ETF comparison

ITA vs IDEF overlap

Compare ITA ETF and IDEF ETF by shared holdings, expense ratio, issuer, category, and tracked overlap.

Tracked overlap38.97%

30 shared holdings

ITA expense0.00%

Unknown

IDEF expense0.00%

Unknown

Data date2026-05-01

2026-05-01

Shared top holdings

Overlap uses the smaller fund weight for each shared holding.

RTXRTX CORP

8.94%overlap weight

GDGENERAL DYNAMICS CORP

4.32%overlap weight

LMTLOCKHEED MARTIN CORP

3.96%overlap weight

NOCNORTHROP GRUMMAN CORP

3.94%overlap weight

BABOEING

2.64%overlap weight

RKLBROCKET LAB CORP

2.45%overlap weight

Interpretation

Should you own both ITA and IDEF?

ITA and IDEF share 30 tracked holdings with 38.97% 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.