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
14%
OVERLAP
BY WEIGHT
83
# OF OVERLAPPING
HOLDINGS
IBB
251
HOLDINGS
39%
ALSO IN BBC
BBC
125
HOLDINGS
81%
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. | 2.5% | 1.3% | 1.3% |
|
CYTOKINETICS INC | 0.8% | 0.7% | 0.7% |
|
VAXCYTE, INC. | 0.7% | 0.9% | 0.7% |
|
PROTAGONIST THERAPEUTICS, INC. | 0.5% | 0.8% | 0.5% |
|
KYMERA THERAPEUTICS, INC. | 0.5% | 0.7% | 0.5% |
IBB Overweight Relative to BBC
|
GILEAD SCIENCES INC | 7.5% |
|
VERTEX PHARMACEUTICALS INC | 7.4% |
|
AMGEN INC | 7.2% |
|
REGENERON PHARMACEUTICALS | 5.7% |
|
ALNYLAM PHARMACEUTICALS INC | 3.6% |
 |
ARGENX SE ADR | 3.5% |
|
NATERA INC | 2.7% |
|
BIOGEN IDEC INC | 2.6% |
|
ILLUMINA INC | 2.2% |
|
UNITED THERAPEUTICS CORP | 2.2% |
IBB Underweight Relative to BBC
|
ERASCA, INC. | -1.8% |
|
ENLIVEN THERAPEUTICS, INC. | -1.7% |
|
DIANTHUS THERAPEUTICS INC | -1.5% |
|
ALUMIS INC | -1.5% |
|
TANGO THERAPEUTICS, INC. | -1.5% |
|
REZOLUTE INC | -1.4% |
|
ORUKA THERAPEUTICS INC | -1.3% |
|
CORVUS PHARMACEUTICALS, INC. | -1.3% |
|
JADE BIOSCIENCES INC | -1.2% |
|
KODIAK SCIENCES, INC. | -1.2% |