ETF Overlap Tool
Enter up to six ETFs to see how much of each is the same securities. Overlap by weight is the sum, over every holding two funds share, of the smaller of the two weights: 100% means identical portfolios, 0% means nothing in common.
Overlap by weight
24 holdings in all 2 funds| Fund | EWT | FEM | Positions | Holdings |
|---|---|---|---|---|
| EWTiShares MSCI Taiwan ETF | — | 19% 24 shared |
75 | as of Oct 8, 2026issuer data |
| FEMFirst Trust Emerging Markets AlphaDEX Fund | 19% 24 shared | — | 151 | as of Jun 30, 2026SEC filing |
Each cell: overlap by weight, and how many positions the two funds share. Equity, preferred and fund holdings are compared; cash and derivatives are not.
Held by both funds
18.9% common weight| Holding | EWT | FEM | Smallest |
|---|---|---|---|
| UNIMICRON TECHNOLOGY | 2.28% | 1.95% | 1.95% |
| ELITE MATERIAL | 2.21% | 1.70% | 1.70% |
| ACCTON TECHNOLOGY | 1.53% | 1.69% | 1.53% |
| ASIA VITAL COMPONENTS | 1.76% | 1.30% | 1.30% |
| ASE TECHNOLOGY HOLDING | 3.04% | 1.27% | 1.27% |
| CHROMA ATE INC | 1.24% | 1.21% | 1.21% |
| DELTA ELECTRONICS | 3.94% | 1.16% | 1.16% |
| INNOLUX CORP | 0.99% | 2.36% | 0.99% |
| GOLD CIRCUIT ELECTRONICS | 0.74% | 1.14% | 0.74% |
| NANYA TECHNOLOGY CORP | 0.73% | 0.94% | 0.73% |
| BIZLINK HOLDING INC | 0.73% | 0.68% | 0.68% |
| ZHEN DING TECHNOLOGY HOLDING LTD | 1.12% | 0.63% | 0.63% |
| UNITED MICRO ELECTRONICS CORP | 2.06% | 0.60% | 0.60% |
| TS FINANCIAL HOLDING | 1.48% | 0.59% | 0.59% |
| JENTECH PRECISION INDUSTRIAL LTD | 1.22% | 0.56% | 0.56% |
| EVERGREEN MARINE CORP (TAIWAN) LTD | 0.51% | 0.95% | 0.51% |
| WINBOND ELECTRONICS | 0.61% | 0.47% | 0.47% |
| NAN YA PLASTICS CORP | 2.46% | 0.46% | 0.46% |
| LARGAN PRECISION LTD | 1.21% | 0.41% | 0.41% |
| EVA AIRWAYS | 0.37% | 1.36% | 0.37% |
| TAIWAN SEMICONDUCTOR MANUFACTURING | 21.90% | 0.28% | 0.28% |
| ASUSTEK COMPUTER INC | 1.02% | 0.26% | 0.26% |
| WAN HAI LINES | 0.26% | 1.05% | 0.26% |
| FORMOSA CHEMICALS & FIBRE CORP | 0.66% | 0.25% | 0.25% |
Reading overlap
Two funds with 80% overlap move together and holding both mostly doubles one exposure and both fees. Low overlap is not the same as diversification: two funds can share no holdings and still be driven by the same factor. To see what a whole portfolio owns, use the portfolio x-ray.
Holdings come from each issuer's daily file where we have one and otherwise from the fund's latest SEC filing, so the two sides of a comparison can be from different dates. The table shows each fund's date.
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.