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
374 holdings in all 2 funds| Fund | CMF | PWZ | Positions | Holdings |
|---|---|---|---|---|
| CMFiShares California Muni Bond ETF | — | 18% 374 shared |
1,840 | as of Oct 20, 2026issuer data |
| PWZInvesco California AMT-Free Municipal Bond ETF | 18% 374 shared | — | 1,158 | as of May 31, 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
17.5% common weight| Holding | CMF | PWZ | Smallest |
|---|---|---|---|
| CALIFORNIA EDL FACS AUTH REV 5%, due May 1, 2045 | 0.36% | 0.42% | 0.36% |
| CALIFORNIA ST 5%, due Mar 1, 2055 | 0.31% | 0.34% | 0.31% |
| CALIFORNIA ST UNIV REV 5.5%, due Nov 1, 2055 | 0.35% | 0.28% | 0.28% |
| CALIFORNIA ST 4%, due Sep 1, 2043 | 0.23% | 0.30% | 0.23% |
| FOOTHILL / EASTERN TRANSN CORR 4%, due Jan 15, 2046 | 0.22% | 0.45% | 0.22% |
| CALIFORNIA ST 5%, due Oct 1, 2056 | 0.20% | 0.22% | 0.20% |
| SAN DIEGO CALIF UNI SCH DIST 4%, due Jul 1, 2053 | 0.20% | 0.26% | 0.20% |
| LOS ANGELES CALIF UNI SCH DIST 5.25%, due Jul 1, 2048 | 0.20% | 0.34% | 0.20% |
| LOS ANGELES CALIF UNI SCH DIST 5%, due Jul 1, 2049 | 0.20% | 0.18% | 0.18% |
| CALIFORNIA ST 5%, due Oct 1, 2042 | 0.19% | 0.18% | 0.18% |
| CALIFORNIA EDL FACS AUTH REV 5%, due May 1, 2049 | 0.17% | 0.54% | 0.17% |
| CALIFORNIA ST 4%, due Oct 1, 2041 | 0.17% | 0.17% | 0.17% |
| SAN DIEGO CALIF CMNTY COLLEGE 4%, due Aug 1, 2050 | 0.15% | 0.25% | 0.15% |
| CALIFORNIA ST 5.25%, due Oct 1, 2051 | 0.14% | 0.26% | 0.14% |
| CALIFORNIA EDL FACS AUTH REV 5%, due Jun 1, 2043 | 0.14% | 0.33% | 0.14% |
| CALIFORNIA ST 5.25%, due Sep 1, 2053 | 0.14% | 0.28% | 0.14% |
| UNIVERSITY CALIF REVS 3%, due May 15, 2051 | 0.14% | 0.14% | 0.14% |
| LOS ANGELES CALIF DEPT WTR & P 5%, due Jul 1, 2047 | 0.18% | 0.14% | 0.14% |
| CALIFORNIA EDL FACS AUTH REV 5%, due Oct 1, 2055 | 0.14% | 0.58% | 0.14% |
| GLENDALE CALIF CMNTY COLLEGE D 4%, due Aug 1, 2050 | 0.13% | 0.19% | 0.13% |
| CALIFORNIA ST 5%, due Nov 1, 2042 | 0.13% | 0.16% | 0.13% |
| CALIFORNIA ST EDUCTNL FACS AUTH RE 5%, due Apr 1, 2051 | 0.13% | 0.21% | 0.13% |
| SAN FRANCISCO CALIF CITY & CNT 5%, due Oct 1, 2054 | 0.12% | 0.40% | 0.12% |
| UNIVERSITY CALIF REVS 4%, due May 15, 2047 | 0.12% | 0.18% | 0.12% |
| SOUTHERN CALIF PUB PWR AUTH SO 5%, due Jul 1, 2053 | 0.12% | 0.15% | 0.12% |
| VISTA CALIF UNI SCH DIST 5.25%, due Aug 1, 2048 | 0.12% | 0.16% | 0.12% |
| UNIVERSITY CALIF REVS 5%, due May 15, 2052 | 0.12% | 0.39% | 0.12% |
| UNIVERSITY CALIF REVS 5%, due May 15, 2043 | 0.11% | 0.22% | 0.11% |
