Companies: 10,645     total market cap: $139.079 T
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iShares Biotechnology ETF
IBB
#285
ETF rank
$8.75 B
Marketcap
๐Ÿ‡บ๐Ÿ‡ธ US
Market
$177.01
Share price
-0.35%
Change (1 day)
30.07%
Change (1 year)
๐Ÿงฌ Biotech ETFs
Categories
iShares Biotechnology ETF (IBB) seeks to track the performance of the NYSE Biotechnology Index, providing exposure to U.S.-listed companies in the biotechnology sector. The fund offers targeted access to biotech stocks, allowing investors to express a view on the industry.

iShares Biotechnology ETF - Holdings

Etf holdings as of January 20, 2026

Number of holdings: 259

Full holdings list

Weight %NameTickerShares Held
8.33%VERTEX PHARMACEUTICALS INCVRTX1590476.00
8.06%GILEAD SCIENCES INCGILD5480321.00
7.83%AMGEN INCAMGN1996298.00
6.48%REGENERON PHARMACEUTICALS INCREGN745375.00
4.02%ALNYLAM PHARMACEUTICALS INCALNY955841.00
3.00%INSMED INCINSM1549163.00
2.86%ARGENX SE ADRARGX298139.00
2.69%NATERA INCNTRA967462.00
2.11%BIOGEN INCBIIB1078771.00
2.11%BEONE MEDICINES AGONC532611.00
1.91%ILLUMINA INCILMN1093987.00
1.74%INCYTE CORPINCY1430431.00
1.70%UNITED THERAPEUTICS CORPUTHR305962.00
1.68%REVOLUTION MEDICINES INCRVMD1217647.00
1.34%GENMAB SPONSORED ADRGMAB3621914.00
1.30%MODERNA INCMRNA2553055.00
1.19%MEDPACE HOLDINGS INCMEDP166451.00
1.14%NEUROCRINE BIOSCIENCES INCNBIX715082.00
1.11%BRIDGEBIO PHARMA INCBBIO1212028.00
1.07%IONIS PHARMACEUTICALS INCIONS1170092.00
0.99%EXELIXIS INCEXEL1912678.00
0.93%BIO TECHNE CORPTECH1134075.00
0.93%BIOMARIN PHARMACEUTICAL INCBMRN1394405.00
0.93%CHARLES RIVER LABORATORIES INTERNACRL358327.00
0.91%MADRIGAL PHARMACEUTICALS INCMDGL151927.00
0.87%AVIDITY BIOSCIENCES INCRNA1017580.00
0.87%ASCENDIS PHARMA ADR REPRESENTINGASND341304.00
0.87%ROIVANT SCIENCES LTDROIV3188107.00
0.76%REPLIGEN CORPRGEN392092.00
0.72%ARROWHEAD PHARMACEUTICALS INCARWR928210.00
0.71%HALOZYME THERAPEUTICS INCHALO856548.00
0.67%CYTOKINETICS INCCYTK883228.00
0.67%AXSOME THERAPEUTICS INCAXSM304544.00
0.66%PRAXIS PRECISION MEDICINES INCPRAX173189.00
0.63%BIONTECH SE ADRBNTX505639.00
0.60%KRYSTAL BIOTECH INCKRYS183341.00
0.59%TEMPUS AI INC CLASS ATEM748844.00
0.56%RHYTHM PHARMACEUTICALS INCRYTM459557.00
0.55%ABIVAX AMERICAN DEPOSITARY SHARESABVX387855.00
0.53%VAXCYTE INCPCVX935635.00
0.49%PTC THERAPEUTICS INCPTCT568857.00
0.45%BRUKER CORPBRKR760311.00
0.45%ALKERMESALKS1189271.00
0.44%NUVALENT INC CLASS ANUVL352228.00
0.43%PROTAGONIST THERAPEUTICS INCPTGX434749.00
0.43%CRINETICS PHARMACEUTICALS INCCRNX649612.00
0.43%COGENT BIOSCIENCES INCCOGT904341.00
0.42%STRUCTURE THERAPEUTICS ADR INCGPCR389434.00
0.42%CRISPR THERAPEUTICS AGCRSP672057.00
0.38%ACADIA PHARMACEUTICALS INCACAD1232219.00
0.38%AMICUS THERAPEUTICS INCFOLD2225802.00
0.35%KYMERA THERAPEUTICS INCKYMR438390.00
0.35%ADMA BIOLOGICS INCADMA1693793.00
