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
42 holdings in all 2 funds| Fund | CGSM | JMST | Positions | Holdings |
|---|---|---|---|---|
| CGSMCapital Group Short Duration Municipal Income ETF | — | 2% 42 shared |
1,100 | as of Oct 20, 2026issuer data |
| JMSTJPMorgan Ultra-Short Municipal Income ETF | 2% 42 shared | — | 2,000 | as of Oct 21, 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
1.5% common weight| Holding | CGSM | JMST | Smallest |
|---|---|---|---|
| AKRON BATH COPLEY JT TWP OH HO AKRMED 11/46 FIXED 5.25, due Nov 15, 2046 | 0.15% | 0.30% | 0.15% |
| CALIFORNIA ST POLL CONTROL FIN CASPOL 07/43 ADJUSTABLE VAR, due Jul 15, 2043 | 0.38% | 0.12% | 0.12% |
| LOS ANGELES CA LOS 06/27 FIXED 5, due Jun 15, 2027 | 0.12% | 0.15% | 0.12% |
| HOUSTON TX INDEP SCH DIST HOUSCD 02/27 FIXED 5, due Feb 15, 2027 | 0.14% | 0.09% | 0.09% |
| TEXAS ST TXS 10/28 FIXED 5, due Oct 15, 2028 | 0.09% | 0.11% | 0.09% |
| NEW YORK CITY NY TRANSITIONAL NYCGEN 11/28 FIXED 5, due Nov 15, 2028 | 0.07% | 0.08% | 0.07% |
| COMAL TX INDEP SCH DIST COMSCD 02/27 FIXED 5, due Feb 15, 2027 | 0.07% | 0.08% | 0.07% |
| NEW YORK ST DORM AUTH ST PERSO NYSGEN 03/31 FIXED 5, due Mar 15, 2031 | 0.06% | 0.12% | 0.06% |
| TEXAS ST MUNI GAS ACQUISITION TMGUTL 01/54 ADJUSTABLE VAR, due Jan 15, 2054 | 0.06% | 0.28% | 0.06% |
| NEW YORK NY NYC 08/30 FIXED 5, due Aug 15, 2030 | 0.19% | 0.05% | 0.05% |
| HOUSTON TX ARPT SYS REVENUE HOUAPT 07/27 FIXED 5, due Jul 15, 2027 | 0.09% | 0.05% | 0.05% |
| ARIZONA ST INDL DEV AUTH NATIO AZSEDU 11/27 FIXED 4, due Nov 15, 2027 | 0.06% | 0.05% | 0.05% |
| BLACK BELT ENERGY GAS DIST AL BBEUTL 12/31 FIXED 5, due Dec 15, 2031 | 0.05% | 0.30% | 0.05% |
| MICHIGAN ST HOSP FIN AUTH MISMED 11/47 FIXED 4, due Nov 15, 2047 | 0.06% | 0.04% | 0.04% |
| CMWLTH FING AUTH PA TOBACCO MA CMNGEN 06/30 FIXED 5, due Jun 15, 2030 | 0.12% | 0.04% | 0.04% |
| ILLINOIS ST FIN AUTH REVENUE ILSGEN 02/41 FIXED 5, due Feb 15, 2041 | 0.04% | 0.06% | 0.04% |
| NEW YORK CITY NY TRANSITIONAL NYCGEN 11/29 FIXED 5, due Nov 15, 2029 | 0.05% | 0.04% | 0.04% |
| ARLINGTON CNTY VA INDL DEV AUT ARLMFH 12/55 ADJUSTABLE VAR, due Dec 15, 2055 | 0.04% | 0.07% | 0.04% |
| AQUARION WTR AUTH CT WTR SYS R AQUWTR 02/29 FIXED 5.25, due Feb 15, 2029 | 0.07% | 0.04% | 0.04% |
