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
458 holdings in all 2 funds| Fund | MUB | TFI | Positions | Holdings |
|---|---|---|---|---|
| MUBiShares National Muni Bond ETF | — | 7% 458 shared |
7,603 | as of Oct 20, 2026issuer data |
| TFIState Street SPDR Nuveen ICE Municipal Bond ETF | 7% 458 shared | — | 1,991 | 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
7.3% common weight| Holding | MUB | TFI | Smallest |
|---|---|---|---|
| OKLAHOMA TRANSN AUTH OK F/K/A 5.5%, due Jan 1, 2053 | 0.12% | 0.08% | 0.08% |
| MASSACHUSETTS ST 5%, due May 1, 2054 | 0.09% | 0.07% | 0.07% |
| TRIBOROUGH BRDG & TUNL AUTH N 5%, due May 15, 2051 | 0.09% | 0.07% | 0.07% |
| CHICAGO ILL TRAN AUTH SALES TA 5%, due Dec 1, 2049 | 0.09% | 0.07% | 0.07% |
| DISTRICT COLUMBIA INCOME TAX R 5.5%, due Jul 1, 2047 | 0.06% | 0.12% | 0.06% |
| NEW YORK ST URBAN DEV CORP REV 4%, due Mar 15, 2049 | 0.07% | 0.06% | 0.06% |
| NORTHWEST TEX INDPT SCH DIST 5.25%, due Feb 15, 2055 | 0.13% | 0.06% | 0.06% |
| PROSPER TEX INDPT SCH DIST 4%, due Feb 15, 2054 | 0.07% | 0.06% | 0.06% |
| NEW YORK ST TWY AUTH GEN REV J 4%, due Jan 1, 2045 | 0.06% | 0.07% | 0.06% |
| UNIVERSITY CALIF REVS 4%, due May 15, 2047 | 0.06% | 0.06% | 0.06% |
| CALIFORNIA EDL FACS AUTH REV 5%, due Mar 1, 2035 | 0.05% | 0.10% | 0.05% |
| METROPOLITAN TRANSN AUTH N Y R 5%, due Nov 15, 2050 | 0.05% | 0.06% | 0.05% |
| METROPOLITAN TRANSN AUTH N Y R 5%, due Nov 15, 2039 | 0.05% | 0.06% | 0.05% |
| UNIVERSITY OF CALIFORNIA 5.25%, due May 15, 2038 | 0.05% | 0.14% | 0.05% |
| NEW YORK N Y 5%, due Aug 1, 2029 | 0.05% | 0.18% | 0.05% |
| NEW YORK N Y 5%, due Mar 1, 2044 | 0.05% | 0.05% | 0.05% |
| NEW JERSEY ST 4%, due Jun 1, 2030 | 0.07% | 0.05% | 0.05% |
| NEW YORK N Y CITY MUN WTR FIN 5.25%, due Jun 15, 2047 | 0.09% | 0.05% | 0.05% |
| CALIFORNIA EDL FACS AUTH REV 5%, due Oct 1, 2055 | 0.09% | 0.05% | 0.05% |
| MARYLAND (STATE OF) 5%, due Jun 1, 2037 | 0.05% | 0.08% | 0.05% |
| PHILADELPHIA PA WTR & WASTEWTR 5%, due Oct 1, 2042 | 0.05% | 0.05% | 0.05% |
| DISTRICT COLUMBIA UNIV REV 5%, due Apr 3, 2035 | 0.09% | 0.05% | 0.05% |
| LOWER COLO RIV AUTH TEX TRANSM 5.25%, due May 15, 2054 | 0.05% | 0.05% | 0.05% |
| UNIVERSITY CALIF REVS 5%, due May 15, 2048 | 0.04% | 0.07% | 0.04% |
| ILLINOIS MUN ELEC AGY PWR SUPP 5%, due Feb 1, 2034 | 0.04% | 0.05% | 0.04% |
| NEW YORK ST DORM AUTH ST PERS 3.25%, due Mar 15, 2035 | 0.04% | 0.06% | 0.04% |
| UNIVERSITY CALIF REVS 5.5%, due May 15, 2040 | 0.04% | 0.09% | 0.04% |
| HAMPTON RDS TRANSN ACCOUNTABIL 5.25%, due Jul 1, 2060 | 0.04% | 0.09% | 0.04% |
