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
273 holdings in all 2 funds| Fund | JMST | SUB | Positions | Holdings |
|---|---|---|---|---|
| JMSTJPMorgan Ultra-Short Municipal Income ETF | — | 3% 273 shared |
1,985 | as of Oct 20, 2026issuer data |
| SUBiShares Short-Term National Muni Bond ETF | 3% 273 shared | — | 3,050 | as of Oct 19, 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
2.7% common weight| Holding | JMST | SUB | Smallest |
|---|---|---|---|
| ILLINOIS ST GO 5% 11/26, due Nov 1, 2026 | 0.25% | 0.14% | 0.14% |
| ILLINOIS ST GO 5% 11/29, due Nov 1, 2029 | 0.11% | 0.13% | 0.11% |
| ILLINOIS ST GO 5% 11/28, due Nov 1, 2028 | 0.15% | 0.10% | 0.10% |
| NEW YORK N Y GO 5% 08/30, due Aug 1, 2030 | 0.09% | 0.18% | 0.09% |
| MESA ARIZ UTIL 5% 07/31, due Jul 1, 2031 | 0.07% | 0.08% | 0.07% |
| NEW JERSEY ST ZERO 12/30, due Dec 15, 2030 | 0.07% | 0.08% | 0.07% |
| NEW YORK N Y 5% 11/30, due Nov 1, 2030 | 0.05% | 0.18% | 0.05% |
| CURATORS UNIV MO 5% 11/26, due Nov 1, 2026 | 0.04% | 0.05% | 0.04% |
| WASHINGTON ST 5% 08/30, due Aug 1, 2030 | 0.13% | 0.04% | 0.04% |
| CONNECTICUT ST 5% 09/31, due Sep 15, 2031 | 0.10% | 0.04% | 0.04% |
| ILLINOIS ST GO 5% 07/28, due Jul 1, 2028 | 0.04% | 0.10% | 0.04% |
| TEXAS ST UNIV 5% 03/29, due Mar 15, 2029 | 0.08% | 0.04% | 0.04% |
| NEW YORK ST DORM 5% 10/29, due Oct 1, 2029 | 0.10% | 0.04% | 0.04% |
| CYPRESS-FAIRBANK 5% 02/29, due Feb 15, 2029 | 0.14% | 0.04% | 0.04% |
| CONNECTICUT ST 5% 07/27, due Jul 1, 2027 | 0.06% | 0.04% | 0.04% |
| DISTRICT 5% 12/27, due Dec 1, 2027 | 0.07% | 0.04% | 0.04% |
| NORTH TEX TWY 5% 01/29, due Jan 1, 2029 | 0.06% | 0.04% | 0.04% |
| CONNECTICUT ST 5% 12/26, due Dec 1, 2026 | 0.18% | 0.04% | 0.04% |
| COUNTY OF CLARK 5% 11/27, due Nov 1, 2027 | 0.04% | 0.12% | 0.04% |
| NEW YORK N Y 5% 11/29, due Nov 1, 2029 | 0.04% | 0.08% | 0.04% |
| WISCONSIN ST 5% 07/29, due Jul 1, 2029 | 0.04% | 0.03% | 0.03% |
| ENERGY NORTHWEST 5% 07/29, due Jul 1, 2029 | 0.05% | 0.03% | 0.03% |
| TEXAS ST TRANSN 5% 10/28, due Oct 1, 2028 | 0.11% | 0.03% | 0.03% |
| MARYLAND ST ST 5% 03/28, due Mar 15, 2028 | 0.04% | 0.03% | 0.03% |
| NEW YORK N Y 5% 11/29, due Nov 1, 2029 | 0.03% | 0.03% | 0.03% |
| NORTH TEX TWY 5% 01/30, due Jan 1, 2030 | 0.03% | 0.09% | 0.03% |
| ILLINOIS ST GO 5% 11/27, due Nov 1, 2027 | 0.02% | 0.15% | 0.02% |
