IBB ETF

IBB ETF
$205.29
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IBB holds 47.5% of its assets in its 10 largest positions as of Sep 11, 2026. IBB is iShares Biotechnology ETF.

Showing the top 10 of 249 holdings · as of Sep 11, 2026
Top 10 weight
47.52%
IBB top 10 holdings, by weight
#TickerNameWeightCumulativeSharesMkt valueSectorIndustry
1—Nvaesrtex Pharmaceuticals IncHealth Care · Pharmaceuticals
7.95%		8.0%1,597,506$823.42MHealth CarePharmaceuticals
2
AMGN
Amgen Inc.Health Care · Pharmaceuticals
7.73%		15.7%2,122,822$801.05MHealth CarePharmaceuticals
Sector and industry · Pro
3
GILD
Gilead Sciences Inc
7.38%		23.1%5,318,354$764.35M
4
REGN
Regeneron Pharmaceuticals, Inc.
5.83%		28.9%772,717$603.87M
5—Moderna therapeutics
3.87%		32.8%2,782,310$400.57M
6—Argenx Se Sponsored Adr (1 Ads : 1 Ordinary)
3.78%		36.5%397,871$391.66M
7
NTRA
Natera Inc
3.32%		39.9%1,045,710$343.97M
8
RVMD
Revolution Medicines Inc
2.87%		42.7%1,457,905$297.08M
9
ALNY
Alnylam Pharmaceuticals Inc.
2.44%		45.2%1,018,132$253.19M
10
BIIB
Biogen Inc.
2.35%		47.5%1,120,795$243.38M
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Themes in the top 10
PharmaceuticalsBiotechnologyLife Sciences ToolsBiotechnology ToolsOncologyImmunologyAging PopulationDigital Health

IBB ETF Top Holdings

IBB holdings top 10 positions. The top 10 holdings account for 47.5% of the fund, led by Nvaesrtex Pharmaceuticals Inc at 8.0%, Amgen Inc. at 7.7%, Gilead Sciences Inc at 7.4%.

IBB portfolio concentration is moderate, with the top 10 representing 47.5% of total assets. The largest sector exposure is Health Care at 88.6%.

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 249 holdingsTop 10 Weight: 47.52%
#TickerNameIndustryWeightAllocation
1VRTXNvaesrtex Pharmaceuticals IncHealth Care7.95%
2AMGNAmgen Inc.Health Care7.73%
3GILDGilead Sciences IncUnknown7.38%
4REGNRegeneron Pharmaceuticals, Inc.Health Care5.83%
5MRNAModerna therapeuticsHealth Care3.87%
6ARGX:ASArgenx Se Sponsored Adr (1 Ads : 1 Ordinary)Health Care3.78%
7NTRANatera IncHealth Care3.32%
8RVMDRevolution Medicines IncHealth Care2.87%
9ALNYAlnylam Pharmaceuticals Inc.Health Care2.44%
10BIIBBiogen Inc. ComHealth Care2.35%
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Holdings Distribution

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