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
46 holdings in all 2 funds| Fund | FMB | MUB | Positions | Holdings |
|---|---|---|---|---|
| FMBFirst Trust Managed Municipal ETF | — | 0% 46 shared |
1,245 | as of Oct 20, 2026issuer data |
| MUBiShares National Muni Bond ETF | 0% 46 shared | — | 7,603 | as of Oct 20, 2026issuer data |
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
0.5% common weight| Holding | FMB | MUB | Smallest |
|---|---|---|---|
| SAN ANTONIO TX ELEC & GAS REV 5.25%, due 02/01/2049 | 0.06% | 0.05% | 0.05% |
| ILLINOIS ST 5%, due 11/01/2029 | 0.24% | 0.04% | 0.04% |
| TEXAS ST TRANSPRTN COMMN CENTRAL TX TPK SYS 5%, due 08/15/2038 | 0.08% | 0.03% | 0.03% |
| NEW YORK CITY NY MUNI WTR FIN AUTH 5.50%, due 06/15/2039 | 0.11% | 0.03% | 0.03% |
| PENNSYLVANIA ST TURNPIKE COMMN TPK REV 4%, due 12/01/2045 | 0.20% | 0.02% | 0.02% |
| NEW JERSEY ST TRANSPRTN TRUST FUND AUTH 5%, due 06/15/2045 | 0.09% | 0.02% | 0.02% |
| NEW YORK ST DORM AUTH SALES TAX 5%, due 03/15/2038 | 0.42% | 0.02% | 0.02% |
| FAIRFAX CNTY VA 4%, due 10/01/2041 | 0.18% | 0.02% | 0.02% |
| TEXAS ST PUBLIC FIN AUTH LEASE REV Variable rate, due 02/01/2046 | 0.06% | 0.01% | 0.01% |
| NEW JERSEY ST TRANSPRTN TRUST FUND AUTH 5.25%, due 06/15/2050 | 0.16% | 0.01% | 0.01% |
| MIAMI-DADE CNTY FL EDUCTNL FACS AUTH 5%, due 04/01/2043 | 0.08% | 0.01% | 0.01% |
| ILLINOIS ST 5.25%, due 05/01/2039 | 0.05% | 0.01% | 0.01% |
| NEW YORK ST THRUWAY AUTH GEN REV 4%, due 01/01/2045 | 0.01% | 0.06% | 0.01% |
| NEW YORK CITY NY TRANSITIONAL FIN AUTH 5.25%, due 11/01/2047 | 0.05% | 0.01% | 0.01% |
| MISSOURI JT MUNI ELEC UTILITY COMMN 5%, due 12/01/2039 | 0.05% | 0.01% | 0.01% |
| CONNECTICUT ST 5.50%, due 10/15/2043 | 0.11% | 0.01% | 0.01% |
| ILLINOIS ST 5.25%, due 05/01/2045 | 0.05% | 0.01% | 0.01% |
| MASSACHUSETTS ST DEV FIN AGY REV Variable rate, due 11/01/2055 | 0.14% | 0.01% | 0.01% |
| INDIANA ST MUNI PWR AGY 5%, due 01/01/2042 | 0.03% | 0.01% | 0.01% |
| MET NASHVILLE TN ARPT AUTH ARPT REV 5%, due 07/01/2045 | 0.08% | 0.01% | 0.01% |
| JEFFERSON CNTY AL SWR REVENUE 5.25%, due 10/01/2042 | 0.16% | 0.01% | 0.01% |
| MIAMI-DADE CNTY FL EDUCTNL FACS AUTH 5%, due 04/01/2045 | 0.05% | 0.01% | 0.01% |
| NEW YORK ST DORM AUTH ST PERSONAL INC TAX 5%, due 03/15/2039 | 0.03% | 0.01% | 0.01% |
| NEW YORK NY 5%, due 03/01/2042 | 0.32% | 0.01% | 0.01% |
| NEW YORK ST DORM AUTH ST PERSONAL INC TAX REV 4%, due 03/15/2041 | 0.11% | 0.01% | 0.01% |
| CHICAGO IL 5%, due 01/01/2035 | 0.07% | 0.01% | 0.01% |
| N TEXAS ST MUNI WTR DIST WTR SYS REV 5%, due 09/01/2041 | 0.09% | 0.01% | 0.01% |
| ILLINOIS ST 5.50%, due 03/01/2042 | 0.18% | 0.01% | 0.01% |
| E BATON ROUGE PARISH LA SWR COMMN REV 4%, due 02/01/2045 | 0.30% | 0.01% | 0.01% |
| NEW JERSEY ST TRANSPRTN TRUST FUND AUTH 5%, due 12/15/2030 | 0.03% | 0.01% | 0.01% |
| INTERMOUNTAIN PWR AGY UT PWR SPLY REV 5%, due 07/01/2040 | 0.16% | 0.01% | 0.01% |
| TEXAS ST TRANSPRTN COMMN CENTRAL TX TPK SYS 5%, due 08/15/2042 | 0.09% | 0.01% | 0.01% |
| HUDSON YARDS INFRASTRUCTURE CORP NY 5%, due 02/15/2037 | 0.03% | 0.01% | 0.01% |
| JEFFERSON CNTY AL SWR REVENUE 5%, due 10/01/2039 | 0.03% | 0.01% | 0.01% |
| NEW YORK ST DORM AUTH ST PERSONAL INC TAX 5.25%, due 03/15/2046 | 0.08% | 0.01% | 0.01% |
| ILLINOIS ST 5.25%, due 05/01/2038 | 0.04% | 0.00% | 0.00% |
| MIAMI-DADE CNTY FL EDUCTNL FACS AUTH 5%, due 04/01/2044 | 0.05% | 0.00% | 0.00% |
| ILLINOIS ST 5.50%, due 03/01/2047 | 0.09% | 0.00% | 0.00% |
| ILLINOIS ST 4%, due 03/01/2038 | 0.10% | 0.00% | 0.00% |
| NEW JERSEY ST TRANSPRTN TRUST 5%, due 06/15/2044 | 0.06% | 0.00% | 0.00% |
| CONNECTICUT ST 3%, due 01/15/2039 | 0.04% | 0.00% | 0.00% |
| PENNSYLVANIA ST TURNPIKE COMMN TPK REV 5%, due 12/01/2038 | 0.04% | 0.00% | 0.00% |
| LAFAYETTE LA UTILITIES REVENUE 5%, due 11/01/2046 | 0.11% | 0.00% | 0.00% |
| GREAT LAKES MI WTR AUTH WTR SPLY SYS 5%, due 07/01/2046 | 0.05% | 0.00% | 0.00% |
| NEW JERSEY ST TRANSPRTN TRUST FUND AUTH 5%, due 12/15/2039 | 0.01% | 0.00% | 0.00% |
| GREAT LAKES MI WTR AUTH SEWAGE DISP SYS 5%, due 07/01/2037 | 0.11% | 0.00% | 0.00% |
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.