| LOS ANGELES CALIF DEPT WTR & P 5%, due Jul 1, 2030 | 0.04% | 0.06% | 0.04% |
| NEW JERSEY ST 5%, due Jun 1, 2029 | 0.04% | 0.07% | 0.04% |
| PRIVATE COLLEGES & UNIVS AUTH 5%, due Sep 1, 2033 | 0.04% | 0.07% | 0.04% |
| CALIFORNIA ST 4%, due Mar 1, 2036 | 0.04% | 0.08% | 0.04% |
| TRIBOROUGH BRDG & TUNL AUTH N 5.5%, due May 15, 2052 | 0.07% | 0.04% | 0.04% |
| OHIO ST UNIV GEN RCPTS 5%, due Jun 1, 2035 | 0.11% | 0.04% | 0.04% |
| PEACE RIVER/MANASOTA REGL WTR 5.5%, due Oct 1, 2055 | 0.05% | 0.04% | 0.04% |
| SALT RIV PROJ AGRIC IMPT & PWR 5.25%, due Jan 1, 2055 | 0.05% | 0.04% | 0.04% |
| NEW JERSEY ST EDL FACS AUTH RE 5%, due Jul 1, 2031 | 0.09% | 0.04% | 0.04% |
| NEW YORK ST DORM AUTH REVS NON 5.5%, due Jul 1, 2054 | 0.08% | 0.04% | 0.04% |
| CALIFORNIA ST 5%, due Nov 1, 2042 | 0.05% | 0.04% | 0.04% |
| CHICAGO ILL O HARE INTL ARPT R 5%, due Jan 1, 2048 | 0.05% | 0.04% | 0.04% |
| NEW YORK ST DORM AUTH ST PERS 5%, due Mar 15, 2033 | 0.04% | 0.04% | 0.04% |
| MICHIGAN ST TRUNK LINE 4%, due Nov 15, 2045 | 0.05% | 0.04% | 0.04% |
| JEFFERSON CNTY ALA SWR REV 5.5%, due Oct 1, 2053 | 0.04% | 0.04% | 0.04% |
| JEA FLA WTR & SWR SYS REV 5.5%, due Oct 1, 2054 | 0.04% | 0.06% | 0.04% |
| NORTH CAROLINA ST GRANT ANTIC 5%, due Mar 1, 2028 | 0.04% | 0.07% | 0.04% |
| MASSACHUSETTS ST 5%, due Nov 1, 2045 | 0.04% | 0.04% | 0.04% |
| MASSACHUSETTS ST DEV FIN AGY 5%, due Oct 1, 2038 | 0.04% | 0.04% | 0.04% |
| NEW JERSEY TRANSPORTATION TRUST FU 5.5%, due Jun 15, 2054 | 0.04% | 0.06% | 0.04% |
| NEW YORK N Y CITY TRANSITIONAL 5.5%, due May 1, 2050 | 0.04% | 0.05% | 0.04% |
| CALIFORNIA ST 5%, due Sep 1, 2032 | 0.03% | 0.09% | 0.03% |
| LOS ANGELES CALIF DEPT WTR & P 5%, due Jul 1, 2051 | 0.03% | 0.07% | 0.03% |
| MASSACHUSETTS ST DEV FIN AGY R 5%, due Oct 1, 2036 | 0.03% | 0.05% | 0.03% |
| SAN DIEGO CA UNIF SCH DIST 4%, due Jul 1, 2047 | 0.03% | 0.04% | 0.03% |
| DALLAS FORT WORTH TEX INTL ARP 5.25%, due Nov 1, 2048 | 0.03% | 0.04% | 0.03% |
| NEW YORK ST URBAN DEV CORP REV 5%, due Mar 15, 2047 | 0.03% | 0.10% | 0.03% |
| REGENTS OF THE UNIVERSITY OF CALIF 5%, due Nov 15, 2033 | 0.03% | 0.04% | 0.03% |
| RIVERSIDE CNTY CALIF TRANSN CO 4%, due Jun 1, 2046 | 0.03% | 0.06% | 0.03% |
| METROPOLITAN WASH D C ARPTS AU 5%, due Oct 1, 2044 | 0.03% | 0.04% | 0.03% |
| CHICAGO ILL O HARE INTL ARPT R 5%, due Jan 1, 2052 | 0.04% | 0.03% | 0.03% |
| MIAMI-DADE CNTY FLA SCH DIST 4%, due Mar 15, 2047 | 0.03% | 0.03% | 0.03% |
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.