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
26 holdings in all 2 funds| Fund | BMOP | HTAX | Positions | Holdings |
|---|---|---|---|---|
| BMOPBNY Mellon Municipal Opportunities ETF | — | 5% 26 shared |
665 | as of May 29, 2026SEC filing |
| HTAXNomura National High-Yield Municipal Bond ETF | 5% 26 shared | — | 215 | as of Jun 30, 2026SEC filing |
Each cell: overlap by weight, and how many positions the two funds share. Stocks, funds and bonds are compared, a bond by its own identifier and a Treasury bill by its maturity date; cash and derivatives are not, and a fund that is partly either shows how much of it is compared.
Held by both funds
4.6% common weight| Holding | BMOP | HTAX | Smallest |
|---|---|---|---|
| PUERTO RICO SALES TAX FINANCING CORP 5%, due Jul 1, 2058 | 0.48% | 1.79% | 0.48% |
| HIGH STAR RANCH INFRASTRUCTURE FING DIST UTAH 6.25%, due Dec 1, 2055 | 0.51% | 0.44% | 0.44% |
| ARKANSAS DEVELOPMENT FINANCE AUTHORITY (AR) 5.7%, due May 1, 2053 | 0.40% | 0.53% | 0.40% |
| CALIFORNIA INFRASTRUCTURE ECONOMIC DEVELOPMENT BANK (CA) 12%, due Jan 1, 2065 | 0.39% | 0.50% | 0.39% |
| PUBLIC FINANCE AUTHORITY (WI) 6.5%, due Dec 31, 2065 | 0.31% | 0.96% | 0.31% |
| PUBLIC FINANCE AUTHORITY (WI) 5.75%, due Dec 31, 2065 | 0.29% | 1.16% | 0.29% |
| CHICAGO CITY BOARD OF EDUCATION (IL) 5.5%, due Dec 1, 2045 | 0.28% | 0.87% | 0.28% |
| BUILD NYC RESOURCE CORP N Y 7%, due Dec 15, 2065 | 0.41% | 0.26% | 0.26% |
| CALIFORNIA COMMUNITY CHOICE FINANCING AUTHORITY (CA) 4%, due Feb 1, 2052 | 0.17% | 0.61% | 0.17% |
| ARKANSAS DEVELOPMENT FINANCE AUTHORITY (AR) 5.45%, due Sep 1, 2052 | 0.14% | 0.44% | 0.14% |
| PUBLIC FINANCE AUTHORITY (WI) 5%, due Feb 1, 2062 | 0.14% | 0.85% | 0.14% |
| GDB DEBT RECOVERY AUTHORITY 7.5%, due Aug 20, 2040 | 0.14% | 1.66% | 0.14% |
| INDIANA FIN AUTH 5%, due Jun 1, 2053 | 0.12% | 0.59% | 0.12% |
| PUERTO RICO, COMMONWEALTH OF 0.01%, due Nov 1, 2043 | 0.12% | 1.25% | 0.12% |
| UNITED AIRLINES INC 4%, due Jul 15, 2041 | 0.12% | 0.57% | 0.12% |
| PUERTO RICO SALES TAX FINANCING CORP, due Jul 1, 2046 | 0.11% | 0.80% | 0.11% |
| AMERICAN AIRLINES INC 6.25%, due Dec 1, 2040 | 0.09% | 0.46% | 0.09% |
| ARIZONA INDUSTRIAL DEVELOPMENT AUTHORITY (THE) (AZ) 5.125%, due Jan 1, 2059 | 0.09% | 0.52% | 0.09% |
| MISSION TEX ECONOMIC DEVELOPMENT CORP 5%, due Dec 1, 2064 | 0.09% | 0.71% | 0.09% |
| PUERTO RICO SALES TAX FINANCING CORP 4.75%, due Jul 1, 2053 | 0.08% | 1.24% | 0.08% |
| CHICAGO (IL), CITY OF 5.5%, due Jan 1, 2049 | 0.07% | 0.41% | 0.07% |
| PUERTO RICO SALES TAX FINANCING CORP, due Jul 1, 2051 | 0.07% | 0.58% | 0.07% |
| CALIFORNIA MUNICIPAL FINANCE AUTHORITY (CA) 5%, due Jul 1, 2038 | 0.06% | 0.52% | 0.06% |
| CALIFORNIA SCH FIN AUTH 5%, due Jun 1, 2064 | 0.06% | 0.40% | 0.06% |
| GOLDEN STATE TOBACCO SECURITIZATION CORP (CA), due Jun 1, 2066 | 0.06% | 0.53% | 0.06% |
| PUERTO RICO, COMMONWEALTH OF 4%, due Jul 1, 2046 | 0.04% | 0.75% | 0.04% |
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.
Bond funds are matched issue by issue: two Treasury funds overlap only where they hold the same bill, note or bond. A fund of short-dated bills replaces its whole portfolio every few months, so holdings from an older filing may have matured; the table says when they have.
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.