ETF Overlap Checker

ETF comparison

IWO vs SMMD overlap

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

Tracked overlap25.62%

742 shared holdings

IWO expense0.00%

Unknown

SMMD expense0.00%

Unknown

Data date2026-05-01

2026-05-01

Shared top holdings

Overlap uses the smaller fund weight for each shared holding.

BEBLOOM ENERGY CLASS A CORP
0.82%overlap weight
CRDOCREDO TECHNOLOGY GROUP HOLDING LTD
0.37%overlap weight
FNFABRINET
0.30%overlap weight
CDECOEUR MINING INC
0.23%overlap weight
NXTNEXTPOWER INC CLASS A
0.22%overlap weight
IONQIONQ INC
0.19%overlap weight

Interpretation

Should you own both IWO and SMMD?

IWO and SMMD share 742 tracked holdings with 25.62% 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.