0.34%APOGEE THERAPEUTICS INCAPGE350839.00
0.34%MIRUM PHARMACEUTICALS INCMIRM309431.00
0.31%SCHOLAR ROCK HOLDING CORPSRRK583225.00
0.30%GRAIL INCGRAL246641.00
0.29%TERNS PHARMACEUTICALS INCTERN662160.00
0.28%LEGEND BIOTECH ADR REP CORPLEGN1018232.00
0.28%VERACYTE INCVCYT568878.00
0.27%ARCELLX INCACLX318087.00
0.27%XENON PHARMACEUTICALS INCXENE550115.00
0.26%CARIS LIFE SCIENCES INCCAI848827.00
0.26%IDEAYA BIOSCIENCES INCIDYA616471.00
0.25%BEAM THERAPEUTICS INCBEAM673220.00
0.24%ARCUTIS BIOTHERAPEUTICS INCARQT791944.00
0.24%TARSUS PHARMACEUTICALS INCTARS287802.00
0.23%CG ONCOLOGY INCCGON359340.00
0.23%ADAPTIVE BIOTECHNOLOGIES CORPADPT1076929.00
0.22%10X GENOMICS INC CLASS ATXG826269.00
0.21%NEWAMSTERDAM PHARMA NVNAMS557664.00
0.21%TRAVERE THERAPEUTICS INCTVTX645609.00
0.21%TWIST BIOSCIENCE CORPTWST427510.00
0.20%DENALI THERAPEUTICS INCDNLI963399.00
0.20%SPYRE THERAPEUTICS INCSYRE498620.00
0.19%IMMUNOVANT INCIMVT625120.00
0.19%EDGEWISE THERAPEUTICS INCEWTX560293.00
0.19%VERA THERAPEUTICS INC CLASS AVERA357667.00
0.19%IMMUNITYBIO INCIBRX2443380.00
0.19%APELLIS PHARMACEUTICALS INCAPLS763096.00
0.18%SAREPTA THERAPEUTICS INCSRPT729248.00
0.18%ULTRAGENYX PHARMACEUTICAL INCRARE663082.00
0.17%DISC MEDICINE INCIRON197953.00
0.17%DYNE THERAPEUTICS INCDYN876068.00
0.16%WAVE LIFE SCIENCES LTDWVE992100.00
0.16%RECURSION PHARMACEUTICALS INC CLASRXRX3063154.00
0.16%DYNAVAX TECHNOLOGIES CORPDVAX856497.00
0.16%NURIX THERAPEUTICS INCNRIX732881.00
0.16%VERICEL CORPVCEL367227.00
0.16%MINERALYS THERAPEUTICS INCMLYS416353.00
0.15%AURINIA PHARMACEUTICALS INCAUPH866240.00
0.15%ZYMEWORKS INCZYME535427.00
0.15%SYNDAX PHARMACEUTICALS INCSNDX618368.00
0.15%OLEMA PHARMACEUTICALS INCOLMA464845.00
0.14%SUMMIT THERAPEUTICS INCSMMT755844.00
0.14%ARCUS BIOSCIENCES INCRCUS549724.00
0.14%CENTESSA PHARMACEUTICALS AMERICANCNTA524954.00
0.14%MANNKIND CORPMNKD2186790.00
0.14%ALUMIS INCALMS452776.00
0.14%DEFINIUM THERAPEUTICS INCDFTX699794.00
0.14%ZAI LABORATORY ADR REPRESENTING LTZLAB614799.00
0.14%ERASCA INCERAS1179710.00
0.13%AMYLYX PHARMACEUTICALS INCAMLX672618.00
0.13%KODIAK SCIENCES INCKOD415364.00
0.13%AGIOS PHARMACEUTICALS INCAGIO402709.00
0.13%FORTREA HOLDINGS INCFTRE674017.00
0.13%NUVATION BIO INC CLASS ANUVB1757620.00
0.12%INTELLIA THERAPEUTICS INCNTLA811814.00
0.12%BIOHAVEN LTDBHVN818870.00
0.12%ORUKA THERAPEUTICS INCORKA312290.00
0.12%STOKE THERAPEUTICS INCSTOK338557.00
0.11%BIOCRYST PHARMACEUTICALS INCBCRX1435230.00
0.11%NOVOCURE LTDNVCR734898.00
0.11%IMMUNOCORE HOLDINGS ADR PLCIMCR281023.00
0.11%UNIQURE NVQURE415773.00
0.11%GALAPAGOS ADR REPRESENTING NVGLPG278103.00
0.11%CORVUS PHARMACEUTICALS INCCRVS423152.00
0.11%NOVAVAX INCNVAX1095539.00
0.10%ANAPTYSBIO INCANAB190621.00
0.10%ENLIVEN THERAPEUTICS INCELVN319486.00
0.10%CASTLE BIOSCIENCES INCCSTL210061.00
0.10%MAZE THERAPEUTICS INCMAZE192722.00
