FundWatcher

Compare fund portfolios

See how two funds' portfolios overlap. Enter two tickers:

vs

IBB vs FBT

Shared holdings
28
IBB covered by FBT
42.48%
FBT covered by IBB
42.48%

Coverage = share of one portfolio's weight reproduced by the other (overlapping positions, min weight). Top 50 positions per side shown; ● = held by both — hover a shared position to highlight it in both columns.

IBB (March 31, 2026)

SecurityWeight
BlackRock Cash Funds: Institutional, SL Agency Shares8.81%
GILEAD SCIENCES INC7.06%●
AMGEN INC6.84%●
VERTEX PHARMACEUTICALS INC6.79%●
REGENERON PHARMACEUTICALS INC6.58%●
ALNYLAM PHARMACEUTICALS INC3.64%●
INSMED INC2.91%
ARGENX SE SPONSORED ADR2.80%●
BIOGEN INC2.25%●
NATERA INC2.20%●
UNITED THERAPEUTICS CORP DEL2.10%●
BEONE MEDICINES LTD ADR1.76%●
INCYTE CORP1.55%●
MODERNA INC1.54%●
ILLUMINA INC1.53%●
REVOLUTION MEDICINES INC1.40%
ROIVANT SCIENCES LTD1.13%
NEUROCRINE BIOSCIENCES INC1.08%●
GENMAB A/S -SP ADR DEPOSITARY RECEIPT1.07%●
BRIDGEBIO PHARMA INC1.03%
IONIS PHARMACEUTICALS INC1.02%
MEDPACE HOLDINGS INC0.92%
MADRIGAL PHARMACEUTICALS INC0.91%
EXELIXIS INC0.90%●
BIOMARIN PHARMACEUTICAL INC0.90%●
Ascendis Pharma A/S0.87%
PRAXIS PRECISION MEDICINES INC0.71%
CHARLES RIVER LABS INTL INC0.70%
ARROWHEAD PHARMACEUTICALS INC0.69%
VAXCYTE INC0.68%
BIO-TECHNE CORP0.68%●
CYTOKINETICS INC0.66%
HALOZYME THERAPEUTICS INC0.63%●
AXSOME THERAPEUTICS INC0.61%●
BIONTECH SE ADR0.60%●
KRYSTAL BIOTECH INC0.55%●
PROTAGONIST THERAPEUTICS INC0.53%
REPLIGEN CORP0.52%●
KYMERA THERAPEUTICS INC0.49%
ALKERMES PLC0.48%●
RHYTHM PHARMACEUTICALS INC0.46%
Abivax SA SPONSORED ADS0.46%
PTC THERAPEUTICS INC0.45%
COGENT BIOSCIENCES INC0.44%
ARCELLX INC0.43%
TERNS PHARMACEUTICALS INC0.42%
NUVALENT INC-A0.41%
MIRUM PHARMACEUTICALS INC0.41%
TEMPUS AI INC-A0.39%
XENON PHARMACEUTICALS INC0.39%

FBT (March 31, 2026)

SecurityWeight
MODERNA INC5.26%●
UNITED THERAPEUTICS CORP DEL4.36%●
ALKERMES PLC4.23%●
GILEAD SCIENCES INC4.09%●
AXSOME THERAPEUTICS INC3.88%●
AMGEN INC3.83%●
CORCEPT THERAPEUTICS INC3.82%
KRYSTAL BIOTECH INC3.51%●
BIOGEN INC3.47%●
EXELIXIS INC3.46%●
NEUROCRINE BIOSCIENCES INC3.44%●
REGENERON PHARMACEUTICALS INC3.44%●
VERTEX PHARMACEUTICALS INC3.42%●
BIOMARIN PHARMACEUTICAL INC3.40%●
ARGENX SE SPONSORED ADR3.29%●
SAREPTA THERAPEUTICS INC3.24%●
HALOZYME THERAPEUTICS INC3.17%●
BIONTECH SE ADR3.16%●
INCYTE CORP3.13%●
BEONE MEDICINES LTD ADR3.12%●
ILLUMINA INC3.10%●
NATERA INC3.03%●
ACADIA PHARMACEUTICALS INC2.95%●
ALNYLAM PHARMACEUTICALS INC2.95%●
BIO-TECHNE CORP2.82%●
GENMAB A/S -SP ADR DEPOSITARY RECEIPT2.78%●
VERACYTE INC2.72%●
REPLIGEN CORP2.51%●
BRUKER CORP2.35%●
NEOGENOMICS INC2.00%
DREY-GVT CSH-I0.06%
DAIWA CAPITAL MARKETS AMERICA INC0.01%

Machine-readable: JSON · Markdown. Programmatic access via the agent surface.