| NEW YORK CITY NY TRANSITIONAL NYCGEN 11/28 FIXED 5, due Nov 15, 2028 | 0.05% | 0.03% | 0.03% |
| LOUISA VA INDL DEV AUTH POLL C LOUPOL 11/35 ADJUSTABLE VAR, due Nov 15, 2035 | 0.06% | 0.02% | 0.02% |
| ALLEN TX INDEP SCH DIST ALLSCD 02/27 FIXED 5, due Feb 15, 2027 | 0.02% | 0.10% | 0.02% |
| MICHIGAN ST STRATEGIC FUND LTD MISGEN 10/49 ADJUSTABLE VAR, due Oct 15, 2049 | 0.13% | 0.02% | 0.02% |
| HARRIS CNTY TX HLTH FACS DEV C HARMED 07/27 FIXED OID 5.75, due Jul 15, 2027 | 0.28% | 0.02% | 0.02% |
| TRIBOROUGH NY BRIDGE TUNNEL TRBTRN 11/31 FIXED 5, due Nov 15, 2031 | 0.10% | 0.02% | 0.02% |
| INDIANA ST FIN AUTH REVENUE INSFIN 11/28 FIXED 5, due Nov 15, 2028 | 0.05% | 0.02% | 0.02% |
| LEE CNTY FL ARPT REVENUE LEEAPT 10/56 ADJUSTABLE VAR, due Oct 15, 2056 | 0.03% | 0.02% | 0.02% |
| NORTH CAROLINA ST LTD OBLIG NCSGEN 05/27 FIXED 5, due May 15, 2027 | 0.05% | 0.02% | 0.02% |
| NEW YORK CITY NY INDL DEV AGY NYCDEV 01/28 FIXED 5, due Jan 15, 2028 | 0.08% | 0.02% | 0.02% |
| COLORADO ST HLTH FACS AUTH REV COSMED 06/47 FIXED 5, due Jun 15, 2047 | 0.06% | 0.01% | 0.01% |
| HOUSTON TX UTILITY SYS REVENUE HOUUTL 11/26 FIXED 5, due Nov 15, 2026 | 0.01% | 0.01% | 0.01% |
| NEW JERSEY ST TRANSPRTN TRUST NJSTRN 12/28 ZEROCPNOID 0, due Dec 15, 2028 | 0.24% | 0.01% | 0.01% |
| ILLINOIS ST FIN AUTH REVENUE ILSGEN 01/30 FIXED 5, due Jan 15, 2030 | 0.03% | 0.00% | 0.00% |
| NEW YORK CITY NY TRANSITIONAL NYCGEN 02/29 FIXED 5, due Feb 15, 2029 | 0.12% | 0.00% | 0.00% |
| MICHIGAN ST HSG DEV AUTH RENTA MISHSG 04/30 FIXED 3.7, due Apr 15, 2030 | 0.00% | 0.17% | 0.00% |
| MET PIER EXPOSITION AUTH IL MPNFAC 06/29 ZEROCPNOID 0, due Jun 15, 2029 | 0.00% | 0.18% | 0.00% |
| NEW MEXICO ST NMS 03/27 FIXED 5, due Mar 15, 2027 | 0.15% | 0.00% | 0.00% |
| NEW YORK NY NYC 08/27 FIXED 5, due Aug 15, 2027 | 0.06% | 0.00% | 0.00% |
| MASSACHUSETTS ST DEPT OF TRANS MASTRN 01/27 FIXED 5, due Jan 15, 2027 | 0.09% | 0.00% | 0.00% |
| MARYLAND ST MDS 08/29 FIXED 5, due Aug 15, 2029 | 0.21% | 0.00% | 0.00% |
| TRIBOROUGH NY BRIDGE TUNNEL TRBTRN 02/28 FIXED 5, due Feb 15, 2028 | 0.79% | 0.00% | 0.00% |
| WISCONSIN ST WIS 05/28 FIXED 5, due May 15, 2028 | 0.14% | 0.00% | 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.