iShares Biotechnology ETF (IBB)
Every component of IBB and its weight in the fund, as of 2026-10-19.
| Component | Weight | % | Sector |
|---|---|---|---|
| GILDGilead Sciences Inc · United States | 8.94% | Healthcare | |
| AMGNAmgen Inc · United States | 8.32% | Healthcare | |
| VRTXVertex Pharmaceuticals Inc · United States | 7.36% | Healthcare | |
| MRNAModerna Inc · United States | 6.23% | Healthcare | |
| REGNRegeneron Pharmaceuticals Inc · United States | 5.84% | Healthcare | |
| NTRANatera Inc · United States | 3.72% | Healthcare | |
| ARGXargenx NV ADR · United States | 3.36% | Healthcare | |
| ILMNIllumina Inc · United States | 2.80% | Healthcare | |
| RVMDRevolution Medicines Inc · United States | 2.65% | Healthcare | |
| BIIBBiogen Inc · United States | 2.34% | Healthcare | |
| ONCBeiGene, Ltd. · United States | 2.22% | Healthcare | |
| ALNYAlnylam Pharmaceuticals Inc · United States | 2.21% | Healthcare | |
| INCYIncyte Corporation · United States | 1.61% | Healthcare | |
| INSMInsmed Inc · United States | 1.57% | Healthcare | |
| GMABGenmab AS · United States | 1.55% | Healthcare | |
| UTHRUnited Therapeutics Corporation · United States | 1.55% | Healthcare | |
| ROIVRoivant Sciences Ltd · United States | 1.21% | Healthcare | |
| EXELExelixis Inc · United States | 1.04% | Healthcare | |
| ASNDAscendis Pharma AS · United States | 1.03% | Healthcare | |
| MEDPMedpace Holdings Inc · United States | 1.02% | Healthcare | |
| NBIXNeurocrine Biosciences Inc · United States | 1.00% | Healthcare | |
| CRLCharles River Laboratories · United States | 0.98% | Healthcare | |
| HALOHalozyme Therapeutics Inc · United States | 0.96% | Healthcare | |
| BBIOBridgeBio Pharma Inc · United States | 0.82% | Healthcare | |
| TECHBio-Techne Corp · United States | 0.79% | Healthcare | |
| BMRNBiomarin Pharmaceutical Inc · United States | 0.74% | Healthcare | |
| RGENRepligen Corporation · United States | 0.68% | Healthcare | |
| MDGLMadrigal Pharmaceuticals Inc · United States | 0.67% | Healthcare | |
| TWSTTwist Bioscience Corp · United States | 0.66% | Healthcare | |
| PCVXVaxcyte Inc · United States | 0.65% | Healthcare | |
| CYTKCytokinetics Inc · United States | 0.62% | Healthcare | |
| KRYSKrystal Biotech Inc · United States | 0.62% | Healthcare | |
| TXG10X Genomics Inc · United States | 0.60% | Healthcare | |
| BNTXBioNTech SE · United States | 0.59% | Healthcare | |
| PTGXProtagonist Therapeutics Inc · United States | 0.57% | Healthcare | |
| TEMTempus AI, Inc. Class A Common Stock · United States | 0.56% | Healthcare | |
| KYMRKymera Therapeutics Inc · United States | 0.56% | Healthcare | |
| ARWRArrowhead Pharmaceuticals Inc · United States | 0.53% | Healthcare | |
| IONSIonis Pharmaceuticals Inc · United States | 0.52% | Healthcare | |
| AXSMAxsome Therapeutics Inc · United States | 0.51% | Healthcare | |
| ABVXAbivax SA American Depositary Shares · United States | 0.48% | Healthcare | |
| PRAXPraxis Precision Medicines Inc · United States | 0.48% | Healthcare | |
| ALKSAlkermes Plc · United States | 0.46% | Healthcare | |
| BRKRBruker Corporation · United States | 0.45% | Healthcare | |
| SYRESpyre Therapeutics Inc. · United States | 0.45% | Healthcare | |
| IOVAIovance Biotherapeutics Inc · United States | 0.42% | Healthcare | |
| GRALGRAIL, LLC · United States | 0.41% | Healthcare | |