| SAN FRANCISCO CALIF CITY & CNT 5%, due May 1, 2043 | 0.12% | 0.10% | 0.10% |
| AIRPORT COMMISSION OF THE CITY AND 5%, due May 1, 2046 | 0.10% | 0.12% | 0.10% |
| SAN DIEGO CALIF UNI SCH DIST 3%, due Jul 1, 2050 | 0.11% | 0.10% | 0.10% |
| METROPOLITAN WTR DIST SOUTHN C 5%, due Apr 1, 2049 | 0.12% | 0.10% | 0.10% |
| SOUTHERN CALIF PUB PWR AUTH SO 5%, due Jul 1, 2049 | 0.11% | 0.10% | 0.10% |
| RIVERSIDE CNTY CALIF TRANSN CO 4%, due Jun 1, 2046 | 0.10% | 0.16% | 0.10% |
| CALIFORNIA INFRASTRUCTURE & EC 5%, due Aug 1, 2049 | 0.10% | 0.13% | 0.10% |
| CALIFORNIA ST 5%, due Sep 1, 2043 | 0.10% | 0.14% | 0.10% |
| CALIFORNIA ST 5.25%, due Sep 1, 2047 | 0.10% | 0.15% | 0.10% |
| CALIFORNIA ST 5%, due Sep 1, 2042 | 0.10% | 0.14% | 0.10% |
| LOS ANGELES CALIF WASTEWATER S 5%, due Jun 1, 2055 | 0.10% | 0.21% | 0.10% |
| CALIFORNIA ST 5%, due Oct 1, 2047 | 0.10% | 0.14% | 0.10% |
| SANTA MONICA-MALIBU UNI SCH DIST C 5%, due Aug 1, 2055 | 0.10% | 0.12% | 0.10% |
| CALIFORNIA INFRASTRUCTURE & EC 4.5%, due May 15, 2055 | 0.10% | 0.13% | 0.10% |
| LOS ANGELES CNTY CALIF FACS 2, due Jun 1, 2049 | 0.11% | 0.10% | 0.10% |
| SAN DIEGO CA UNIF SCH DIST 4%, due Jul 1, 2047 | 0.10% | 0.32% | 0.10% |
| SAN DIEGO CALIF CMNTY COLLEGE 5%, due Aug 1, 2055 | 0.10% | 0.43% | 0.10% |
| RIVERSIDE CNTY CALIF TRANSN CO 3%, due Jun 1, 2049 | 0.10% | 0.14% | 0.10% |
| SAN DIEGO CALIF PUB FACS FING 5%, due May 15, 2054 | 0.12% | 0.10% | 0.10% |
| SOUTHERN CALIF PUB PWR AUTH SO 5%, due Jul 1, 2050 | 0.09% | 0.14% | 0.09% |
| UNIVERSITY CALIF REVS FOR PREV 5.25%, due May 15, 2042 | 0.10% | 0.09% | 0.09% |
| PERALTA CALIF CMNTY COLLEGE DI 5%, due Aug 1, 2050 | 0.10% | 0.09% | 0.09% |
| BAY AREA TOLL AUTH CALIF TOLL 4%, due Apr 1, 2042 | 0.09% | 0.32% | 0.09% |
| CALIFORNIA MUN FIN AUTH REV 5.5%, due Sep 1, 2060 | 0.10% | 0.09% | 0.09% |
| MOUNT SAN ANTONIO CALIF CMNTY 4%, due Aug 1, 2049 | 0.17% | 0.09% | 0.09% |
| CALIFORNIA INFRASTRUCTURE & EC 4%, due Oct 1, 2045 | 0.09% | 0.10% | 0.09% |
| SAN DIEGO CALIF UNI SCH DIST 4%, due Jul 1, 2050 | 0.09% | 0.10% | 0.09% |
| LOS ANGELES CALIF DEPT WTR & P 5%, due Jul 1, 2043 | 0.08% | 0.19% | 0.08% |
| CALIFORNIA ST DEPT WTR RES CEN 5%, due Dec 1, 2056 | 0.08% | 0.19% | 0.08% |
| UNIVERSITY CALIF REVS 5%, due May 15, 2041 | 0.08% | 0.11% | 0.08% |
| UNIVERSITY CALIF REVS 5%, due May 15, 2043 | 0.08% | 0.14% | 0.08% |
| SACRAMENTO CNTY CALIF SANTN DI 5%, due Dec 1, 2050 | 0.08% | 0.08% | 0.08% |
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.