored Adr (1 Ads : 1 Ordinary)Health Care3.61%
6ALNYAlnylam Pharmaceuticals Inc.Health Care3.16%
7NTRANatera IncHealth Care2.94%
8RVMDRevolution Medicines IncHealth Care2.74%
9BIIBBiogen Inc. ComHealth Care2.31%
10MRNAModerna therapeuticsHealth Care2.25%
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Holdings Distribution

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