| ENERGY NORTHWEST 5% 07/27, due Jul 1, 2027 | 0.09% | 0.02% | 0.02% |
| CLARK CNTY NEV 5% 06/27, due Jun 15, 2027 | 0.38% | 0.02% | 0.02% |
| VIRGINIA COLLEGE 5% 02/30, due Feb 1, 2030 | 0.02% | 0.06% | 0.02% |
| NORTH TEX TWY 5% 01/27, due Jan 1, 2027 | 0.02% | 0.06% | 0.02% |
| NEW YORK N Y 5% 07/31, due Jul 15, 2031 | 0.02% | 0.12% | 0.02% |
| NEW YORK N Y 5% 11/30, due Nov 1, 2030 | 0.03% | 0.02% | 0.02% |
| CONNECTICUT ST 5% 08/27, due Aug 15, 2027 | 0.29% | 0.02% | 0.02% |
| CONNECTICUT ST 5% 09/30, due Sep 15, 2030 | 0.02% | 0.03% | 0.02% |
| ATLANTA GA WTR & 5% 11/30, due Nov 1, 2030 | 0.06% | 0.02% | 0.02% |
| NEW YORK N Y 5% 11/28, due Nov 1, 2028 | 0.03% | 0.02% | 0.02% |
| PLANO TEX INDPT 5% 02/28, due Feb 15, 2028 | 0.11% | 0.02% | 0.02% |
| NEW YORK N Y 5% 11/28, due Nov 1, 2028 | 0.08% | 0.02% | 0.02% |
| ADAMS & 5.5% 12/26, due Dec 1, 2026 | 0.05% | 0.02% | 0.02% |
| CURATORS UNIV MO 5% 11/28, due Nov 1, 2028 | 0.02% | 0.03% | 0.02% |
| ALABAMA ST HWY 5% 09/28, due Sep 1, 2028 | 0.02% | 0.04% | 0.02% |
| SAN ANTONIO TEX 5% 02/29, due Feb 1, 2029 | 0.02% | 0.04% | 0.02% |
| CALIFORNIA ST 5% 04/27, due Apr 1, 2027 | 0.03% | 0.02% | 0.02% |
| MAINE ST TPK 5% 07/30, due Jul 1, 2030 | 0.02% | 0.03% | 0.02% |
| CONNECTICUT ST 5% 07/28, due Jul 1, 2028 | 0.11% | 0.02% | 0.02% |
| LOWER COLO RIV 5% 05/30, due May 15, 2030 | 0.05% | 0.02% | 0.02% |
| ILLINOIS ST GO 5% 02/27, due Feb 1, 2027 | 0.02% | 0.06% | 0.02% |
| HUMBLE TEX INDPT 5% 02/27, due Feb 15, 2027 | 0.02% | 0.02% | 0.02% |
| PENNSYLVANIA ST 5% 09/27, due Sep 15, 2027 | 0.08% | 0.02% | 0.02% |
| DISTRICT 5% 06/29, due Jun 1, 2029 | 0.03% | 0.02% | 0.02% |
| KANSAS ST DEPT 5% 09/27, due Sep 1, 2027 | 0.03% | 0.02% | 0.02% |
| ARIZONA WTR 5% 10/27, due Oct 1, 2027 | 0.07% | 0.02% | 0.02% |
| NEBRASKA PUB PWR 5% 07/28, due Jul 1, 2028 | 0.22% | 0.02% | 0.02% |
| PALM COAST FLA 5% 10/30, due Oct 1, 2030 | 0.04% | 0.01% | 0.01% |
| DALLAS TEX 5% 10/27, due Oct 1, 2027 | 0.03% | 0.01% | 0.01% |
| NEW JERSEY ST 5% 06/28, due Jun 15, 2028 | 0.01% | 0.04% | 0.01% |
| ILLINOIS ST GO 5% 05/28, due May 1, 2028 | 0.01% | 0.02% | 0.01% |
| PHILADELPHIA PA 5% 09/27, due Sep 1, 2027 | 0.06% | 0.01% | 0.01% |
| ILLINOIS ST GO 5% 02/29, due Feb 1, 2029 | 0.01% | 0.03% | 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.