0.10%MESOBLAST ADR REPRESENTING LTDMESO507483.00
0.10%MBX BIOSCIENCES INCMBX195633.00
0.10%TANGO THERAPEUTICS INCTNGX654516.00
0.09%GRIFOLS ADR REPRESENTING ONE NON-VGRFS926123.00
0.09%TYRA BIOSCIENCES INCTYRA269159.00
0.09%ATAIBECKLEY NVATAI2012784.00
0.09%MONTE ROSA THERAPEUTICS INCGLUE311779.00
0.09%TAYSHA GENE THERAPIES INCTSHA1641590.00
0.09%RAPT THERAPEUTICS INCRAPT132013.00
0.09%SIONNA THERAPEUTICS INCSION180771.00
0.08%THERAVANCE BIOPHARMA INCTBPH349009.00
0.08%RELAY THERAPEUTICS INCRLAY961631.00
0.08%ABCELLERA BIOLOGICS INCABCL1703460.00
0.08%STEVANATO GROUPSTVN366432.00
0.08%CAREDX INCCDNA342846.00
0.08%DAY ONE BIOPHARMACEUTICALS INCDAWN543270.00
0.08%VENTYX BIOSCIENCES INCVTYX473245.00
0.08%TREVI THERAPEUTICS INCTRVI618869.00
0.07%XENCOR INCXNCR495480.00
0.07%BLK CSH FND TREASURY SL AGENCYXTSLA6008072.00
0.07%IOVANCE BIOTHERAPEUTICS INCIOVA2460091.00
0.07%UPSTREAM BIO INCUPB189379.00
0.07%GERON CORPGERN4485785.00
0.07%SANA BIOTECHNOLOGY INCSANA1225374.00
0.07%ANNEXON INCANNX908310.00
0.07%UROGEN PHARMA LTDURGN285260.00
0.06%INHIBRX BIOSCIENCES INCINBX75158.00
0.06%RAPPORT THERAPEUTICS INCRAPP207482.00
0.06%SEPTERNA INCSEPN198490.00
0.06%KURA ONCOLOGY INCKURA623091.00
0.06%IRONWOOD PHARMA INC CLASS AIRWD1157379.00
0.06%JANUX THERAPEUTICS INCJANX397360.00
0.06%GH RESEARCH PLCGHRS331268.00
0.06%PHARVARIS N V NVPHVS194188.00
0.06%CYTOMX THERAPEUTICS INCCTMX944482.00
0.06%ARVINAS INCARVN408372.00
0.06%PRECIGEN INCPGEN1102679.00
0.06%REGENXBIO INCRGNX340738.00
0.06%RIGEL PHARMACEUTICALS INCRIGL130520.00
0.06%PACIFIC BIOSCIENCES OF CALIFORNIAPACB2000564.00
0.06%ARBUTUS BIOPHARMA CORPABUS1109520.00
0.05%ARS PHARMACEUTICALS INCSPRY441148.00
0.05%ORIC PHARMACEUTICALS INCORIC396198.00
0.05%ASTRIA THERAPEUTICS INCATXS369017.00
0.05%FULCRUM THERAPEUTICS INCFULC431358.00
0.05%CYTEK BIOSCIENCES INCCTKB856091.00
0.05%SAVARA INCSVRA754795.00
0.05%PHATHOM PHARMACEUTICALS INCPHAT305207.00
0.05%ARRIVENT BIOPHARMA INCAVBP192310.00
0.05%KALVISTA PHARMACEUTICALS INCKALV279092.00
0.05%VIR BIOTECHNOLOGY INCVIR691056.00
0.05%EMERGENT BIOSOLUTIONS INCEBS372612.00
0.05%STANDARD BIOTOOLS INCLAB2721986.00
0.05%FULGENT GENETICS INCFLGT147536.00
0.05%ALVOTECH SAALVO806422.00
0.05%LENZ THERAPEUTICS INCLENZ205821.00
0.05%BICARA THERAPEUTICS INCBCAX236856.00
0.05%COMPASS PATHWAYS ADR PLCCMPS532040.00
0.05%KEROS THERAPEUTICS INCKROS209880.00
0.04%OPKO HEALTH INCOPK2893827.00
0.04%MYRIAD GENETICS INCMYGN655116.00
0.04%ZEVRA THERAPEUTICS INCZVRA412478.00
0.04%REPLIMUNE GROUP INCREPL526599.00
0.04%PERSONALIS INCPSNL392105.00
0.04%BRIDGEBIO ONCOLOGY THERAPEUTICS INBBOT318944.00
0.04%GOSSAMER BIO INCGOSS1365134.00
0.04%BIOAGE LABS INCBIOA166236.00
0.04%ALTO NEUROSCIENCE INCANRO202234.00
0.04%ZENAS BIOPHARMA INCZBIO162003.00
0.04%ALTIMMUNE INCALT764535.00
0.04%LEXEO THERAPEUTICS INCLXEO445307.00
0.04%ANAVEX LIFE SCIENCES CORPAVXL637791.00
