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
27 holdings in all 2 funds| Fund | CAM | CATF | Positions | Holdings |
|---|---|---|---|---|
| CAMAB California Intermediate Municipal ETF | — | 7% 27 shared |
415 | as of May 31, 2026SEC filing 12% has matured since |
| CATFAmerican Century California Municipal Bond ETF | 7% 27 shared | — | 287 | 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
7.1% common weight| Holding | CAM | CATF | Smallest |
|---|---|---|---|
| California Community Choice Financing Authority 5%, due Feb 1, 2055 | 0.93% | 0.73% | 0.73% |
| California Community Choice Financing Authority 5%, due Oct 1, 2056 | 0.72% | 0.70% | 0.70% |
| California Community Choice Financing Authority 5%, due Aug 1, 2055 | 0.68% | 0.67% | 0.67% |
| California Municipal Finance Authority 4%, due Jul 15, 2029 | 0.86% | 0.65% | 0.65% |
| East County Advanced Water Purification Joint Powers Authority 3.125%, due Sep 1, 2026 | 0.43% | 0.89% | 0.43% |
| California Community Choice Financing Authority 5%, due Dec 1, 2035 | 0.42% | 0.56% | 0.42% |
| Los Angeles Department of Water & Power Water System Revenue 5%, due Jan 1, 2030 | 0.91% | 0.34% | 0.34% |
| California Municipal Finance Authority 5%, due Jun 30, 2032 | 0.31% | 0.35% | 0.31% |
| California Community Choice Financing Authority 5%, due Jan 1, 2056 | 1.32% | 0.31% | 0.31% |
| California Health Facilities Financing Authority 5%, due Aug 15, 2047 | 0.28% | 0.35% | 0.28% |
| Long Beach Bond Finance Authority 5.5%, due Nov 15, 2037 | 0.36% | 0.27% | 0.27% |
| Port of Los Angeles 5%, due Aug 1, 2035 | 0.22% | 0.36% | 0.22% |
| California Community Choice Financing Authority 5.25%, due Feb 1, 2036 | 0.19% | 0.84% | 0.19% |
| California Municipal Finance Authority 5%, due Sep 1, 2046 | 0.19% | 0.33% | 0.19% |
| Foothill-Eastern Transportation Corridor Agency 4%, due Jan 15, 2043 | 0.16% | 0.26% | 0.16% |
| California Infrastructure & Economic Development Bank 3.25%, due Jun 1, 2033 | 0.14% | 0.48% | 0.14% |
| California Municipal Finance Authority 4.327%, due Nov 20, 2040 | 0.24% | 0.13% | 0.13% |
| California Municipal Finance Authority 5%, due Apr 1, 2044 | 0.13% | 0.34% | 0.13% |
| Los Angeles Department of Water & Power Water System Revenue 5%, due Jul 1, 2033 | 0.12% | 0.18% | 0.12% |
| Transbay Joint Powers Authority 5%, due Oct 1, 2037 | 0.12% | 0.27% | 0.12% |
| California Municipal Finance Authority 3.536%, due Feb 20, 2041 | 0.28% | 0.12% | 0.12% |
| California Community Choice Financing Authority 5%, due Nov 1, 2033 | 0.12% | 0.70% | 0.12% |
| California Enterprise Development Authority 5%, due Jul 1, 2033 | 0.10% | 0.57% | 0.10% |
| Central Valley Energy Authority 5%, due Dec 1, 2055 | 0.09% | 0.50% | 0.09% |
| California Community Choice Financing Authority 5.25%, due Nov 1, 2054 | 0.09% | 0.63% | 0.09% |
| California Municipal Finance Authority 5%, due Nov 1, 2036 | 0.09% | 0.64% | 0.09% |
| California County Tobacco Securitization Agency 5%, due Jun 1, 2032 | 0.03% | 0.14% | 0.03% |
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.