XBI holdings

All 166 positions of State Street SPDR S&P Biotech ETF.

Positions
166
Top 10 weight
16.9%
Effective holdings
92.6
1 / sum of squared weights
In stocks
99.9%
In bonds
0.0%
Outside the US
0.0%

Asset mix

  • Equity99.9%
  • Other0.1%
  • Cash0.0%

Sectors

100% of stocks classified
  • Health Care99.2%
  • Financials0.7%

Countries

  • United States96.3%

Holdings

#HoldingTypeWeightValueShares / parCountry
1MRNAModerna, Inc. Common StockEquity2.20%—1,119,330US
2TWSTTwist Bioscience Corporation Common StockEquity1.84%—1,209,302US
3NTRANatera, Inc. Common StockEquity1.79%—459,561US
4ABBVABBVIE INC.Equity1.65%—605,006US
5UTHRUnited Therapeutics CorpEquity1.59%—299,526US
6AMGNAmgen IncEquity1.58%—387,970US
7BIIBBiogen Inc. Common StockEquity1.57%—720,304US
8HALOHalozyme Therapeutics, Inc.Equity1.55%—1,413,416US
9IOVAIovance Biotherapeutics, Inc. Common StockEquity1.54%—11,557,174US
10EXELExelixis IncEquity1.53%—2,602,250US
11GILDGilead Sciences IncEquity1.53%—1,042,189US
12TGTXTG Therapeutics, Inc.Equity1.48%—2,777,508US
13VRTXVertex Pharmaceuticals IncEquity1.46%—291,305US
14PTGXProtagonist Therapeutics, IncEquity1.46%—1,041,100US
15KRYSKrystal Biotech, Inc. Common StockEquity1.43%—436,094US
16CRSPCRISPR Therapeutics AGEquity1.41%—2,790,326US
17PTCTPTC Therapeutics, Inc.Equity1.40%—2,246,451US
18SYRESpyre Therapeutics, Inc. Common StockEquity1.39%—1,746,067US
19REGNRegeneron Pharmaceuticals IncEquity1.39%—187,934US
20NBIXNeurocrine Biosciences IncEquity1.38%—978,400US
21RVMDRevolution Medicines, Inc. Common StockEquity1.37%—730,955US
22INCYIncyte Genomics IncEquity1.36%—1,204,542US
23ALKSAlkermes Inc. plcEquity1.34%—3,343,401
24GRALGRAIL, Inc. Common StockEquity1.33%—1,006,118US
25ERASErasca, Inc. Common StockEquity1.33%—8,609,322US
26PCVXVaxcyte, Inc. Common StockEquity1.33%—2,044,538US
27MDGLMadrigal Pharmaceuticals, Inc. Common StockEquity1.32%—277,672US
28ALNYAlnylam Pharmaceuticals, Inc.Equity1.32%—588,313US
29BBIOBridgeBio Pharma, Inc. Common StockEquity1.30%—1,995,153US
30BMRNBioMarin Pharmaceuticals IncEquity1.29%—2,356,591US
31ORKAOruka Therapeutics, Inc. Common StockEquity1.28%—1,658,906US
32CYTKCytokinetics Inc.Equity1.27%—2,048,252US
33ROIVRoivant Sciences Ltd. Common SharesEquity1.24%—3,630,551
34KODKodiak Sciences Inc Common StockEquity1.24%—1,316,921US
35COGTCogent Biosciences, Inc. Common StockEquity1.20%—4,007,083US
36KYMRKymera Therapeutics, Inc. Common StockEquity1.20%—1,099,219US
37TVTXTravere Therapeutics, Inc. Common StockEquity1.19%—2,292,214US
38IBRXImmunityBio, Inc. Common StockEquity1.19%—12,020,746US