| RYTMRhythm Pharmaceuticals Inc · United States | 0.40% | Healthcare | |
| KODKodiak Sciences Inc · United States | 0.36% | Healthcare | |
| TVTXTravere Therapeutics Inc · United States | 0.36% | Healthcare | |
| PTCTPTC Therapeutics Inc · United States | 0.35% | Healthcare | |
| COGTCogent Biosciences Inc · United States | 0.34% | Healthcare | |
| DFTXDefinium Therapeutics, Inc. · United States | 0.33% | Healthcare | |
| MIRMMirum Pharmaceuticals Inc · United States | 0.33% | Healthcare | |
| CRSPCrispr Therapeutics AG · United States | 0.32% | Healthcare | |
| ORKAOruka Therapeutics, Inc. · United States | 0.30% | Healthcare | |
| IBRXImmunitybio Inc · United States | 0.29% | Healthcare | |
| CAICaris Life Sciences, Inc. Common Stock · United States | 0.28% | Healthcare | |
| SRRKScholar Rock Holding Corp · United States | 0.28% | Healthcare | |
| ERASErasca Inc · United States | 0.27% | Healthcare | |
| ADPTAdaptive Biotechnologies Corp · United States | 0.27% | Healthcare | |
| CGONCG Oncology, Inc. Common stock · United States | 0.25% | Healthcare | |
| VCYTVeracyte Inc · United States | 0.24% | Healthcare | |
| ACADACADIA Pharmaceuticals Inc · United States | 0.23% | Healthcare | |
| ABCLAbcellera Biologics Inc · United States | 0.23% | Healthcare | |
| CDNACareDx Inc · United States | 0.23% | Healthcare | |
| EWTXEdgewise Therapeutics Inc · United States | 0.23% | Healthcare | |
| XENEXenon Pharmaceuticals Inc · United States | 0.23% | Healthcare | |
| LEGNLegend Biotech Corp · United States | 0.22% | Healthcare | |
| ARQTArcutis Biotherapeutics Inc · United States | 0.22% | Healthcare | |
| TNGXTango Therapeutics Inc · United States | 0.22% | Healthcare | |
| TARSTarsus Pharmaceuticals Inc · United States | 0.22% | Healthcare | |
| IDYAIdeaya Biosciences Inc · United States | 0.21% | Healthcare | |
| AMLXAmylyx Pharmaceuticals Inc · United States | 0.21% | Healthcare | |
| RLAYRelay Therapeutics Inc · United States | 0.21% | Healthcare | |
| DNLIDenali Therapeutics Inc · United States | 0.19% | Healthcare | |
| ELVNEnliven Therapeutics Inc. · United States | 0.18% | Healthcare | |
| NRIXNurix Therapeutics Inc · United States | 0.17% | Healthcare | |
| SMMTSummit Therapeutics PLC · United States | 0.17% | Healthcare | |
| ZLABZai Lab Ltd · United States | 0.16% | Healthcare | |
| IMVTImmunovant Inc · United States | 0.16% | Healthcare | |
| BEAMBeam Therapeutics Inc · United States | 0.16% | Healthcare | |
| ADMAADMA Biologics Inc · United States | 0.16% | Healthcare | |
| FTREFortrea Holdings Inc. · United States | 0.16% | Healthcare | |
| DYNDyne Therapeutics Inc · United States | 0.16% | Healthcare | |
| NVAXNovavax Inc · United States | 0.15% | Healthcare | |
| RXRXRecursion Pharmaceuticals Inc · United States | 0.15% | Healthcare | |
| VCELVericel Corp Ord · United States | 0.14% | Healthcare | |
| AGIOAgios Pharm · United States | 0.14% | Healthcare | |
| AUPHAurinia Pharmaceuticals Inc · United States | 0.14% | Healthcare | |
| RCUSArcus Biosciences Inc · United States | 0.13% | Healthcare | |
| SRPTSarepta Therapeutics Inc · United States | 0.13% | Healthcare | |
| GRFSGrifols SA ADR · United States | 0.13% | Healthcare | |
| ZYMEZymeworks Inc. Common Stock · United States | 0.12% | Healthcare | |
| BCRXBioCryst Pharmaceuticals Inc · United States | 0.12% | Healthcare | |
