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
41 holdings in all 2 funds| Fund | FMUB | HYMB | Positions | Holdings |
|---|---|---|---|---|
| FMUBFidelity Municipal Bond Opportunities ETF | — | 2% 41 shared |
641 87% of fund | as of Oct 20, 2026issuer data |
| HYMBState Street SPDR Nuveen ICE High Yield Municipal Bond ETF | 2% 41 shared | — | 1,890 | 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
2.3% common weight| Holding | FMUB | HYMB | Smallest |
|---|---|---|---|
| CHICAGO IL BOE 6.25% 12/01/50, due Dec 1, 2050 | 0.32% | 0.18% | 0.18% |
| NJ TOBACCO 5% 6/1/2046, due Jun 1, 2046 | 0.15% | 0.16% | 0.15% |
| MIDA MOUNTAIN 6% 06/15/54, due Jun 15, 2054 | 0.16% | 0.13% | 0.13% |
| HOUSTON TX ARPT 5.5% 07/15/35, due Jul 15, 2035 | 0.34% | 0.13% | 0.13% |
| BLACK BELT ENE 5% 11/01/36, due Nov 1, 2036 | 0.55% | 0.12% | 0.12% |
| BLACK BELT ENE 5% 10/01/35, due Oct 1, 2035 | 0.11% | 0.13% | 0.11% |
| SOUTHEAST ENERGY AUTH 5.25% MT, due Mar 1, 2055 | 0.10% | 0.15% | 0.10% |
| MA DEV FIN AG 6.5% 07/15/60, due Jul 15, 2060 | 0.12% | 0.10% | 0.10% |
| CONN ST HEALTH 6.375% 12/15/6, due Dec 15, 2061 | 0.36% | 0.09% | 0.09% |
| SALT VERDE GAS G=CG 5% 12/1/37, due Dec 1, 2037 | 0.09% | 0.22% | 0.09% |
| CALIFORNIA HG 3.5% 11/20/35, due Nov 20, 2035 | 0.17% | 0.08% | 0.08% |
| BLACK BELT ENE 5% 12/01/34, due Dec 1, 2034 | 0.51% | 0.08% | 0.08% |
| PR ST 4% 07/01/37, due Jul 1, 2037 | 0.08% | 0.21% | 0.08% |
| SAVANNAH GEORGI 6% 06/01/50, due Jun 1, 2050 | 0.17% | 0.07% | 0.07% |
| PUB FIN AUTH W 4.5% 06/01/56, due Jun 1, 2056 | 0.09% | 0.06% | 0.06% |
| MUSKINGUM CNTY OH 5% 2/15/48, due Feb 15, 2048 | 0.06% | 0.10% | 0.06% |
| HILLSBR FL IDA 3.5% 08/01/55, due Aug 1, 2055 | 0.05% | 0.09% | 0.05% |
| NEW YORK ENERGY FINANCE 5% MT, due Jul 1, 2056 | 0.09% | 0.05% | 0.05% |
| TEXAS MUNICIPAL 5% 04/01/36, due Apr 1, 2036 | 0.33% | 0.05% | 0.05% |
| CALIFORNIA CMY 5% 12/1/32MT 55, due Jan 1, 2055 | 0.05% | 0.05% | 0.05% |
| CHANDLER AZ 3.80% 12/1/37 MT, due Dec 1, 2035 | 0.04% | 0.16% | 0.04% |
| UTAH CITY WEST 5.875% 12/01/5, due Dec 1, 2055 | 0.31% | 0.04% | 0.04% |
| MASSACHUSET REV 6% 10/01/49, due Oct 1, 2049 | 0.17% | 0.03% | 0.03% |
| NJ EDA MTR VEH 4% 07/01/34, due Jul 1, 2034 | 0.07% | 0.03% | 0.03% |
| DESERET PUBLIC 6.5% 12/01/55, due Dec 1, 2055 | 0.32% | 0.03% | 0.03% |
| BLACK BELT ENE 05/01/55 MT, due May 1, 2055 | 0.03% | 0.03% | 0.03% |
| JEFF AL W+S 5% 10/01/38, due Oct 1, 2038 | 0.17% | 0.03% | 0.03% |
| BLACK BELT ENE 5% 07/01/33, due Jul 1, 2033 | 0.07% | 0.03% | 0.03% |
| KENTUCKY INC KY 5% MT, due May 1, 2055 | 0.03% | 0.12% | 0.03% |
| WV HOSP 5% 01/01/43, due Jan 1, 2043 | 0.03% | 0.09% | 0.03% |
| STEEL PT INFRAS 4% 04/01/51, due Apr 1, 2051 | 0.02% | 0.06% | 0.02% |
| GOLDEN ST TOBAC 0% 06/01/66, due Jun 1, 2066 | 0.02% | 0.23% | 0.02% |
| STEEL PT INFRAS 5.625% 04/01/, due Apr 1, 2044 | 0.03% | 0.01% | 0.01% |
| PUB FIN AUTH W 6% 12/01/55, due Dec 1, 2055 | 0.31% | 0.01% | 0.01% |
| MET PIER & EXPO 0% 06/15/41 Q, due Jun 15, 2041 | 0.04% | 0.01% | 0.01% |
| INDEPENDENCE ME 5.375% 12/24, due Dec 1, 2054 | 0.15% | 0.01% | 0.01% |
| CTSC JOBS-ECO D 5.75% 11/15/54, due Nov 15, 2054 | 0.06% | 0.01% | 0.01% |
| IL SALES TAX 3% 06/15/33, due Jun 15, 2033 | 0.03% | 0.01% | 0.01% |
| ACTA CA RV 0% 10/01/52, due Oct 1, 2052 | 0.01% | 0.06% | 0.01% |
| PR ST 4% 07/01/33, due Jul 1, 2033 | 0.00% | 0.13% | 0.00% |
| ILLINOIS FIN AT 4% 8/15/41, due Aug 15, 2041 | 0.00% | 0.06% | 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.