Fund Overlap

See which holdings any two equity ETFs have in common, along with top differences in exposure.


For overlap across multiple ETFs use Portfolio Builder   
OVERLAP
10%
OVERLAP
BY WEIGHT
89
# OF OVERLAPPING HOLDINGS
IBB
258
HOLDINGS
40%
ALSO IN BBC
BBC
125
HOLDINGS
86%
ALSO IN IBB
SECTOR DRIFT (IBB minus BBC)
OVERLAPPING HOLDINGS

Top 5 only shown here. Please log-in or sign up for a Basic (Free) membership to view the complete list.


Company Weight
in IBB
Weight
in BBC
Overlap
REVOLUTION MEDICINES, INC. 0.7% 0.9% 0.7%
VAXCYTE, INC. 0.5% 0.8% 0.5%
AKERO THERAPEUTICS, INC. 0.5% 1.5% 0.5%
CYTOKINETICS INC 0.5% 0.9% 0.5%
NUVALENT, INC. CLASS A 0.4% 0.8% 0.4%
IBB Overweight Relative to BBC
GILEAD SCIENCES INC 7.7%
VERTEX PHARMACEUTICALS INC 7.7%
AMGEN INC 7.4%
REGENERON PHARMACEUTICALS 6.4%
ALNYLAM PHARMACEUTICALS INC 4.7%
IQVIA HOLDINGS INC 3.2%
METTLER-TOLEDO INTERNATIONAL 2.9%
NATERA INC 2.6%
ARGENX SE ADR 2.5%
WATERS CORP 2.5%
IBB Underweight Relative to BBC
LIQUIDIA TECHNOLOGIES, INC. -1.4%
XERIS PHARMACEUTICALS INC -1.3%
SANA BIOTECHNOLOGY, INC. -1.2%
PROTHENA CORP PLC -1.1%
ALLOGENE THERAPEUTICS, INC. -1.1%
ARCUTIS BIOTHERAPEUTICS INC -1.0%
DIANTHUS THERAPEUTICS INC -1.0%
ANAPTYSBIO, INC. -1.0%
VIR BIOTECHNOLOGY, INC. -1.0%
VERVE THERAPEUTICS, INC. -1.0%
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