iShares Biotechnology ETF (IBB)
NASDAQ: IBB · Real-Time Price · USD
156.49
+2.30 (1.49%)
Oct 20, 2025, 4:00 PM EDT - Market closed

IBB Holdings Information

IBB is an equity ETF with a total of 254 individual holdings. The top holdings are Gilead Sciences stock at 7.82%, Vertex Pharmaceuticals at 7.67%, Amgen at 7.47%, Alnylam Pharmaceuticals at 5.65%, and Regeneron Pharmaceuticals at 5.51%.

Total Holdings
25
Top 10 Percentage
48.76%
Asset Class
Equity
ETF Category
Health
Assets
6.57B
PE Ratio
19.75

Sector Allocation

Top 25 Holdings

No.SymbolName WeightShares
1GILDGilead Sciences, Inc.7.82%4,188,257
2VRTXVertex Pharmaceuticals Incorporated7.67%1,210,027
3AMGNAmgen Inc.7.47%1,644,517
4ALNYAlnylam Pharmaceuticals, Inc.5.65%770,781
5REGNRegeneron Pharmaceuticals, Inc.5.51%627,147
6ARGXargenx SE3.39%264,169
7IQVIQVIA Holdings Inc.3.22%1,034,872
8INSMInsmed Incorporated3.20%1,269,335
9MTDMettler-Toledo International Inc.2.58%125,583
10NTRANatera, Inc.2.24%812,437
11BIIBBiogen Inc.1.95%898,616
12WATWaters Corporation1.86%364,736
13ONCBeOne Medicines AG1.84%382,541
14UTHRUnited Therapeutics Corporation1.77%268,643
15INCYIncyte Corporation1.58%1,184,752
16GMABGenmab A/S1.40%2,780,460
17ILMNIllumina, Inc.1.33%917,579
18NBIXNeurocrine Biosciences, Inc.1.26%592,516
19MEDPMedpace Holdings, Inc.1.12%139,315
20IONSIonis Pharmaceuticals, Inc.1.08%970,691
21EXELExelixis, Inc.0.96%1,600,533
22BMRNBioMarin Pharmaceutical Inc.0.94%1,161,398
23TECHBio-Techne Corporation0.89%944,083
24ASNDAscendis Pharma A/S0.84%262,361
25MRNAModerna, Inc.0.83%2,109,628
As of Oct 17, 2025
Showing 25 of 254 holdings
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As of Oct 17, 2025