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ETF Holdings Overlap

How much do two funds actually share? Weight-based overlap, shared positions, and what is unique to each side.

VOO/QQQVOO/SPYVTI/VOOSCHD/JEPIQQQ/XLKVXUS/VEAIWM/VTIVWO/IEMG

Shared holdings: 208 · BIB has 246 tickered positions · IBB has 234

Overlap = sum of the smaller of the two weights for every shared holding. Holdings as of Oct 11, 2026. Positions without a clean ticker (bonds, cash, derivatives) are excluded from the match.

Largest Shared Positions

HoldingBIBIBBDifference
GILD GILEAD SCIENCES INC 5.20%8.37% -3.17%
AMGN AMGEN INC 4.86%7.89% -3.03%
VRTX VERTEX PHARMACEUTICALS INC 4.72%7.69% -2.98%
MRNA MODERNA INC 3.70%5.30% -1.60%
REGN REGENERON PHARMACEUTICALS 3.11%5.40% -2.29%
ILMN ILLUMINA INC 1.73%2.94% -1.20%
RVMD REVOLUTION MEDICINES INC 1.68%2.67% -1.00%
BIIB BIOGEN INC 1.37%2.36% -0.99%
ALNY ALNYLAM PHARMACEUTICALS… 1.28%2.21% -0.92%
ROIV ROIVANT SCIENCES LTD 1.06%1.32% -0.27%
UTHR UNITED THERAPEUTICS CORP 0.97%1.63% -0.66%
INCY INCYTE CORP 0.94%1.67% -0.73%
ARGX ARGENX SE - ADR 0.93%3.35% -2.42%
INSM INSMED INC 0.91%1.59% -0.69%
MEDP MEDPACE HOLDINGS INC 0.70%1.00% -0.29%
EXEL EXELIXIS INC 0.61%1.04% -0.43%
NBIX NEUROCRINE BIOSCIENCES INC 0.60%1.05% -0.45%
ASND ASCENDIS PHARMA A/S 0.58%1.01% -0.43%
BBIO BRIDGEBIO PHARMA INC 0.54%0.84% -0.30%
ONC BEONE MEDICINES LTD-ADR 0.52%2.17% -1.65%

Biggest Weighting Differences

HoldingBIBIBBΔ
GILD 5.20%8.37% -3.17%
AMGN 4.86%7.89% -3.03%
VRTX 4.72%7.69% -2.98%
ARGX 0.93%3.35% -2.42%
REGN 3.11%5.40% -2.29%
ONC 0.52%2.17% -1.65%
MRNA 3.70%5.30% -1.60%
GMAB 0.15%1.47% -1.32%
ILMN 1.73%2.94% -1.20%
RVMD 1.68%2.67% -1.00%
BIIB 1.37%2.36% -0.99%
ALNY 1.28%2.21% -0.92%

Only in BIB

IQMM PROSHARES GENIUS MNY MKT ETF 18.26%
RPRX ROYALTY PHARMA PLC- CL A 1.04%
GH GUARDANT HEALTH INC 0.93%
VTRS VIATRIS INC 0.84%
JAZZ JAZZ PHARMACEUTICALS PLC 0.58%
SNY SANOFI-ADR 0.36%
AMRX AMNEAL PHARMACEUTICALS INC 0.29%
LGND LIGAND PHARMACEUTICALS 0.25%
INDV INDIVIOR PHARMACEUTICALS INC 0.17%
KNSA KINIKSA PHARMACEUTICALS INTE 0.16%
SUPN SUPERNUS PHARMACEUTICALS INC 0.10%
HRMY HARMONY BIOSCIENCES HOLDINGS 0.10%
XERS XERIS BIOPHARMA HOLDINGS INC 0.08%
ANIP ANI PHARMACEUTICALS INC 0.07%
OCUL OCULAR THERAPEUTIX INC 0.07%

Only in IBB

NTRA NATERA 3.88%
CRL CHARLES RIVER LABORATORIES… 1.04%
TECH BIO TECHNE 0.83%
RGEN REPLIGEN 0.64%
BRKR BRUKER 0.47%
CDNA CAREDX 0.22%
RCUS ARCUS BIOSCIENCES 0.15%
NAMS NEWAMSTERDAM PHARMA 0.12%
BHVN BIOHAVEN 0.11%
NUVB NUVATION BIO CLASS A 0.09%
STVN STEVANATO GROUP 0.07%
ANRO ALTO NEUROSCIENCE INC 0.06%
CTKB CYTEK BIOSCIENCES 0.05%
DNA GINKGO BIOWORKS HOLDINGS… 0.04%
OPK OPKO HEALTH 0.04%

Research tool only: overlap is one lens on similarity, not a judgment of which fund is better.

Commodity

Commodities (broad)GoldOil & GasSilver

Digital Assets

CryptocurrencyBitcoin

Fixed Income

Bonds (all)Government BondsTreasury BondsCorporate BondsHigh Yield BondsMunicipal BondsInternational BondsTIPS / Inflation-Protected

Income

DividendCovered Call / Option IncomePreferred Stocks

Region

InternationalGlobalDeveloped MarketsEmerging MarketsInternational Small CapFrontier Markets

Sector & Theme

FinancialsTechnologyEnergyReal Estate / REITsHealthcareIndustrialsMaterialsInfrastructureClean Energy

Strategy

Buffer / Defined OutcomeESG / SustainableCurrency HedgedMomentumEqual WeightLow Volatility

Structure

Active ETFsLeveragedInverse

Style & Size

U.S. Large CapGrowthValueU.S. Small CapU.S. Mid CapTotal Market