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
2515 holdings in all 2 funds| Fund | MUB | SCMB | Positions | Holdings |
|---|---|---|---|---|
| MUBiShares National Muni Bond ETF | — | 21% 2515 shared |
7,603 | as of Oct 20, 2026issuer data |
| SCMBSchwab Municipal Bond ETF | 21% 2515 shared | — | 6,845 | 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
20.9% common weight| Holding | MUB | SCMB | Smallest |
|---|---|---|---|
| CALIFORNIA ST 5%, due Sep 1, 2031 | 0.10% | 0.15% | 0.10% |
| CHICAGO ILL TRAN AUTH SALES TA 5%, due Dec 1, 2049 | 0.09% | 0.14% | 0.09% |
| NEW YORK ST DORM AUTH REVS NON 5.5%, due Jul 1, 2054 | 0.08% | 0.08% | 0.08% |
| NEW JERSEY ST TRANSN TR FD AUTH, due Dec 15, 2032 | 0.07% | 0.11% | 0.07% |
| MASSACHUSETTS ST 5%, due May 1, 2048 | 0.07% | 0.09% | 0.07% |
| OHIO ST UNIV GEN RCPTS 5%, due Jun 1, 2035 | 0.11% | 0.07% | 0.07% |
| WASHINGTON ST 4%, due Jul 1, 2027 | 0.06% | 0.10% | 0.06% |
| JEFFERSON CNTY ALA SWR REV 5.25%, due Oct 1, 2049 | 0.06% | 0.07% | 0.06% |
| MARYLAND ST 5%, due Mar 15, 2038 | 0.06% | 0.13% | 0.06% |
| NEW YORK ST DORM AUTH ST PERS 4%, due Feb 15, 2047 | 0.10% | 0.06% | 0.06% |
| METROPOLITAN GOVT NASHVILLE & 5%, due Jan 1, 2036 | 0.07% | 0.06% | 0.06% |
| UNIVERSITY CALIF REVS 4%, due May 15, 2047 | 0.06% | 0.07% | 0.06% |
| NEW YORK ST DORM AUTH ST PERS 5%, due Mar 15, 2031 | 0.05% | 0.09% | 0.05% |
| CALIFORNIA ST PUB WKS BRD LEAS 5%, due Apr 1, 2049 | 0.05% | 0.15% | 0.05% |
| BATTERY PK CITY AUTH N Y REV 5%, due Nov 1, 2053 | 0.06% | 0.05% | 0.05% |
| PENNSYLVANIA ST 4%, due Sep 1, 2040 | 0.05% | 0.11% | 0.05% |
| ILLINOIS ST 5%, due Dec 1, 2040 | 0.06% | 0.05% | 0.05% |
| NEW JERSEY ST 5%, due Jun 1, 2028 | 0.11% | 0.05% | 0.05% |
| OKLAHOMA TRANSN AUTH OK F/K/A 5.5%, due Jan 1, 2054 | 0.05% | 0.08% | 0.05% |
| TRIBOROUGH BRDG & TUNL AUTH N 5%, due May 15, 2051 | 0.09% | 0.05% | 0.05% |
| NEW JERSEY ST 4%, due Jun 1, 2030 | 0.07% | 0.05% | 0.05% |
| NEW YORK N Y 5%, due Aug 1, 2029 | 0.05% | 0.20% | 0.05% |
| NEW JERSEY ST EDL FACS AUTH RE 5%, due Mar 1, 2043 | 0.07% | 0.05% | 0.05% |
| LOUISVILLE & JEFFERSON CNTY KY 5%, due May 15, 2037 | 0.05% | 0.15% | 0.05% |
| CHICAGO ILL O HARE INTL ARPT R 5%, due Jan 1, 2048 | 0.05% | 0.07% | 0.05% |
| LOS ANGELES CALIF UNI SCH DIST 5%, due Jul 1, 2032 | 0.05% | 0.07% | 0.05% |
| NEW YORK ST URBAN DEV CORP REV 5%, due Mar 15, 2036 | 0.05% | 0.14% | 0.05% |
| WASHINGTON ST 5%, due Aug 1, 2034 | 0.05% | 0.11% | 0.05% |