| XNCRXencor Inc · United States | 0.12% | Healthcare | |
| VERAVera Therapeutics Inc · United States | 0.12% | Healthcare | |
| NAMSNewAmsterdam Pharma Company N.V. Ordinary Shares · United States | 0.11% | Healthcare | |
| NTLAIntellia Therapeutics Inc · United States | 0.11% | Healthcare | |
| IRONDisc Medicine Inc. · United States | 0.11% | Healthcare | |
| URGNUroGen Pharma Ltd · United States | 0.11% | Healthcare | |
| MBXMBX Biosciences, Inc. Common Stock · United States | 0.11% | Healthcare | |
| QUREUniqure NV · United States | 0.11% | Healthcare | |
| NVCRNovocure Ltd · United States | 0.10% | Healthcare | |
| BHVNBiohaven Ltd. · United States | 0.10% | Healthcare | |
| VIRVir Biotechnology Inc · United States | 0.10% | Healthcare | |
| LKFTLakefront Biotherapeutics NV · United States | 0.09% | Healthcare | |
| ANABAnaptysBio Inc · United States | 0.09% | Healthcare | |
| GPCRStructure Therapeutics Inc. American Depositary Shares · United States | 0.09% | Healthcare | |
| RAREUltragenyx · United States | 0.09% | Healthcare | |
| IMCRImmunocore Holdings Ltd · United States | 0.09% | Healthcare | |
| CMPSCompass Pathways Plc · United States | 0.09% | Healthcare | |
| STOKStoke Therapeutics Inc · United States | 0.09% | Healthcare | |
| ABSIAbsci Corp · United States | 0.09% | Healthcare | |
| MLYSMineralys Therapeutics, Inc. Common Stock · United States | 0.09% | Healthcare | |
| PGENPrecigen Inc · United States | 0.09% | Healthcare | |
| NUVBNuvation Bio Inc · United States | 0.09% | Healthcare | |
| PSNLPersonalis Inc · United States | 0.08% | Healthcare | |
| TRVITrevi Therapeutics Inc · United States | 0.08% | Healthcare | |
| SEPNSepterna, Inc. Common Stock · United States | 0.08% | Healthcare | |
| SNDXSyndax Pharmaceuticals Inc · United States | 0.08% | Healthcare | |
| REPLReplimune Group Inc · United States | 0.07% | Healthcare | |
| MESOMesoblast Ltd · United States | 0.07% | Healthcare | |
| CSTLCastle Biosciences Inc · United States | 0.07% | Healthcare | |
| JANXJanux Therapeutics Inc · United States | 0.07% | Healthcare | |
| PHVSPharvaris BV · United States | 0.07% | Healthcare | |
| INBXInhibrx Biosciences, Inc. · United States | 0.07% | Healthcare | |
| MAZEMaze Therapeutics, Inc. Common Stock · United States | 0.07% | Healthcare | |
| TSHATaysha Gene Therapies Inc · United States | 0.07% | Healthcare | |
| TYRATyra Biosciences Inc · United States | 0.07% | Healthcare | |
| ALVOAlvotech · United States | 0.07% | Healthcare | |
| MNKDMannKind Corp · United States | 0.07% | Healthcare | |
| GHRSGH Research PLC · United States | 0.07% | Healthcare | |
| STVNStevanato Group SpA · United States | 0.07% | Healthcare | |
| RIGLRigel Pharmaceuticals Inc · United States | 0.06% | Healthcare | |
| RAPPRapport Therapeutics, Inc. Common Stock · United States | 0.06% | Healthcare | |
| ORICOric Pharmaceuticals Inc · United States | 0.06% | Healthcare | |
| ZBIOZenas BioPharma, Inc. Common Stock · United States | 0.06% | Healthcare | |
| KURAKura Oncology Inc · United States | 0.06% | Healthcare | |
| BCAXBicara Therapeutics Inc. Common Stock · United States | 0.06% | Healthcare | |
| GERNGeron Corporation · United States | 0.06% | Healthcare | |
| ANROAlto Neuroscience, Inc. · United States | 0.06% | Healthcare | |
| MRVIMaravai Lifesciences Holdings Inc · United States | 0.05% | Healthcare | |
