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
256 holdings in all 2 funds| Fund | DFSB | IAGG | Positions | Holdings |
|---|---|---|---|---|
| DFSBDimensional Global Sustainability Fixed Income ETF | — | 4% 256 shared |
743 | as of Oct 20, 2026issuer data |
| IAGGiShares Core International Aggregate Bond Fund | 4% 256 shared | — | 9,100 | 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
3.8% common weight| Holding | DFSB | IAGG | Smallest |
|---|---|---|---|
| UNITED KI 4.75% 10/22/35, due Oct 22, 2035 | 0.60% | 0.14% | 0.14% |
| UNITED 4.5% 03/07/35, due Mar 7, 2035 | 0.12% | 0.18% | 0.12% |
| JAPAN GOV .5% 03/20/33, due Mar 20, 2033 | 0.18% | 0.11% | 0.11% |
| JAPAN GOV .2% 03/20/32, due Mar 20, 2032 | 0.19% | 0.11% | 0.11% |
| JAPAN GOV .5% 12/20/32, due Dec 20, 2032 | 0.18% | 0.10% | 0.10% |
| JAPAN GOV .1% 06/20/28, due Jun 20, 2028 | 0.27% | 0.10% | 0.10% |
| UNITED KI 4.875% 07/31/36, due Jul 31, 2036 | 0.09% | 0.11% | 0.09% |
| FRANCE 1.25% 05/25/2038, due May 25, 2038 | 0.54% | 0.08% | 0.08% |
| JAPAN GOV .4% 06/20/33, due Jun 20, 2033 | 0.36% | 0.08% | 0.08% |
| UNITED KI .625% 07/31/35, due Jul 31, 2035 | 0.26% | 0.08% | 0.08% |
| JAPAN GOV 1.4% 03/20/35, due Mar 20, 2035 | 0.60% | 0.07% | 0.07% |
| FRENCH RE .5% 05/25/40, due May 25, 2040 | 0.12% | 0.07% | 0.07% |
| UNITED KI 1.25% 10/22/41, due Oct 22, 2041 | 0.12% | 0.07% | 0.07% |
| JAPAN GOV .1% 06/20/29, due Jun 20, 2029 | 0.39% | 0.07% | 0.07% |
| EUROPEAN 3.25% 07/04/34, due Jul 4, 2034 | 0.15% | 0.06% | 0.06% |
| EUROPEAN 3.% 12/04/34, due Dec 4, 2034 | 0.50% | 0.06% | 0.06% |
| KINGDOM O 5.% 03/28/35, due Mar 28, 2035 | 0.27% | 0.06% | 0.06% |
| JAPAN GOV 2.3% 03/20/40, due Mar 20, 2040 | 0.32% | 0.06% | 0.06% |
| JAPAN GOV .3% 12/20/39, due Dec 20, 2039 | 0.27% | 0.05% | 0.05% |
| EUROPEAN 3.375% 10/04/38, due Oct 4, 2038 | 0.54% | 0.05% | 0.05% |
| JAPAN GOV .4% 03/20/40, due Mar 20, 2040 | 0.37% | 0.05% | 0.05% |
| EUROPEAN 2.75% 12/13/32, due Dec 13, 2032 | 0.14% | 0.05% | 0.05% |
| EUROPEAN 3.375% 10/04/39, due Oct 4, 2039 | 0.17% | 0.05% | 0.05% |
| CANADIAN 3.25% 12/01/33, due Dec 1, 2033 | 0.09% | 0.05% | 0.05% |
| UNITED KI 1.125% 01/31/39, due Jan 31, 2039 | 1.79% | 0.04% | 0.04% |
| EUROPEAN 3.625% 12/12/40, due Dec 12, 2040 | 0.13% | 0.04% | 0.04% |
| EUROPEAN 2.875% 12/06/27, due Dec 6, 2027 | 0.29% | 0.04% | 0.04% |
