ETF comparison

IWS vs SIZE overlap

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

Tracked overlap46.95%

280 shared holdings

IWS 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.

WDCWESTERN DIGITAL CORP

0.44%overlap weight

CIENCIENA CORP

0.42%overlap weight

ONON SEMICONDUCTOR CORP

0.37%overlap weight

KEYSKEYSIGHT TECHNOLOGIES INC

0.33%overlap weight

TERTERADYNE INC

0.31%overlap weight

GLWCORNING INC

0.30%overlap weight

Interpretation

Should you own both IWS and SIZE?

IWS and SIZE share 280 tracked holdings with 46.95% 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.