iShares Biotechnology ETF (IBB)
NASDAQ: IBB · Real-Time Price · USD
176.66
+2.54 (1.46%)
At close: Apr 17, 2026, 4:00 PM EDT
177.62
+0.96 (0.54%)
After-hours: Apr 17, 2026, 7:55 PM EDT

IBB Holdings Information

IBB is an equity ETF with a total of 259 individual holdings. The top holdings are Gilead Sciences stock at 7.47%, Amgen at 7.23%, Vertex Pharmaceuticals at 7.04%, Regeneron Pharmaceuticals at 6.75%, and Alnylam Pharmaceuticals at 3.74%.

Total Holdings
259
Top 10 Percentage
45.19%
Asset Class
Equity
ETF Category
Health
Assets
8.21B
PE Ratio
21.96

Breakdown by Sector

Top 25 Holdings

No.SymbolName WeightShares
1GILDGilead Sciences, Inc.7.47%4,511,013
2AMGNAmgen Inc.7.23%1,731,346
3VRTXVertex Pharmaceuticals Incorporated7.04%1,352,625
4REGNRegeneron Pharmaceuticals, Inc.6.75%757,444
5ALNYAlnylam Pharmaceuticals, Inc.3.74%978,624
6ARGXargenx SE3.38%341,210
7INSMInsmed Incorporated2.71%1,586,236
8NTRANatera, Inc.2.30%979,603
9BIIBBiogen Inc.2.29%1,089,912
10RVMDRevolution Medicines, Inc.2.29%1,281,746
11UTHRUnited Therapeutics Corporation2.19%315,181
12ONCBeOne Medicines AG2.03%528,593
13MRNAModerna, Inc.1.76%2,688,065
14ILMNIllumina, Inc.1.75%1,106,140
15INCYIncyte Corporation1.67%1,466,397
16ROIVRoivant Sciences Ltd.1.27%3,635,534
17GMABGenmab A/S1.20%3,551,402
18BBIOBridgeBio Pharma, Inc.1.15%1,237,399
19NBIXNeurocrine Biosciences, Inc.1.12%726,746
20IONSIonis Pharmaceuticals, Inc.1.08%1,204,296
21MEDPMedpace Holdings, Inc.1.05%169,745
22EXELExelixis, Inc.0.99%1,869,381
23ASNDAscendis Pharma A/S0.99%339,595
24MDGLMadrigal Pharmaceuticals, Inc.0.97%155,180
25BMRNBioMarin Pharmaceutical Inc.0.91%1,410,862
Showing 25 of 259 holdings
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As of Apr 16, 2026