39INSMInsmed, Inc.Equity1.18%—1,178,511US
40IONSIonis Pharmaceuticals, Inc. Common StockEquity1.17%—2,709,662US
41DNTHDianthus Therapeutics, Inc. Common StockEquity1.17%—1,418,082US
42PRAXPraxis Precision Medicines, Inc. Common StockEquity1.16%—439,593US
43ARWRArrowhead Research CorporationEquity1.11%—1,837,031US
44RYTMRhythm Pharmaceuticals, Inc. Common StockEquity1.09%—1,216,593US
45VCYTVeracyte, Inc.Equity1.04%—2,395,555US
46MIRMMirum Pharmaceuticals, Inc. Common StockEquity1.03%—1,262,470US
47CGONCG Oncology, Inc. Common stockEquity1.00%—1,583,635US
48VKTXViking Therapeutics, IncEquity0.98%—3,538,660US
49TNGXTango Therapeutics, Inc.Equity0.94%—4,175,923US
50RLAYRelay Therapeutics, Inc. Common StockEquity0.87%—4,995,509US
51BEAMBeam Therapeutics Inc. Common StockEquity0.87%—3,535,069US
52CDNACareDx, Inc.Equity0.84%—1,357,309US
53CELCCelcuity Inc. Common StockEquity0.83%—1,229,758US
54RAREUltragenyx Pharmaceutical Inc.Equity0.80%—5,235,072US
55SRRKScholar Rock Holding Corporation Common StockEquity0.79%—1,872,897US
56ARQTArcutis Biotherapeutics, Inc. Common StockEquity0.76%—3,102,705US
57DYNDyne Therapeutics, Inc. Common StockEquity0.73%—4,468,487US
58PURRHyperliquid Strategies Inc Common StockEquity0.70%—6,155,850US
59RXRXRecursion Pharmaceuticals, Inc. Class A Common StockEquity0.67%—17,064,397US
60SLSSELLAS Life Sciences Group, Inc. Common StockEquity0.65%—5,820,692US
61IMVTImmunovant, Inc. Common StockEquity0.65%—2,164,744US
62SMMTSummit Therapeutics Inc. Common StockEquity0.64%—3,734,403US
63IDYAIDEAYA Biosciences, Inc. Common StockEquity0.59%—1,629,912US
64BCRXBioCryst Pharmaceuticals IncEquity0.59%—7,079,223US
65DNLIDenali Therapeutics Inc. Common StockEquity0.59%—3,138,756US
66VERAVera Therapeutics, Inc. Class A Common StockEquity0.56%—1,884,523US
67AGIOAgios Pharmaceuticals, Inc.Equity0.56%—1,750,069US
68NTLAIntellia Therapeutics, IncEquity0.55%—4,403,402US
69SRPTSarepta Therapeutics,, Inc. Common StockEquity0.55%—3,040,576US
70NVAXNovavax IncEquity0.52%—4,729,369US
71RCUSArcus Biosciences, Inc.Equity0.51%—2,127,537US
72NRIXNurix Therapeutics, Inc. Common stockEquity0.50%—2,252,432US
73ACADAcadia Pharmaceuticals Inc.Equity0.50%—2,540,023US
74PVLAPalvella Therapeutics, Inc. Common StockEquity0.49%—372,183US
75CLDXCelldex Therapeutics, IncEquity0.48%—1,646,945US
76ADMAADMA Biologics, Inc.Equity0.48%—4,657,955US
77QUREuniQure N.V.Equity0.47%—2,086,998
78VRDNViridian Therapeutics, Inc. Common StockEquity0.47%—2,563,621US
79ABSIAbsci Corporation Common StockEquity0.45%—5,081,515US
80VCELVericel CorporationEquity0.45%—1,133,599US