| MGTXMeiraGTx Holdings PLC · United States | 0.05% | Healthcare | |
| ABUSArbutus Biopharma Corp · United States | 0.05% | Healthcare | |
| FDMT4D Molecular Therapeutics Inc · United States | 0.05% | Healthcare | |
| CGEMCullinan Oncology LLC · United States | 0.04% | Healthcare | |
| ZVRAZevra Therapeutics Inc. · United States | 0.04% | Healthcare | |
| CTKBCytek Biosciences Inc · United States | 0.04% | Healthcare | |
| AVBPArriVent BioPharma, Inc. Common Stock · United States | 0.04% | Healthcare | |
| CRVSCorvus Pharmaceuticals Inc · United States | 0.04% | Healthcare | |
| DNAGinkgo Bioworks Holdings · United States | 0.04% | Healthcare | |
| IRWDIronwood Pharmaceuticals Inc · United States | 0.04% | Healthcare | |
| ALMSAlumis Inc · United States | 0.04% | Healthcare | |
| ANNXAnnexon Inc · United States | 0.04% | Healthcare | |
| GLUEMonte Rosa Therapeutics Inc · United States | 0.04% | Healthcare | |
| OPKOpko Health Inc · United States | 0.04% | Healthcare | |
| PACBPacific Biosciences of California · United States | 0.04% | Healthcare | |
| OABIOmniAb Inc. · United States | 0.04% | Healthcare | |
| CADLCandel Therapeutics Inc · United States | 0.04% | Healthcare | |
| WVEWave Life Sciences Ltd · United States | 0.04% | Healthcare | |
| SVRASavara Inc · United States | 0.04% | Healthcare | |
| SLDBSolid Biosciences LLC · United States | 0.04% | Healthcare | |
| SGMTSagimet Biosciences Inc. Series A Common Stock · United States | 0.03% | Healthcare | |
| OLMAOlema Pharmaceuticals Inc · United States | 0.03% | Healthcare | |
| CTMXCytomX Therapeutics Inc · United States | 0.03% | Healthcare | |
| SANASana Biotechnology Inc · United States | 0.03% | Healthcare | |
| ALTAltimmune Inc · United States | 0.03% | Healthcare | |
| AURAAura Biosciences Inc · United States | 0.03% | Healthcare | |
| RGNXRegenxbio Inc · United States | 0.03% | Healthcare | |
| ARVNArvinas Inc · United States | 0.03% | Healthcare | |
| ACRSAclaris Therapeutics Inc · United States | 0.03% | Healthcare | |
| NGNENeurogene Inc · United States | 0.03% | Healthcare | |
| MYGNMyriad Genetics Inc · United States | 0.03% | Healthcare | |
| PHATPhathom Pharmaceuticals Inc · United States | 0.03% | Healthcare | |
| FLGTFulgent Genetics Inc · United States | 0.03% | Healthcare | |
| PRTAProthena Corporation plc · United States | 0.03% | Healthcare | |
| DSGNDesign Therapeutics Inc · United States | 0.02% | Healthcare | |
| EBSEmergent Biosolutions Inc · United States | 0.02% | Healthcare | |
| SLNSilence Therapeutics PLC · United States | 0.02% | Healthcare | |
| PRMEPrime Medicine, Inc. Common Stock · United States | 0.02% | Healthcare | |
| EDITEditas Medicine Inc · United States | 0.02% | Healthcare | |
| ALLOAllogene Therapeutics Inc · United States | 0.02% | Healthcare | |
| ENTAEnanta Pharmaceuticals Inc · United States | 0.02% | Healthcare | |
| CCCCC4 Therapeutics Inc · United States | 0.02% | Healthcare | |
| ARCTArcturus Therapeutics Holdings Inc · United States | 0.02% | Healthcare | |
| AUTLAutolus Therapeutics Ltd · United States | 0.02% | Healthcare | |
| AVIRAtea Pharmaceuticals Inc · United States | 0.02% | Healthcare | |
| FULCFulcrum Therapeutics Inc · United States | 0.02% | Healthcare | |
| RCKTRocket Pharmaceuticals Inc · United States | 0.02% | Healthcare | |
| LABStandard Biotools Inc · United States | 0.02% | Healthcare | |