| REPUBLIC 3.2% 07/15/39, due Jul 15, 2039 | 0.22% | 0.04% | 0.04% |
| CANADIAN 2.75% 06/01/33, due Jun 1, 2033 | 0.32% | 0.04% | 0.04% |
| KINGDOM O 3.% 06/22/33, due Jun 22, 2033 | 0.04% | 0.05% | 0.04% |
| NEW ZEALA .25% 05/15/28, due May 15, 2028 | 0.07% | 0.04% | 0.04% |
| KINGDOM O 4.25% 03/28/41, due Mar 28, 2041 | 0.28% | 0.04% | 0.04% |
| JAPAN GOV 1.2% 12/20/34, due Dec 20, 2034 | 0.21% | 0.04% | 0.04% |
| JAPAN GOV 1.2% 03/20/35, due Mar 20, 2035 | 0.50% | 0.04% | 0.04% |
| EUROPEAN .4% 02/04/37, due Feb 4, 2037 | 0.14% | 0.04% | 0.04% |
| JAPAN GOV 2.2% 03/20/41, due Mar 20, 2041 | 0.30% | 0.04% | 0.04% |
| EUROPEAN 2.875% 10/05/29, due Oct 5, 2029 | 0.59% | 0.04% | 0.04% |
| JAPAN GOV 1.4% 09/20/34, due Sep 20, 2034 | 0.27% | 0.03% | 0.03% |
| KINGDOM O 2.85% 10/22/34, due Oct 22, 2034 | 0.04% | 0.03% | 0.03% |
| NEW ZEALA 4.5% 05/15/35, due May 15, 2035 | 0.15% | 0.03% | 0.03% |
| EUROPEAN 3.375% 11/04/42, due Nov 4, 2042 | 0.03% | 0.04% | 0.03% |
| NEW ZEALA 3.5% 04/14/33, due Apr 14, 2033 | 0.78% | 0.03% | 0.03% |
| NEW SOUTH 1.75% 03/20/34, due Mar 20, 2034 | 0.20% | 0.03% | 0.03% |
| PROVINCE 3.45% 06/02/45, due Jun 2, 2045 | 0.27% | 0.03% | 0.03% |
| JAPAN GOV .6% 09/20/37, due Sep 20, 2037 | 0.27% | 0.02% | 0.02% |
| KINGDOM O .1% 06/22/30, due Jun 22, 2030 | 0.17% | 0.02% | 0.02% |
| PROVINCE 4.15% 06/02/34, due Jun 2, 2034 | 0.55% | 0.02% | 0.02% |
| UNITED KI 4.375% 01/31/40, due Jan 31, 2040 | 0.02% | 0.11% | 0.02% |
| TREASURY 2.% 09/17/35, due Sep 17, 2035 | 0.55% | 0.02% | 0.02% |
| NEW ZEALA 4.25% 05/15/34, due May 15, 2034 | 0.56% | 0.02% | 0.02% |
| EUROPEAN 2.875% 06/18/35, due Jun 18, 2035 | 0.04% | 0.02% | 0.02% |
| PROVINCE 4.% 09/01/35, due Sep 1, 2035 | 0.20% | 0.02% | 0.02% |
| KINGDOM O 1.9% 06/22/38, due Jun 22, 2038 | 0.98% | 0.02% | 0.02% |
| NEW SOUTH 4.25% 02/20/36, due Feb 20, 2036 | 0.49% | 0.02% | 0.02% |
| PROVINCE 3.5% 06/02/43, due Jun 2, 2043 | 0.24% | 0.02% | 0.02% |
| KINGDOM O .4% 06/22/40, due Jun 22, 2040 | 0.27% | 0.02% | 0.02% |
| KINGDOM O 3.4% 06/22/36, due Jun 22, 2036 | 0.02% | 0.04% | 0.02% |
| JAPAN GOV 2.4% 09/20/38, due Sep 20, 2038 | 0.96% | 0.02% | 0.02% |
| KINGDOM O 1.45% 06/22/37, due Jun 22, 2037 | 0.31% | 0.02% | 0.02% |
| NEW SOUTH 4.75% 09/20/35, due Sep 20, 2035 | 0.02% | 0.02% | 0.02% |
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.