| TEXAS TRANSN FIN CORP SH 288 S, due Oct 1, 2055 | 0.06% | 0.05% | 0.05% |
| SALT RIV PROJ AGRIC IMPT & PWR 5.25%, due Jan 1, 2055 | 0.05% | 0.07% | 0.05% |
| CONTRA COSTA CALIF CMNTY COLLE 4%, due Aug 1, 2039 | 0.05% | 0.10% | 0.05% |
| ILLINOIS ST 5%, due Nov 1, 2027 | 0.10% | 0.05% | 0.05% |
| TEXAS TRANSN FIN CORP SH 288 S, due Oct 1, 2050 | 0.06% | 0.05% | 0.05% |
| NEW YORK N Y CITY TRANSITIONAL 5%, due Nov 1, 2034 | 0.06% | 0.04% | 0.04% |
| SAN ANTONIO TEX ELEC & GAS REV 5%, due Feb 1, 2039 | 0.04% | 0.10% | 0.04% |
| LOS ANGELES CALIF DEPT WTR & P 5%, due Jul 1, 2030 | 0.04% | 0.05% | 0.04% |
| NEW JERSEY ECONOMIC DEV AUTH R 5%, due Mar 1, 2028 | 0.06% | 0.04% | 0.04% |
| NEW JERSEY ST 5%, due Jun 1, 2029 | 0.04% | 0.05% | 0.04% |
| PRIVATE COLLEGES & UNIVS AUTH 5%, due Sep 1, 2033 | 0.04% | 0.14% | 0.04% |
| TEXAS WTR DEV BRD REV 4.75%, due Oct 15, 2055 | 0.04% | 0.05% | 0.04% |
| GRAND PARKWAY TRANSN CORP TEX 4%, due Oct 1, 2049 | 0.04% | 0.04% | 0.04% |
| CALIFORNIA ST 5%, due Nov 1, 2043 | 0.04% | 0.04% | 0.04% |
| NEW JERSEY ST TPK AUTH TPK REV 4%, due Jan 1, 2048 | 0.04% | 0.05% | 0.04% |
| NEW JERSEY ST TPK AUTH TPK REV 5%, due Jan 1, 2043 | 0.05% | 0.04% | 0.04% |
| CALIFORNIA ST 4%, due Mar 1, 2036 | 0.04% | 0.10% | 0.04% |
| CHICAGO ILL O HARE INTL ARPT R 5%, due Jan 1, 2052 | 0.04% | 0.05% | 0.04% |
| CALIFORNIA ST 5%, due Nov 1, 2045 | 0.04% | 0.04% | 0.04% |
| JEFFERSON CNTY ALA SWR REV 5.5%, due Oct 1, 2053 | 0.04% | 0.06% | 0.04% |
| GRAND PARKWAY TRANSN CORP TEX 4%, due Oct 1, 2045 | 0.04% | 0.04% | 0.04% |
| DALLAS TEX INDPT SCH DIST 5%, due Feb 15, 2042 | 0.04% | 0.08% | 0.04% |
| HAYS TEX CONS INDPT SCH DIST 5.25%, due Feb 15, 2050 | 0.04% | 0.04% | 0.04% |
| ILLINOIS ST 5%, due Nov 1, 2029 | 0.04% | 0.06% | 0.04% |
| MASSACHUSETTS ST DEV FIN AGY 5%, due Oct 1, 2038 | 0.04% | 0.07% | 0.04% |
| NEW JERSEY ST TRANSN TR FD AUTH, due Dec 15, 2033 | 0.04% | 0.08% | 0.04% |
| NEW JERSEY ST 5%, due Jun 1, 2027 | 0.04% | 0.04% | 0.04% |
| FOOTHILL / EASTERN TRANSN CORR 4%, due Jan 15, 2046 | 0.06% | 0.04% | 0.04% |
| MEDINA VALLEY TEX INDPT SCH DI 4%, due Feb 15, 2053 | 0.06% | 0.04% | 0.04% |
| BATTERY PARK CITY AUTHORITY N Y 5.25%, due Nov 1, 2055 | 0.04% | 0.04% | 0.04% |
| NORTHWEST TEX INDPT SCH DIST 5%, due Feb 15, 2048 | 0.04% | 0.12% | 0.04% |
| SALT RIV PROJ AGRIC IMPT & PWR 5.25%, due Jan 1, 2053 | 0.06% | 0.04% | 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.