81BHVNBiohaven Ltd.Equity0.45%—3,800,345
82IRONDisc Medicine, Inc. Common StockEquity0.45%—739,422US
83PGENPrecigen, Inc. Common StockEquity0.44%—5,828,914US
84SNDXSyndax Pharmaceuticals, Inc.Equity0.44%—2,616,846US
85NKTRNektar TherapeuticsEquity0.41%—1,001,849US
86IMNMImmunome, Inc.Equity0.39%—2,004,547US
87MLYSMineralys Therapeutics, Inc. Common StockEquity0.34%—1,508,804US
88REPLReplimune Group, Inc.Equity0.33%—2,555,905US
89XNCRXencor, Inc.Equity0.33%—1,339,548US
90STOKStoke Therapeutics, Inc. Common StockEquity0.32%—1,347,422US
91INBXInhibrx Biosciences, Inc. Common StockEquity0.31%—333,669US
92ANABAnaptysBio, Inc. Common StockEquity0.30%—657,829US
93ORICOric Pharmaceuticals, Inc. Common StockEquity0.30%—2,483,651US
94VIRVir Biotechnology, Inc. Common StockEquity0.29%—2,615,670US
95TRAXFirst Tracks Biotherapeutics, Inc. Ordinary SharesEquity0.29%—898,024US
96ZBIOZenas BioPharma, Inc. Common StockEquity0.28%—1,065,994US
97KURAKura Oncology, Inc.Equity0.27%—2,610,822US
98MNKDMannkind CorporationEquity0.25%—7,361,661US
99JBIOJade Biosciences, Inc. Common StockEquity0.25%—1,761,500US
100ARDXArdelyx, Inc.Equity0.24%—7,471,288US
101ANNXAnnexon, Inc. Common StockEquity0.24%—6,007,321US
102RIGLRigel Pharmaceuticals Inc. (New)Equity0.24%—486,725US
103TYRATyra Biosciences, Inc. Common StockEquity0.24%—1,186,379US
104TSHATaysha Gene Therapies, Inc. Common StockEquity0.23%—5,279,170US
105GERNGeron CorpEquity0.23%—18,548,930US
106GLUEMonte Rosa Therapeutics, Inc. Common StockEquity0.22%—2,163,017US
107CADLCandel Therapeutics, Inc. Common StockEquity0.22%—2,239,097US
108JANXJanux Therapeutics, Inc. Common StockEquity0.22%—1,165,349US
109VORVor Biopharma Inc. Common StockEquity0.21%—1,121,446US
110AVTXAvalo Therapeutics, Inc. Common StockEquity0.20%—1,510,761US
111IMMXImmix Biopharma, Inc. Common StockEquity0.20%—2,113,641US
112CGEMCullinan Therapeutics, Inc. Common StockEquity0.19%—1,259,806US
113BCAXBicara Therapeutics Inc. Common StockEquity0.19%—1,122,007US
114CRVSCorvus Pharmaceuticals, Inc.Equity0.19%—1,861,104US
115VSTMVerastem, Inc.Equity0.19%—2,308,557US
116OLMAOlema Pharmaceuticals, Inc. Common StockEquity0.17%—2,203,691US
117RGNXREGENXBIO Inc.Equity0.16%—2,035,249US
118COAGHemab Therapeutics Holdings, Inc. Common StockEquity0.16%—528,916US
119SVRASavara Inc.Equity0.16%—3,270,519US
120AVBPArriVent BioPharma, Inc. Common StockEquity0.16%—943,681US
121SANASana Biotechnology, Inc. Common StockEquity0.16%—5,611,167US
122ACHVAchieve Life Sciences, Inc.Equity0.15%—2,152,834US
123FDMT4D Molecular Therapeutics, Inc. Common StockEquity0.15%—1,206,956US
