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
109 holdings in all 2 funds| Fund | DFNM | MUB | Positions | Holdings |
|---|---|---|---|---|
| DFNMDimensional National Municipal Bond ETF | — | 1% 109 shared |
1,172 | as of Oct 20, 2026issuer data |
| MUBiShares National Muni Bond ETF | 1% 109 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
1.0% common weight| Holding | DFNM | MUB | Smallest |
|---|---|---|---|
| WISCONSIN 5.% 05/01/38, due May 1, 2038 | 0.24% | 0.06% | 0.06% |
| TX TRANSP 5.% 08/15/39, due Aug 15, 2039 | 0.07% | 0.05% | 0.05% |
| CALIFORNI 4.% 09/01/35, due Sep 1, 2035 | 0.21% | 0.04% | 0.04% |
| CALIFORNI 4.% 03/01/36, due Mar 1, 2036 | 0.12% | 0.04% | 0.04% |
| CALIFORNI 5.% 10/01/29, due Oct 1, 2029 | 0.19% | 0.03% | 0.03% |
| TRIBOROUG 5.% 11/15/28, due Nov 15, 2028 | 0.19% | 0.03% | 0.03% |
| ILLINOIS 5.% 09/01/44, due Sep 1, 2044 | 0.09% | 0.03% | 0.03% |
| BROWARD C 5.% 07/01/35, due Jul 1, 2035 | 0.05% | 0.03% | 0.03% |
| NEW JERSE 4.% 06/01/30, due Jun 1, 2030 | 0.02% | 0.07% | 0.02% |
| UNIV OF T 5.% 08/15/43, due Aug 15, 2043 | 0.34% | 0.02% | 0.02% |
| WA ST-SER 5.% 08/01/38, due Aug 1, 2038 | 0.17% | 0.02% | 0.02% |
| BETHEL SD 5.% 12/01/42, due Dec 1, 2042 | 0.09% | 0.02% | 0.02% |
| SER C-REF 5.% 06/01/27, due Jun 1, 2027 | 0.07% | 0.02% | 0.02% |
| DASNY-A-S 5.% 03/15/36, due Mar 15, 2036 | 0.19% | 0.02% | 0.02% |
| FRISCO IS 5.% 02/15/34, due Feb 15, 2034 | 0.16% | 0.02% | 0.02% |
| ILLINOIS 5.% 03/01/33, due Mar 1, 2033 | 0.06% | 0.02% | 0.02% |
| SALT RIVE 5.% 05/01/39, due May 1, 2039 | 0.22% | 0.02% | 0.02% |
| SC PUB SV 5.% 12/01/29, due Dec 1, 2029 | 0.16% | 0.02% | 0.02% |
| ENERGY NW 4.% 07/01/42, due Jul 1, 2042 | 0.06% | 0.02% | 0.02% |
| TRIBOROUG 5.% 11/15/43, due Nov 15, 2043 | 0.05% | 0.01% | 0.01% |
| LOS ANGEL 5.% 07/01/43, due Jul 1, 2043 | 0.07% | 0.01% | 0.01% |
| CALIFORNI 5.% 08/01/30, due Aug 1, 2030 | 0.05% | 0.01% | 0.01% |
| TEXAS ST- 5.% 10/01/32, due Oct 1, 2032 | 0.12% | 0.01% | 0.01% |
| MARYLAND 5.% 03/15/32, due Mar 15, 2032 | 0.09% | 0.01% | 0.01% |
| CONNECTIC 5.% 05/01/38, due May 1, 2038 | 0.02% | 0.01% | 0.01% |
| UNIV OF C 4.% 05/15/35, due May 15, 2035 | 0.08% | 0.01% | 0.01% |
| MASSACHUS 5.00% 08/01/41, due Aug 1, 2041 | 0.40% | 0.01% | 0.01% |
