ETF comparison

IBB vs IDNA overlap

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

Tracked overlap18.74%

32 shared holdings

IBB expense0.00%

Unknown

IDNA expense0.00%

Unknown

Data date2026-05-01

2026-05-01

Shared top holdings

Overlap uses the smaller fund weight for each shared holding.

REGNREGENERON PHARMACEUTICALS INC

3.69%overlap weight

VRTXVERTEX PHARMACEUTICALS INC

3.59%overlap weight

RVMDREVOLUTION MEDICINES INC

2.27%overlap weight

INCYINCYTE CORP

1.83%overlap weight

MRNAMODERNA INC

1.55%overlap weight

GMABGENMAB SPONSORED ADR

1.17%overlap weight

Interpretation

Should you own both IBB and IDNA?

IBB and IDNA share 32 tracked holdings with 18.74% 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.