124DMRADamora Therapeutics, Inc. Ordinary SharesEquity0.15%—743,457US
125CAPRCapricor Therapeutics IncEquity0.15%—1,828,162US
126ALLOAllogene Therapeutics, Inc. Common StockEquity0.13%—9,510,630US
127PRMEPrime Medicine, Inc. Common StockEquity0.13%—3,716,932US
128IRWDIronwood Pharmaceuticals, Inc. - Class AEquity0.13%—3,411,549US
129CTMXCytomX Therapeutics, Inc.Equity0.13%—5,215,402US
130KLRAKailera Therapeutics, Inc. Common StockEquity0.13%—1,255,239US
131EDITEditas Medicine, Inc. Common StockEquity0.12%—4,344,930US
132SLDBSolid Biosciences Inc. Common StockEquity0.12%—1,797,751US
133MYGNMyriad Genetics IncEquity0.12%—2,910,110US
134CLYMClimb Bio, Inc. Common StockEquity0.12%—1,105,587US
135ABUSArbutus Biopharma Corporation Common StockEquity0.12%—2,869,130
136ALTAltimmune, Inc. Common StockEquity0.12%—4,572,105US
137MNPRMonopar Therapeutics Inc. Common StockEquity0.12%—141,026US
138SGMTSagimet Biosciences Inc. Series A Common StockEquity0.12%—1,297,732US
139EBSEmergent Biosolutions, Inc.Equity0.11%—1,659,748US
140DSGNDesign Therapeutics, Inc. Common StockEquity0.11%—960,119US
141OCGNOcugen, Inc. Common StockEquity0.11%—11,125,705US
142STTKShattuck Labs, Inc. Common StockEquity0.11%—1,882,408US
143SPRYARS Pharmaceuticals, Inc. Common StockEquity0.10%—2,235,167US
144CABACabaletta Bio, Inc. Common StockEquity0.10%—5,079,179US
145AKTSAktis Oncology, Inc. Common stockEquity0.09%—523,832US
146MDXGMiMedx Group, IncEquity0.09%—1,848,590US
147VNDAVanda Pharmaceuticals Inc.Equity0.08%—1,837,598US
148PRTAProthena Corporation plc Ordinary SharesEquity0.08%—928,875
149CONTRA METSERA INCOther0.07%—1,530,714US
150NGNENeurogene, Inc. Common StockEquity0.07%—274,325US
151ASMBAssembly Biosciences, IncEquity0.07%—309,972US
152OVIDOvid Therapeutics Inc. Common StockEquity0.07%—2,851,399US
153AURAAura Biosciences, Inc. Common StockEquity0.06%—963,761US
154FTHFaeth Therapeutics, Inc. Common StockEquity0.06%—220,244US
155LXEOLexeo Therapeutics, Inc. Common StockEquity0.05%—1,625,226US
156CMPXCompass Therapeutics, Inc. Common StockEquity0.05%—4,939,320US
157CBIOCrescent Biopharma, Inc. Common StockEquity0.05%—341,576US
158SSI US GOV MONEY MARKET CLASSCash0.05%—4,639,423
159BBOTBridgeBio Oncology Therapeutics, Inc. Common StockEquity0.02%—676,447US
160CONTRA AKERO THERAPEUTOther0.01%—2,033,975US
161CONTRA INHIBRX INCOther0.01%—1,645,973US
162CONTRA MIRATI THERAPEUOther0.01%—1,369,552US
163CONTRA VERVE THERAPEUTOther0.01%—900,273US
164CONTRA BLUEPRINT MEDICOther0.00%—756,469
165OMNIAB INC 12.5 EARNOUTOther0.00%—161,959
166OMNIAB INC 15.00 EARNOUTOther0.00%—161,959