| DASNY-A-R 5.% 03/15/43, due Mar 15, 2043 | 0.14% | 0.01% | 0.01% |
| NY DORM 5% 03/15/41, due Mar 15, 2041 | 0.20% | 0.01% | 0.01% |
| UNIV TX S 5.% 08/15/39, due Aug 15, 2039 | 0.26% | 0.01% | 0.01% |
| NY ST URB 4.% 03/15/34, due Mar 15, 2034 | 0.18% | 0.01% | 0.01% |
| ILLINOI 5% 09/01/37, due Sep 1, 2037 | 0.08% | 0.01% | 0.01% |
| STATE OHI 5.% 09/15/37, due Sep 15, 2037 | 0.14% | 0.01% | 0.01% |
| MARYLAND 4.% 08/01/35, due Aug 1, 2035 | 0.05% | 0.01% | 0.01% |
| CALIFORNI 5% 08/01/30, due Aug 1, 2030 | 0.18% | 0.01% | 0.01% |
| SAN ANTON 5.% 02/01/44, due Feb 1, 2044 | 0.01% | 0.01% | 0.01% |
| WISCONSIN 4.% 05/01/41, due May 1, 2041 | 0.13% | 0.01% | 0.01% |
| ENERGY NW 5.% 07/01/28, due Jul 1, 2028 | 0.39% | 0.01% | 0.01% |
| NY ST DOR 5.% 03/15/42, due Mar 15, 2042 | 0.31% | 0.01% | 0.01% |
| UNIV OF TEXAS 5% 08/15/27, due Aug 15, 2027 | 0.19% | 0.01% | 0.01% |
| LEANDER I 5.% 08/15/27, due Aug 15, 2027 | 0.02% | 0.01% | 0.01% |
| PENNSYLVA 4.% 03/01/38, due Mar 1, 2038 | 0.16% | 0.01% | 0.01% |
| MIAMI-DAD 5.% 04/01/45, due Apr 1, 2045 | 0.02% | 0.01% | 0.01% |
| SALT RIVE 5.% 01/01/39, due Jan 1, 2039 | 0.09% | 0.01% | 0.01% |
| UNIV TX S 5.% 08/15/40, due Aug 15, 2040 | 0.12% | 0.01% | 0.01% |
| CALIFORNI 4.% 09/01/32, due Sep 1, 2032 | 0.04% | 0.01% | 0.01% |
| PORT AUTHO 5% 12/01/2037, due Dec 1, 2037 | 0.01% | 0.01% | 0.01% |
| TX TRANSP 5.% 10/01/35, due Oct 1, 2035 | 0.10% | 0.01% | 0.01% |
| MARYLAND- 5.% 08/01/29, due Aug 1, 2029 | 0.05% | 0.01% | 0.01% |
| NEW YORK- 5.% 10/01/36, due Oct 1, 2036 | 0.14% | 0.01% | 0.01% |
| WISCONSIN 5.% 11/01/26, due Nov 1, 2026 | 0.07% | 0.01% | 0.01% |
| SALT RV 5% 01/01/28, due Jan 1, 2028 | 0.21% | 0.01% | 0.01% |
| NORTH CAR 5.% 03/01/33, due Mar 1, 2033 | 0.02% | 0.01% | 0.01% |
| SAN ANTONIO 5% 02/01/2027, due Feb 1, 2027 | 0.23% | 0.01% | 0.01% |
| CHICAGO T 5.% 12/01/41, due Dec 1, 2041 | 0.07% | 0.01% | 0.01% |
| MULTNOMAH 5.% 06/15/27, due Jun 15, 2027 | 0.03% | 0.01% | 0.01% |
| GEORGIA S 5.% 07/01/36, due Jul 1, 2036 | 0.07% | 0.01% | 0.01% |
| NEW JERSE 5.% 06/01/28, due Jun 1, 2028 | 0.01% | 0.11% | 0.01% |
| N TX TOLL 5.% 01/01/39, due Jan 1, 2039 | 0.14% | 0.01% | 0.01% |
| OMAHA PUB 5.% 02/01/27, due Feb 1, 2027 | 0.06% | 0.01% | 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.