ETF comparison

IBB vs IWO overlap

Compare IBB ETF and IWO ETF by shared holdings, expense ratio, issuer, category, and tracked overlap.

Tracked overlap10.93%

88 shared holdings

IBB expense0.00%

Unknown

IWO expense0.00%

Unknown

Data date2026-05-01

2026-05-01

Shared top holdings

Overlap uses the smaller fund weight for each shared holding.

BBIOBRIDGEBIO PHARMA INC

0.68%overlap weight

ARWRARROWHEAD PHARMACEUTICALS INC

0.57%overlap weight

MDGLMADRIGAL PHARMACEUTICALS INC

0.53%overlap weight

AXSMAXSOME THERAPEUTICS INC

0.46%overlap weight

KRYSKRYSTAL BIOTECH INC

0.39%overlap weight

PTGXPROTAGONIST THERAPEUTICS INC

0.34%overlap weight

Interpretation

Should you own both IBB and IWO?

IBB and IWO share 88 tracked holdings with 10.93% overlap in the imported holdings set. High overlap can be fine when the funds serve a deliberate role, but it can also mean less diversification than the ticker count suggests.

Use the portfolio analyzer to test your actual allocations. Pairwise overlap does not account for how much of each ETF you own.