Find which other funds hold a stock by opening it and choosing "ETFs holding".

Position changes between reports

ActionHoldingWeight beforeWeight afterShares vs flowsBetween reports
ExitAPLSApellis Pharmaceuticals Inc1.83%——Mar 31, 2026 → Jun 30, 2026 SEC
ExitFOLDAmicus Therapeutics Inc1.15%——Mar 31, 2026 → Jun 30, 2026 SEC
ExitACLXArcellx Inc1.14%——Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseSLSSELLAS Life Sciences Group Inc0.27%1.19%+51.3%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseORKAOruka Therapeutics Inc0.50%1.38%+67.5%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseRLAYRelay Therapeutics Inc0.38%1.10%+82.5%Mar 31, 2026 → Jun 30, 2026 SEC
ExitSLNOSoleno Therapeutics Inc0.67%——Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseuniQure NV0.37%1.03%+15.7%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseDNTHDianthus Therapeutics Inc0.66%1.18%+82.1%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseMRNAModerna Inc1.03%1.41%+17.2%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseARQTArcutis Biotherapeutics Inc1.09%0.71%−30.5%Mar 31, 2026 → Jun 30, 2026 SEC
New positionAVTXAvalo Therapeutics Inc—0.35%—Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseAlkermes PLC1.45%1.11%−39.0%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseMDGLMadrigal Pharmaceuticals Inc1.38%1.06%−11.8%Mar 31, 2026 → Jun 30, 2026 SEC
ExitDAWNDay One Biopharmaceuticals Inc0.32%——Mar 31, 2026 → Jun 30, 2026 SEC
New positionJBIOJade Biosciences Inc—0.32%—Mar 31, 2026 → Jun 30, 2026 SEC
IncreasePURRHyperliquid Strategies Inc0.17%0.46%+111.7%Mar 31, 2026 → Jun 30, 2026 SEC
ExitKALVKalVista Pharmaceuticals Inc0.29%——Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseTNGXTango Therapeutics Inc0.56%0.84%+20.2%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseIMNMImmunome Inc0.86%0.59%−16.4%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseVKTXViking Therapeutics Inc1.04%1.30%+24.1%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseARDXArdelyx Inc0.62%0.35%−20.7%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseINSMInsmed Inc1.34%1.08%+46.2%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseNTLAIntellia Therapeutics Inc0.65%0.91%+25.7%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseTGTXTG Therapeutics Inc1.35%1.09%−42.0%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseTWSTTwist Bioscience Corp1.16%1.41%−33.4%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseERASErasca Inc1.03%1.27%+29.0%Mar 31, 2026 → Jun 30, 2026 SEC
New positionSLDBSolid Biosciences Inc—0.24%—Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseNUVLNuvalent Inc1.17%0.93%−21.9%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseSMMTSummit Therapeutics Inc1.24%1.01%+25.6%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseIRONDisc Medicine Inc0.87%0.65%−22.4%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseEXELExelixis Inc1.17%0.96%−23.5%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseAPGEApogee Therapeutics Inc1.28%1.49%−13.0%Mar 31, 2026 → Jun 30, 2026 SEC
New positionIMMXImmix Biopharma Inc—0.20%—Mar 31, 2026 → Jun 30, 2026 SEC
New positionCADLCandel Therapeutics Inc—0.19%—Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseNBIXNeurocrine Biosciences Inc1.16%0.97%−22.4%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseAGIOAgios Pharmaceuticals Inc0.88%0.69%−14.8%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseGRALGRAIL Inc0.72%0.91%+12.2%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseCLDXCelldex Therapeutics Inc0.52%0.70%+35.9%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseIOVAIovance Biotherapeutics Inc0.38%0.56%+46.0%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseREGNRegeneron Pharmaceuticals Inc1.14%0.96%+24.0%Mar 31, 2026 → Jun 30, 2026 SEC
New positionTRAXFirst Tracks Biotherapeutics Inc—0.17%—Mar 31, 2026 → Jun 30, 2026 SEC
DecreasePTGXProtagonist Therapeutics Inc1.24%1.07%−12.1%Mar 31, 2026 → Jun 30, 2026 SEC
New positionMPLTMapLight Therapeutics Inc—0.17%—Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseVIRVir Biotechnology Inc0.30%0.47%+60.4%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseARWRArrowhead Pharmaceuticals Inc1.23%1.07%−20.9%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseCGEMCullinan Therapeutics Inc0.25%0.40%+49.1%Mar 31, 2026 → Jun 30, 2026 SEC
New positionCABACabaletta Bio Inc—0.15%—Mar 31, 2026 → Jun 30, 2026 SEC
DecreasePTCTPTC Therapeutics Inc1.18%1.03%−13.7%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseNVAXNovavax Inc0.51%0.66%+32.2%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseSRPTSarepta Therapeutics Inc0.89%0.75%+19.6%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseDMRADamora Therapeutics Inc0.03%0.17%+524.9%Mar 31, 2026 → Jun 30, 2026 SEC
DecreaseINCYIncyte Corp1.13%1.00%−13.5%Mar 31, 2026 → Jun 30, 2026 SEC
ExitRCKTRocket Pharmaceuticals Inc0.13%——Mar 31, 2026 → Jun 30, 2026 SEC
New positionOVIDOvid therapeutics Inc—0.12%—Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseGILDGilead Sciences Inc1.09%0.96%+15.8%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseCMPXCompass Therapeutics Inc0.26%0.14%+52.2%Mar 31, 2026 → Jun 30, 2026 SEC
IncreasePVLAPalvella Therapeutics Inc0.46%0.58%+22.2%Mar 31, 2026 → Jun 30, 2026 SEC
IncreaseBCAXBicara Therapeutics Inc0.19%0.30%+28.1%Mar 31, 2026 → Jun 30, 2026 SEC
ExitAKBAAkebia Therapeutics Inc0.11%——Mar 31, 2026 → Jun 30, 2026 SEC

Share-count changes are measured after removing what creations and redemptions explain.

Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.