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
48 holdings in all 2 funds| Fund | FSMB | SHM | Positions | Holdings |
|---|---|---|---|---|
| FSMBFirst Trust Short Duration Managed Municipal ETF | — | 5% 48 shared |
581 | as of Oct 20, 2026issuer data |
| SHMState Street SPDR Nuveen ICE Short Term Municipal Bond ETF | 5% 48 shared | — | 1,107 | 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
5.0% common weight| Holding | FSMB | SHM | Smallest |
|---|---|---|---|
| SOUTHEAST ENERGY AUTHORITY A COOP DIST AL 5%, due 10/01/2030 | 0.51% | 0.89% | 0.51% |
| KENTUCKY ST PUBLIC ENERGY AUTH Variable rate, due 06/01/2055 | 0.71% | 0.32% | 0.32% |
| TEXAS ST MUNI GAS ACQUISITION & SPLY CORP IV Variable rate, due 01/01/2054 | 0.44% | 0.21% | 0.21% |
| NEW MEXICO ST MUNI ENERGY ACQUISITION AUTH Variable rate, due 06/01/2054 | 0.57% | 0.21% | 0.21% |
| TENNESSEE ST ENERGY ACQUISITION CORP Variable rate, due 05/01/2053 | 0.39% | 0.20% | 0.20% |
| CALIFORNIA CMNTY CHOICE FING AUTH Variable rate, due 07/01/2053 | 0.27% | 0.19% | 0.19% |
| TENNERGY CORP TN GAS REVENUE Variable rate, due 10/01/2054 | 0.37% | 0.18% | 0.18% |
| CALIFORNIA CMNTY CHOICE FING AUTH Variable rate, due 02/01/2052 | 0.32% | 0.17% | 0.17% |
| SAINT JOHN THE BAPTIST PARISH LA Variable rate, due 06/01/2037 | 0.30% | 0.16% | 0.16% |
| CENTRL PLAINS ENERGY PROJ NE GAS PROJ Variable rate, due 05/01/2054 | 0.16% | 0.17% | 0.16% |
| MAIN STREET NATURAL GAS INC GA Variable rate, due 12/01/2054 | 0.21% | 0.16% | 0.16% |
| BLACK BELT ENERGY GAS DIST AL Variable rate, due 02/01/2053 | 0.16% | 0.23% | 0.16% |
| MAIN STREET NATURAL GAS INC GA Variable rate, due 04/01/2054 | 0.31% | 0.15% | 0.15% |
| NEW JERSEY ST N/C, 2%, due 06/01/2029 | 0.29% | 0.14% | 0.14% |
| MAIN STREET NATURAL GAS INC GA Variable rate, due 07/01/2052 | 0.14% | 0.20% | 0.14% |
| CENTRL PLAINS ENERGY PROJ NE Variable rate, due 08/01/2055 | 0.24% | 0.12% | 0.12% |
| MONTGOMERY CNTY PA INDL DEV AUTH N/C, 4.10%, due 06/01/2029 | 0.31% | 0.12% | 0.12% |
| BLACK BELT ENERGY GAS DIST AL Variable rate, due 12/01/2053 | 0.16% | 0.11% | 0.11% |
| NORTH CAROLINA ST MED CARE COMMN Variable rate, due 06/01/2055 | 0.16% | 0.11% | 0.11% |
| SOUTHEAST ENERGY AUTH AL COMMODITY SPLY Variable rate, due 11/01/2051 | 0.36% | 0.10% | 0.10% |
| MARICOPA CNTY AZ INDL DEV AUTH N/C, 5%, due 01/01/2030 | 0.10% | 0.15% | 0.10% |
| FORSYTH MT POLL CONTROL REVENUE 3.875%, due 07/01/2028 | 0.37% | 0.09% | 0.09% |
| INDIANA ST FIN AUTH HLTH SYS REV Variable rate, due 10/01/2064 | 0.20% | 0.09% | 0.09% |
| PUBLIC FIN AUTH WI POLL CONTROL REV Variable rate, due 10/01/2046 | 0.27% | 0.09% | 0.09% |
| MAIN STREET NATURAL GAS INC GA Variable rate, due 09/01/2052 | 0.08% | 0.12% | 0.08% |
| WASHINGTON ST HLTH CARE FACS AUTH N/C, 5%, due 10/01/2030 | 0.33% | 0.08% | 0.08% |
| LANCASTER OH PORT AUTH GAS REV Variable rate, due 02/01/2055 | 0.16% | 0.07% | 0.07% |
| MISSOURI ST HLTH & EDUCTNL FACS AUTH Variable rate, due 05/01/2052 | 0.16% | 0.06% | 0.06% |
| BLACK BELT ENERGY GAS DIST AL 5%, due 07/01/2031 | 0.12% | 0.06% | 0.06% |
| COLORADO ST HLTH FACS AUTH REV Variable rate, due 11/15/2060 | 0.64% | 0.05% | 0.05% |
| KENTUCKY ST PUBLIC ENERGY AUTH Variable rate, due 02/01/2050 | 0.05% | 0.14% | 0.05% |
| CALIFORNIA CMNTY CHOICE FING AUTH Variable rate, due 05/01/2053 | 0.05% | 0.33% | 0.05% |
| CASS CNTY ND JT WTR RESOURCE DIST 3.45%, due 04/01/2027 | 0.31% | 0.05% | 0.05% |
| SOUTHEAST ENERGY AUTH AL COMMODITY SPLY Variable rate, due 01/01/2053 | 0.05% | 0.08% | 0.05% |
| CMNTY DEV ADMIN MD MF DEV REV N/C, 3.30%, due 01/01/2029 | 0.46% | 0.04% | 0.04% |
| FARMINGTON NM POLL CONTROL REV Variable rate, due 06/01/2040 | 0.43% | 0.04% | 0.04% |
| OHIO ST HOSP REVENUE 5%, due 11/15/2031 | 0.07% | 0.04% | 0.04% |
| NEW YORK CITY NY HSG DEV CORP MF HSG REV Variable rate, due 11/01/2064 | 0.31% | 0.03% | 0.03% |
| DELAWARE ST ECON DEV AUTH REV N/C, 3.60%, due 01/01/2031 | 0.37% | 0.03% | 0.03% |
| CONNECTICUT ST N/C, 5%, due 10/15/2029 | 0.12% | 0.03% | 0.03% |
| NORTHAMPTON CNTY PA GEN PURP AUTH HOSP REV N/C, 5%, due 08/15/2030 | 0.23% | 0.03% | 0.03% |
| BLACK BELT ENERGY GAS DIST AL Variable rate, due 07/01/2052 | 0.53% | 0.03% | 0.03% |
| BLACK BELT ENERGY GAS DIST AL 5%, due 12/01/2030 | 0.09% | 0.03% | 0.03% |
| LEHIGH CNTY PA INDL DEV AUTH N/C, 3%, due 09/01/2029 | 0.37% | 0.03% | 0.03% |
| UNIV OF KANSAS KS HOSP AUTH HLTH FACS Variable rate, due 03/01/2055 | 0.12% | 0.02% | 0.02% |
| CALIFORNIA CMNTY CHOICE FING AUTH 5%, due 07/01/2031 | 0.08% | 0.02% | 0.02% |
| ARIZONA ST INDL DEV AUTH NATL CHRT SCH 4%, due 11/01/2027 | 0.08% | 0.01% | 0.01% |
| MAIN STREET NATURAL GAS INC GA Variable rate, due 05/01/2052 | 0.01% | 0.16% | 0.01% |
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.