ETF Overlap Checker

ETF comparison

IYJ vs SIZE overlap

Compare IYJ ETF and SIZE ETF by shared holdings, expense ratio, issuer, category, and tracked overlap.

Tracked overlap19.88%

107 shared holdings

IYJ expense0.00%

Unknown

SIZE expense0.00%

Unknown

Data date2026-05-01

2026-05-01

Shared top holdings

Overlap uses the smaller fund weight for each shared holding.

DOWDOW INC
0.33%overlap weight
KEYSKEYSIGHT TECHNOLOGIES INC
0.33%overlap weight
FIXCOMFORT SYSTEMS USA INC
0.32%overlap weight
GEVGE VERNOVA INC
0.32%overlap weight
ODFLOLD DOMINION FREIGHT LINE INC
0.28%overlap weight
RKLBROCKET LAB CORP
0.28%overlap weight

Interpretation

Should you own both IYJ and SIZE?

IYJ and SIZE share 107 tracked holdings with 19.88% 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.