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
53 holdings in all 2 funds| Fund | CATF | VTEC | Positions | Holdings |
|---|---|---|---|---|
| CATFAmerican Century California Municipal Bond ETF | — | 3% 53 shared |
287 | as of May 31, 2026SEC filing |
| VTECVanguard California Tax-Exempt Bond ETF | 3% 53 shared | — | 3,993 | 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
2.8% common weight| Holding | CATF | VTEC | Smallest |
|---|---|---|---|
| State of California 4%, due Sep 1, 2043 | 0.97% | 0.24% | 0.24% |
| State of California 4%, due Mar 1, 2036 | 0.26% | 0.22% | 0.22% |
| Los Angeles Department of Water & Power Water System Revenue 5%, due Jan 1, 2030 | 0.34% | 0.20% | 0.20% |
| Foothill-Eastern Transportation Corridor Agency 4%, due Jan 15, 2046 | 0.50% | 0.18% | 0.18% |
| UNIVERSITY OF CALIFORNIA 5%, due May 15, 2053 | 0.68% | 0.17% | 0.17% |
| UNIVERSITY OF CALIFORNIA 5%, due May 15, 2029 | 0.28% | 0.15% | 0.15% |
| State of California 5%, due Mar 1, 2055 | 0.14% | 0.20% | 0.14% |
| PRG - POTRERO PROPERTIES 5%, due Jun 30, 2032 | 0.35% | 0.13% | 0.13% |
| California State Public Works Board 5%, due Sep 1, 2033 | 0.74% | 0.12% | 0.12% |
| San Francisco City & County Public Utilities Commission Wastewater Revenue 4%, due Oct 1, 2048 | 0.53% | 0.10% | 0.10% |
| UNIVERSITY OF CALIFORNIA 5%, due May 15, 2037 | 0.53% | 0.09% | 0.09% |
| Southern California Public Power Authority 5%, due Jul 1, 2048 | 0.13% | 0.08% | 0.08% |
| Riverside County Transportation Commission 4%, due Jun 1, 2046 | 1.04% | 0.08% | 0.08% |
| Alameda Corridor Transportation Authority 5%, due Oct 1, 2037 | 0.58% | 0.07% | 0.07% |
| Southern California Public Power Authority 5.25%, due Jul 1, 2053 | 0.34% | 0.07% | 0.07% |
| City of Los Angeles Department of Airports 5%, due May 15, 2048 | 0.41% | 0.06% | 0.06% |
| Los Angeles County Public Works Financing Authority 5.5%, due Dec 1, 2049 | 0.21% | 0.06% | 0.06% |
| UNIVERSITY OF CALIFORNIA 5.25%, due May 15, 2040 | 0.37% | 0.05% | 0.05% |
| State of California 5.25%, due Aug 1, 2055 | 0.15% | 0.05% | 0.05% |
| Sacramento Municipal Utility District 5%, due Nov 15, 2054 | 0.49% | 0.05% | 0.05% |
| Foothill-Eastern Transportation Corridor Agency 4%, due Jan 15, 2043 | 0.26% | 0.04% | 0.04% |
| State of California Department of Water Resources 5%, due Dec 1, 2051 | 0.48% | 0.04% | 0.04% |
| San Diego Public Facilities Financing Authority 5%, due May 15, 2054 | 0.61% | 0.04% | 0.04% |
| Los Angeles Department of Water & Power 5%, due Jul 1, 2042 | 0.35% | 0.04% | 0.04% |
| Sacramento Municipal Utility District 5%, due Aug 15, 2049 | 0.37% | 0.04% | 0.04% |
| San Joaquin Hills Transportation Corridor Agency 4%, due Jan 15, 2034 | 0.20% | 0.03% | 0.03% |
| California State University 3.125%, due Nov 1, 2051 | 0.24% | 0.03% | 0.03% |
| UNIVERSITY OF CALIFORNIA 5%, due May 15, 2048 | 0.30% | 0.03% | 0.03% |
| Bay Area Toll Authority 4%, due Apr 1, 2030 | 0.62% | 0.03% | 0.03% |
| County of Sacramento CA Airport System Revenue 5.25%, due Jul 1, 2054 | 0.51% | 0.02% | 0.02% |
| CHF-IRVINE LLC 5%, due May 15, 2040 | 0.52% | 0.02% | 0.02% |
| Bay Area Toll Authority 5%, due Apr 1, 2043 | 0.23% | 0.02% | 0.02% |
| Bay Area Toll Authority 5%, due Apr 1, 2042 | 0.49% | 0.02% | 0.02% |
| Desert Community College District 5%, due Aug 1, 2051 | 0.75% | 0.02% | 0.02% |
| Burbank-Glendale-Pasadena Airport Authority Brick Campaign 4.375%, due Jul 1, 2056 | 0.32% | 0.01% | 0.01% |
| Southern California Public Power Authority 3.7%, due Jul 1, 2040 | 0.64% | 0.01% | 0.01% |
| Los Angeles Unified School District/CA 5%, due Jul 1, 2035 | 0.75% | 0.01% | 0.01% |
| Riverside County Public Financing Authority 5%, due Oct 1, 2035 | 0.15% | 0.01% | 0.01% |
| State of California 5%, due Mar 1, 2032 | 0.32% | 0.01% | 0.01% |
| California State University 4%, due Nov 1, 2043 | 0.43% | 0.01% | 0.01% |
| Los Angeles Department of Water & Power Water System Revenue 5%, due Jul 1, 2033 | 0.18% | 0.01% | 0.01% |
| CHF-DAVIS I LLC 5%, due May 15, 2043 | 0.33% | 0.01% | 0.01% |
| San Joaquin Hills Transportation Corridor Agency 5.25%, due Jan 15, 2049 | 0.13% | 0.01% | 0.01% |
| Chabot-Las Positas Community College District 5%, due Aug 1, 2044 | 0.51% | 0.01% | 0.01% |
| EQUITABLE SCH REVOLV OBL 5%, due Nov 1, 2029 | 0.34% | 0.01% | 0.01% |
| San Diego County Regional Airport Authority 5.25%, due Jul 1, 2050 | 0.21% | 0.01% | 0.01% |
| UNIVERSITY OF CALIFORNIA 5%, due May 15, 2045 | 0.35% | 0.00% | 0.00% |
| Los Angeles Department of Water & Power 5%, due Jul 1, 2045 | 0.68% | 0.00% | 0.00% |
| San Joaquin Hills Transportation Corridor Agency, due Jan 15, 2036 | 0.04% | 0.00% | 0.00% |
| Sacramento Municipal Utility District 5%, due Aug 15, 2028 | 0.03% | 0.00% | 0.00% |
| Los Angeles Department of Water & Power Water System Revenue 5%, due Jul 1, 2027 | 0.17% | 0.00% | 0.00% |
| Chabot-Las Positas Community College District 5.25%, due Aug 1, 2048 | 0.42% | 0.00% | 0.00% |
| State of California 4%, due Mar 1, 2036 | 0.01% | 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.