0.04%CULLINAN THERAPEUTICS INCCGEM291275.00
0.04%MEIRAGTX HOLDINGS PLCMGTX430521.00
0.04%VANDA PHARMACEUTICALS INCVNDA406873.00
0.04%ACLARIS THERAPEUTICS INCACRS683324.00
0.04%PROTHENA PLCPRTA320520.00
0.03%MARAVAI LIFESCIENCES HOLDINGS INCMRVI780355.00
0.03%ABSCI CORPABSI1002466.00
0.03%4D MOLECULAR THERAPEUTICS INCFDMT375820.00
0.03%GINKGO BIOWORKS HOLDINGS INC CLASSDNA311849.00
0.03%PRIME MEDICINE INCPRME692986.00
0.03%ROCKET PHARMACEUTICALS INCRCKT735622.00
0.03%LINEAGE CELL THERAPEUTICS INCLCTX1606669.00
0.03%PEPGEN INCPEPG434979.00
0.03%ADC THERAPEUTICS SAADCT733535.00
0.03%ENANTA PHARMACEUTICALS INCENTA202293.00
0.03%SOLID BIOSCIENCES INCSLDB435219.00
0.03%IMMUTEP ADS REPRESENTING LTDIMMP831951.00
0.03%CONTINEUM THERAPEUTICS INC CLASS ACTNM184923.00
0.03%DESIGN THERAPEUTICS INCDSGN230944.00
0.03%NOVABRIDGE BIOSCIENCES ADRNBP554665.00
0.02%QUANTERIX CORPQTRX278113.00
0.02%AUTOLUS THERAPEUTICS ADR PLCAUTL1358779.00
0.02%KYVERNA THERAPEUTICS INCKYTX209537.00
0.02%ALLOGENE THERAPEUTICS INCALLO1177729.00
0.02%CANDEL THERAPEUTICS INCCADL303284.00
0.02%AURA BIOSCIENCES INCAURA347643.00
0.02%NEUROGENE INCNGNE97340.00
0.02%IMMUNEERING CORP CLASS AIMRX352862.00
0.02%BICYCLE THERAPEUTICS ADR PLCBCYC250959.00
0.02%ENTRADA THERAPEUTICS INCTRDA155813.00
0.02%ATEA PHARMACEUTICALS INCAVIR455662.00
0.02%OMNIAB INCOABI805504.00
0.02%AC IMMUNE SAACIU455885.00
0.02%QUANTUM SI INC CLASS AQSI1257878.00
0.02%TECTONIC THERAPEUTIC INCTECX78022.00
0.02%CELLECTIS ADR REPRESENTING SACLLS349404.00
0.02%EDITAS MEDICINE INCEDIT716995.00
0.02%AARDVARK THERAPEUTICS INCAARD92193.00
0.02%CABALETTA BIO INCCABA623688.00
0.02%ARCTURUS THERAPEUTICS HOLDINGS INCARCT192205.00
0.01%C4 THERAPEUTICS INCCCCC573263.00
0.01%VOYAGER THERAPEUTICS INCVYGR338277.00
0.01%LYELL IMMUNOPHARMA INCLYEL51868.00
0.01%SAGIMET BIOSCIENCES INC SERIES ASGMT194506.00
0.01%HUMACYTE INCHUMA1167212.00
0.01%PERSPECTIVE THERAPEUTICS INCCATX462305.00
0.01%LARIMAR THERAPEUTICS INCLRMR344431.00
0.01%FOGHORN THERAPEUTICS INCFHTX197551.00
0.01%TENAYA THERAPEUTICS INCTNYA1452560.00
0.01%CODEXIS INCCDXS622804.00
0.01%CARIBOU BIOSCIENCES INCCRBU611170.00
0.01%BLACK DIAMOND THERAPEUTICS INCBDTX330560.00
0.01%NEUMORA THERAPEUTICS INCNMRA402382.00
0.01%JYONG BIOTECH LTDMENS212304.00
0.01%PYXIS ONCOLOGY INCPYXS354823.00
0.00%CASH COLLATERAL USD SGAFTSGAFT335000.00
0.00%AKERO THERAPEUTICS CVRAKE515954.00
0.00%ALPHA TEKNOVA INCTKNO81877.00
0.00%SILENCE THERAPEUTICS ADR REPRESENTSLN43188.00
0.00%CHINOOK THERAPEUTICS INCADRO320962.00
0.00%THIRD HARMONIC BIO INCTHRD134478.00
0.00%CARGO THERAPEUTICS INCCRGX198104.00
0.00%RUSSELL 2000 EMINI CME MAR 26RTYH616.00
0.00%E-MINI HEALTH CARE SECTOR MAR 26IXCH621.00
-0.01%USD CASHUSD-854417.00

What is the market capitalization of a company?

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