iShares Biotechnology ETF (IBB)
NASDAQ: IBB · Real-Time Price · USD
170.16
+2.89 (1.73%)
At close: May 4, 2026, 4:00 PM EDT
170.14
-0.02 (-0.01%)
After-hours: May 4, 2026, 6:16 PM EDT

IBB Holdings Information

IBB is an equity ETF with a total of 257 individual holdings. The top holdings are Amgen stock at 7.46%, Gilead Sciences at 7.35%, Vertex Pharmaceuticals at 7.20%, Regeneron Pharmaceuticals at 6.67%, and Alnylam Pharmaceuticals at 3.77%.

Total Holdings
257
Top 10 Percentage
45.83%
Asset Class
Equity
ETF Category
Health
Assets
7.93B
PE Ratio
22.05

Breakdown by Sector

Top 25 Holdings

No.SymbolName WeightShares
1AMGNAmgen Inc.7.46%1,723,744
2GILDGilead Sciences, Inc.7.35%4,492,040
3VRTXVertex Pharmaceuticals Incorporated7.20%1,346,719
4REGNRegeneron Pharmaceuticals, Inc.6.67%753,886
5ALNYAlnylam Pharmaceuticals, Inc.3.77%973,961
6ARGXargenx SE3.32%339,613
7INSMInsmed Incorporated2.69%1,578,690
8BIIBBiogen Inc.2.57%1,084,844
9NTRANatera, Inc.2.51%975,027
10RVMDRevolution Medicines, Inc.2.30%1,276,194
11UTHRUnited Therapeutics Corporation2.24%313,663
12ONCBeOne Medicines AG1.94%526,206
13ILMNIllumina, Inc.1.74%1,100,982
14INCYIncyte Corporation1.74%1,459,404
15MRNAModerna, Inc.1.54%2,676,270
16ROIVRoivant Sciences Ltd.1.29%3,618,521
17NBIXNeurocrine Biosciences, Inc.1.19%723,331
18GMABGenmab A/S1.17%3,536,142
19IONSIonis Pharmaceuticals, Inc.1.12%1,198,520
20BBIOBridgeBio Pharma, Inc.1.10%1,231,544
21EXELExelixis, Inc.1.03%1,861,184
22MDGLMadrigal Pharmaceuticals, Inc.1.00%154,475
23ASNDAscendis Pharma A/S0.97%338,060
24BMRNBioMarin Pharmaceutical Inc.0.95%1,404,282
25ARWRArrowhead Pharmaceuticals, Inc.0.89%969,344
Showing 25 of 257 holdings
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As of Apr 30, 2026