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

89
Number of overlapping holdings
40.5%
% of IBB's 258 holdings also in BBC
85.6%
% of BBC's 125 holdings also in IBB
Overlap by Weight
Sector Drift (IBB minus BBC)
Overlapping Holdings
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Company | Weight in IBB |
Weight in BBC |
Overlap | |
---|---|---|---|---|
REVOLUTION MEDICINES, INC. | 0.8% | 0.9% | 0.8% | |
VAXCYTE, INC. | 0.5% | 0.8% | 0.5% | |
AVIDITY BIOSCIENCES INC | 0.5% | 0.9% | 0.5% | |
CYTOKINETICS INC | 0.4% | 0.9% | 0.4% | |
AKERO THERAPEUTICS, INC. | 0.4% | 1.5% | 0.4% |
Position Highlights (Non-Overlapping Exposures)
IBB Overweight Relative to BBC
GILEAD SCIENCES INC | 8.6% | |
AMGEN INC | 8.2% | |
VERTEX PHARMACEUTICALS INC | 8.2% | |
REGENERON PHARMACEUTICALS | 5.9% | |
ALNYLAM PHARMACEUTICALS INC | 4.2% | |
IQVIA HOLDINGS INC | 3.0% | |
ARGENX SE ADR | 2.8% | |
METTLER-TOLEDO INTERNATIONAL | 2.8% | |
NATERA INC | 2.4% | |
WATERS CORP | 2.4% |
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% | |
AKERO THERAPEUTICS, INC. | -1.0% | |
VERVE THERAPEUTICS, INC. | -1.0% | |
ARCUTIS BIOTHERAPEUTICS INC | -1.0% | |
DIANTHUS THERAPEUTICS INC | -1.0% | |
VIR BIOTECHNOLOGY, INC. | -1.0% |