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
48 holdings in all 2 funds| Fund | FBND | TMB | Positions | Holdings |
|---|---|---|---|---|
| FBNDFidelity Total Bond ETF | — | 7% 48 shared |
4,771 | as of Oct 20, 2026issuer data |
| TMBThornburg Multi Sector Bond ETF | 7% 48 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
7.0% common weight| Holding | FBND | TMB | Smallest |
|---|---|---|---|
| USTN 4.375% 05/15/36, due May 15, 2036 | 2.63% | 3.67% | 2.63% |
| USTN 4.125% 02/15/36, due Feb 15, 2036 | 1.98% | 4.49% | 1.98% |
| USTN 4.625% 02/15/35, due Feb 15, 2035 | 0.77% | 1.62% | 0.77% |
| USTN 3.75% 02/28/33, due Feb 28, 2033 | 0.45% | 3.94% | 0.45% |
| USTN 4.25% 11/15/34, due Nov 15, 2034 | 0.90% | 0.32% | 0.32% |
| PEMEX 5.95% 01/28/31, due Jan 28, 2031 | 0.25% | 0.15% | 0.15% |
| T-MOBILE USA 2.25% 11/15/31, due Nov 15, 2031 | 0.09% | 0.12% | 0.09% |
| USTN 4% 06/30/32, due Jun 30, 2032 | 0.37% | 0.08% | 0.08% |
| CENTENE CORP 4.625% 12/15/29, due Dec 15, 2029 | 0.08% | 0.16% | 0.08% |
| USTB 1.875% 11/15/51, due Nov 15, 2051 | 0.06% | 0.16% | 0.06% |
| COLUMBIA PIPE 5.927% 8/30 144A, due Aug 15, 2030 | 0.07% | 0.05% | 0.05% |
| MPLX LP 4.95% 09/01/32, due Sep 1, 2032 | 0.05% | 0.17% | 0.05% |
| USTN TII 1.875% 01/15/36, due Jan 15, 2036 | 0.04% | 0.12% | 0.04% |
| AEP TEXAS INC 5.2% 04/15/36, due Apr 15, 2036 | 0.04% | 0.04% | 0.04% |
| PUGET ENERGY IN 4.1% 06/15/30, due Jun 15, 2030 | 0.03% | 0.18% | 0.03% |
| BAT CAP CORP 5.834% 02/20/31, due Feb 20, 2031 | 0.03% | 0.10% | 0.03% |
| ELECTRONIC ART TERM B 1LN 8/33, due Aug 4, 2033 | 0.03% | 0.16% | 0.03% |
| CENTENE CORP 2.625% 08/01/31, due Aug 1, 2031 | 0.02% | 0.08% | 0.02% |
| USTB 4.75% 02/15/45, due Feb 15, 2045 | 0.02% | 0.56% | 0.02% |
| EQUITABLE FIN 5% 03/27/30 144A, due Mar 27, 2030 | 0.02% | 0.17% | 0.02% |
| PAYCHEX INC 5.35% 04/15/32, due Apr 15, 2032 | 0.02% | 0.14% | 0.02% |
| IMPERIAL BRND 6.125% 7/27 144A, due Jul 27, 2027 | 0.01% | 0.18% | 0.01% |
| COGENT GRP/FIN 7% 6/15/27 144A, due Jun 15, 2027 | 0.01% | 0.14% | 0.01% |
| CCO HLDGS/CAP 4.25% 2/31 144A, due Feb 1, 2031 | 0.01% | 0.17% | 0.01% |
| REACH 25-2A A 4.93% 08/32 144A, due Aug 18, 2032 | 0.01% | 0.12% | 0.01% |
| CROWN AMERICAS 5.875% 06/01/33, due Jun 1, 2033 | 0.01% | 0.17% | 0.01% |
| BAT CAP CORP 4.625% 03/22/33, due Mar 22, 2033 | 0.01% | 0.22% | 0.01% |
| AXON ENTE 6.125% 03/15/30 144A, due Mar 15, 2030 | 0.01% | 0.14% | 0.01% |
| US FOODS INC 4.75% 2/29 144A, due Feb 15, 2029 | 0.01% | 0.17% | 0.01% |
| ORANGE 4.75% 01/13/33 144A, due Jan 13, 2033 | 0.00% | 0.29% | 0.00% |
| POST HLDGS INC 6.5% 3/36 144A, due Mar 15, 2036 | 0.00% | 0.06% | 0.00% |
| SUNOCO LP 6.625% 08/15/32 144A, due Aug 15, 2032 | 0.00% | 0.09% | 0.00% |
| DELEK LOG 8.625% 3/15/29 144A, due Mar 15, 2029 | 0.00% | 0.11% | 0.00% |
| NOVELIS CORP 3.875% 8/31 144A, due Aug 15, 2031 | 0.00% | 0.17% | 0.00% |
| SNAM SPA 5.75% 05/28/35 144A, due May 28, 2035 | 0.00% | 0.14% | 0.00% |
| PROSUS NV 3.061% 07/13/31 144A, due Jul 13, 2031 | 0.00% | 0.12% | 0.00% |
| CORECIVIC INC 8.25% 04/15/29, due Apr 15, 2029 | 0.00% | 0.17% | 0.00% |
| POST HLDGS 6.375% 3/1/33 144A, due Mar 1, 2033 | 0.00% | 0.18% | 0.00% |
| CCO HLDGS/CAP 7% 02/01/33 144A, due Feb 1, 2033 | 0.00% | 0.09% | 0.00% |
| VIRGIN MED SEC 4.5% 8/30 144A, due Aug 15, 2030 | 0.00% | 0.12% | 0.00% |
| SENSATA TECH 4% 04/15/29 144A, due Apr 15, 2029 | 0.00% | 0.14% | 0.00% |
| AEROPUERTOS DOM 7% 6/34 144A, due Jun 30, 2034 | 0.00% | 0.14% | 0.00% |
| TENET HEALTH 6.75% 05/15/31, due May 15, 2031 | 0.00% | 0.10% | 0.00% |
| GLOBAL PART 7.125% 7/1/33 144A, due Jul 1, 2033 | 0.00% | 0.17% | 0.00% |
| ENERGEAN ISRAEL 8.5% 9/33 144A, due Sep 30, 2033 | 0.00% | 0.11% | 0.00% |
| RCKTL 25-1A A 4.9% 07/34, due Jul 25, 2034 | 0.00% | 0.02% | 0.00% |
| MEDLINE BORROW 6.25% 4/29 144A, due Apr 1, 2029 | 0.00% | 0.17% | 0.00% |
| FNR 2012-134 MX 3.5% 05/42, due May 25, 2042 | 0.00% | 0.19% | 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.