| SPRYARS Pharmaceuticals, Inc · United States | 0.02% | Healthcare | |
| VNDAVanda Pharmaceuticals Inc · United States | 0.02% | Healthcare | |
| CTNMContineum Therapeutics, Inc. Class A Common Stock · United States | 0.02% | Healthcare | |
| CABACabaletta Bio Inc · United States | 0.02% | Healthcare | |
| KYTXKyverna Therapeutics, Inc. Common Stock · United States | 0.02% | Healthcare | |
| QSIQuantumSi Inc · United States | 0.02% | Healthcare | |
| CATXPerspective Therapeutics Inc. · United States | 0.01% | Healthcare | |
| IMRXImmuneering Corp · United States | 0.01% | Healthcare | |
| KROSKeros Therapeutics Inc · United States | 0.01% | Healthcare | |
| LXEOLexeo Therapeutics, Inc. Common Stock · United States | 0.01% | Healthcare | |
| TECXTectonic Therapeutic, Inc. · United States | 0.01% | Healthcare | |
| LCTXLineage Cell Therapeutics Inc · United States | 0.01% | Healthcare | |
| BIOABioAge Labs, Inc · United States | 0.01% | Healthcare | |
| PEPGPepGen Ltd · United States | 0.01% | Healthcare | |
| ACIUAC Immune Ltd · United States | 0.01% | Healthcare | |
| ADCTADC Therapeutics SA · United States | 0.01% | Healthcare | |
| BBOTBridgeBio Oncology Therapeutics, Inc. · United States | 0.01% | Healthcare | |
| CDXSCodexis Inc · United States | 0.01% | Healthcare | |
| AVXLAnavex Life Sciences Corp · United States | 0.01% | Healthcare | |
| BCYCBicycle Therapeutics Ltd · United States | 0.01% | Healthcare | |
| PYXSPyxis Oncology Inc · United States | 0.01% | Healthcare | |
| UPBUpstream Bio, Inc. · United States | 0.01% | Healthcare | |
| QTRXQuanterix Corp · United States | 0.01% | Healthcare | |
| TRDAEntrada Therapeutics Inc · United States | 0.01% | Healthcare | |
| NBPNovaBridge Biosciences · United States | 0.01% | Healthcare | |
| HUMAHumacyte Inc · United States | 0.01% | Healthcare | |
| SIONSionna Therapeutics, Inc. Common Stock · United States | 0.01% | Healthcare | |
| VYGRVoyager Therapeutics Inc · United States | 0.01% | Healthcare | |
| LENZLENZ Therapeutics Inc · United States | 0.01% | Healthcare | |
| LRMRLarimar Therapeutics Inc · United States | 0.01% | Healthcare | |
| TNYATenaya Therapeutics Inc · United States | 0.01% | Healthcare | |
| BDTXBlack Diamond Therapeutics Inc · United States | 0.01% | Healthcare | |
| TKNOAlpha Teknova Inc · United States | 0.01% | Healthcare | |
| LYELLyell Immunopharma Inc · United States | 0.00% | Healthcare | |
| FHTXFoghorn Therapeutics Inc · United States | 0.00% | Healthcare | |
| MENSJyong Biotech Ltd. Ordinary Shares · United States | 0.00% | Healthcare | |
| GOSSGossamer Bio Inc · United States | 0.00% | Healthcare | |
| AARDAardvark Therapeutics, Inc. Common Stock · United States | 0.00% | Healthcare | |
| AKEAKERO THERAPEUTICS CVR · United States | 0.00% | ||
| CRBUCaribou Biosciences Inc · United States | 0.00% | Healthcare | |
| CLLSCellectis SA · United States | 0.00% | Healthcare | |
| NMRANeumora Therapeutics, Inc. · United States | 0.00% | Healthcare | |
| IMMPImmutep Ltd ADR · United States | 0.00% | Healthcare | |
| --Seattle SpinCo [HPE]--Temp placeholder security · United States | 0.00% | ||
| THRDThird Harmonic Bio Inc. · United States | 0.00% | Healthcare |
From the market data provider's fund data, read 2026-10-19. Returns are the fund's own; past returns say nothing certain about future ones. None of this is advice.