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
117 holdings in all 2 funds| Fund | BND | TMB | Positions | Holdings |
|---|---|---|---|---|
| BNDVanguard Total Bond Market | — | 3% 117 shared |
15,758 | as of Sep 30, 2026issuer data |
| TMBThornburg Multi Sector Bond ETF | 3% 117 shared | — | 554 | 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
2.8% common weight| Holding | BND | TMB | Smallest |
|---|---|---|---|
| United States Treasury Note/Bond 4.625%, due Feb 15, 2035 | 0.41% | 1.62% | 0.41% |
| United States Treasury Note/Bond 4.125%, due Feb 15, 2036 | 0.39% | 4.49% | 0.39% |
| United States Treasury Note/Bond 4.25%, due Nov 15, 2034 | 0.41% | 0.32% | 0.32% |
| United States Treasury Note/Bond 4.375%, due May 15, 2036 | 0.26% | 3.67% | 0.26% |
| United States Treasury Note/Bond 1.75%, due Jan 31, 2029 | 0.17% | 0.16% | 0.16% |
| United States Treasury Note/Bond 3.75%, due Feb 28, 2033 | 0.14% | 3.94% | 0.14% |
| United States Treasury Note/Bond 4.75%, due Feb 15, 2045 | 0.13% | 0.56% | 0.13% |
| United States Treasury Note/Bond 1.875%, due Nov 15, 2051 | 0.12% | 0.16% | 0.12% |
| United States Treasury Note/Bond 1.75%, due Aug 15, 2041 | 0.11% | 0.44% | 0.11% |
| United States Treasury Note/Bond 4%, due Jun 30, 2032 | 0.15% | 0.08% | 0.08% |
| Freddie Mac Pool | 0.07% | 0.10% | 0.07% |
| United States Treasury Note/Bond 3.875%, due Apr 30, 2031 | 0.07% | 1.09% | 0.07% |
| United States Treasury Note/Bond 2.75%, due Nov 15, 2042 | 0.05% | 0.26% | 0.05% |
| United States Treasury Note/Bond 2.5%, due Feb 15, 2045 | 0.04% | 0.12% | 0.04% |
| United States Treasury Note/Bond 3%, due May 15, 2045 | 0.04% | 1.02% | 0.04% |
| Freddie Mac Pool | 0.03% | 0.97% | 0.03% |
| Fannie Mae Pool | 0.03% | 1.34% | 0.03% |
| Freddie Mac Pool | 0.03% | 0.52% | 0.03% |
| Freddie Mac Pool | 0.02% | 0.32% | 0.02% |
| Aon North America Inc 5.45%, due Mar 1, 2034 | 0.01% | 0.22% | 0.01% |
| Ginnie Mae II Pool | 0.01% | 0.54% | 0.01% |
| Ginnie Mae II Pool 3%, due Nov 20, 2049 | 0.01% | 0.16% | 0.01% |
| Amazon.com Inc 4.55%, due Mar 13, 2033 | 0.01% | 0.20% | 0.01% |
| Freddie Mac Pool | 0.01% | 0.27% | 0.01% |
| Fannie Mae Pool | 0.01% | 0.09% | 0.01% |
| Ginnie Mae II Pool | 0.01% | 0.26% | 0.01% |
| Morgan Stanley Bank NA 5.016%, due Jan 12, 2029 | 0.01% | 0.14% | 0.01% |
| Fannie Mae Pool | 0.01% | 1.38% | 0.01% |
| US Bancorp 5.1%, due Jul 23, 2030 | 0.01% | 0.11% | 0.01% |
| American Honda Finance Corp 4.25%, due Sep 1, 2028 | 0.01% | 0.05% | 0.01% |
| Southern Co Gas Capital Corp 5.15%, due Sep 15, 2032 | 0.01% | 0.13% | 0.01% |
| Alphabet Inc 3.7%, due Feb 15, 2029 | 0.01% | 0.08% | 0.01% |
| Paychex Inc 5.35%, due Apr 15, 2032 | 0.01% | 0.14% | 0.01% |
| Alphabet Inc 4.1%, due Feb 15, 2031 | 0.01% | 0.08% | 0.01% |
| Oracle Corp 5.25%, due Feb 3, 2032 | 0.01% | 0.06% | 0.01% |
| Conagra Brands Inc 4.85%, due Nov 1, 2028 | 0.01% | 0.22% | 0.01% |
| Willis North America Inc 4.55%, due Mar 15, 2031 | 0.01% | 0.11% | 0.01% |
| DTE Energy Co 5.05%, due Oct 1, 2035 | 0.01% | 0.11% | 0.01% |
| Altria Group Inc 2.45%, due Feb 4, 2032 | 0.01% | 0.19% | 0.01% |
| Freddie Mac Pool | 0.01% | 0.17% | 0.01% |
| Genuine Parts Co 4.95%, due Aug 15, 2029 | 0.01% | 0.18% | 0.01% |
| Eversource Energy 5.45%, due Mar 1, 2028 | 0.01% | 0.10% | 0.01% |
| Humana Inc 5.375%, due Apr 15, 2031 | 0.01% | 0.14% | 0.01% |
| Barclays PLC 4.476%, due Nov 11, 2029 | 0.01% | 0.14% | 0.01% |
| BAT Capital Corp 5.834%, due Feb 20, 2031 | 0.00% | 0.10% | 0.00% |
| Block Financial LLC 2.5%, due Jul 15, 2028 | 0.00% | 0.13% | 0.00% |
| Citigroup Inc 4.952%, due May 7, 2031 | 0.00% | 0.15% | 0.00% |
| Old Republic International Corp 5.7%, due Jun 1, 2036 | 0.00% | 0.15% | 0.00% |
| Huntington Ingalls Industries Inc 3.483%, due Dec 1, 2027 | 0.00% | 0.18% | 0.00% |
| Host Hotels & Resorts LP 4.25%, due Dec 15, 2028 | 0.00% | 0.12% | 0.00% |
| Ameren Corp 5.375%, due Mar 15, 2035 | 0.00% | 0.11% | 0.00% |
| NetApp Inc 5.5%, due Mar 17, 2032 | 0.00% | 0.20% | 0.00% |
| Enstar Group Ltd 3.1%, due Sep 1, 2031 | 0.00% | 0.17% | 0.00% |
| CDW LLC / CDW Finance Corp 4.25%, due Apr 1, 2028 | 0.00% | 0.15% | 0.00% |
| Hewlett Packard Enterprise Co 4.15%, due Sep 15, 2028 | 0.00% | 0.18% | 0.00% |
| Comcast Corp 3.25%, due Nov 1, 2039 | 0.00% | 0.15% | 0.00% |
| MPLX LP 4.95%, due Sep 1, 2032 | 0.00% | 0.17% | 0.00% |
| First American Financial Corp 2.4%, due Aug 15, 2031 | 0.00% | 0.15% | 0.00% |
| RenaissanceRe Holdings Ltd 5.75%, due Jun 5, 2033 | 0.00% | 0.19% | 0.00% |
| Exelon Corp 5.125%, due Mar 15, 2031 | 0.00% | 0.14% | 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.