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
2569 holdings in all 2 funds| Fund | AGG | IMTB | Positions | Holdings |
|---|---|---|---|---|
| AGGiShares Core U.S. Aggregate Bond ETF | — | 26% 2569 shared |
13,394 | as of Oct 20, 2026issuer data |
| IMTBiShares Core 5-10 Year USD Bond ETF | 26% 2569 shared | — | 3,546 | 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
25.7% common weight| Holding | AGG | IMTB | Smallest |
|---|---|---|---|
| TREASURY NOTE (OLD) 4.38%, due May 15, 2036 | 0.40% | 0.82% | 0.40% |
| TREASURY NOTE 4.63%, due Feb 15, 2035 | 0.40% | 0.99% | 0.40% |
| TREASURY NOTE 4.25%, due Nov 15, 2034 | 0.40% | 1.37% | 0.40% |
| TREASURY NOTE 4.38%, due May 15, 2034 | 0.39% | 1.17% | 0.39% |
| TREASURY NOTE 4.25%, due May 15, 2035 | 0.39% | 0.76% | 0.39% |
| TREASURY NOTE 3.88%, due Aug 15, 2034 | 0.38% | 0.87% | 0.38% |
| TREASURY NOTE (2OLD), due Feb 15, 2036 | 0.38% | 0.79% | 0.38% |
| TREASURY NOTE 4.5%, due Nov 15, 2033 | 0.38% | 0.81% | 0.38% |
| TREASURY NOTE 4.25%, due Aug 15, 2035 | 0.38% | 1.11% | 0.38% |
| TREASURY NOTE 4%, due Nov 15, 2035 | 0.38% | 1.09% | 0.38% |
| TREASURY NOTE 4%, due Feb 15, 2034 | 0.37% | 0.82% | 0.37% |
| TREASURY NOTE 3.88%, due Aug 15, 2033 | 0.33% | 0.73% | 0.33% |
| TREASURY NOTE 2.88%, due May 15, 2032 | 0.32% | 0.91% | 0.32% |
| TREASURY NOTE 1.38%, due Nov 15, 2031 | 0.31% | 0.77% | 0.31% |
| TREASURY NOTE 3.38%, due May 15, 2033 | 0.31% | 0.63% | 0.31% |
| TREASURY NOTE 3.5%, due Feb 15, 2033 | 0.30% | 0.57% | 0.30% |
| TREASURY NOTE 1.88%, due Feb 15, 2032 | 0.28% | 0.70% | 0.28% |
| TREASURY NOTE 4.13%, due Nov 15, 2032 | 0.28% | 0.58% | 0.28% |
| TREASURY NOTE 2.75%, due Aug 15, 2032 | 0.26% | 0.48% | 0.26% |
| TREASURY NOTE (OTR) 4.63%, due Aug 15, 2036 | 0.23% | 0.45% | 0.23% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.20% | 0.57% | 0.20% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.18% | 0.42% | 0.18% |
| TREASURY NOTE 4.5%, due Dec 31, 2031 | 0.16% | 0.28% | 0.16% |
| TREASURY NOTE 4%, due Jul 31, 2032 | 0.16% | 0.22% | 0.16% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.16% | 0.41% | 0.16% |
| TREASURY NOTE 3.75%, due Nov 30, 2032 | 0.16% | 0.25% | 0.16% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.16% | 0.32% | 0.16% |
| TREASURY NOTE 3.88%, due Aug 31, 2032 | 0.16% | 0.30% | 0.16% |
| TREASURY NOTE 3.75%, due Oct 31, 2032 | 0.15% | 0.24% | 0.15% |
| TREASURY NOTE 3.75%, due Feb 28, 2033 | 0.15% | 0.31% | 0.15% |
| TREASURY NOTE 4.13%, due Apr 30, 2033 | 0.14% | 0.35% | 0.14% |
| TREASURY NOTE 4%, due Jan 31, 2033 | 0.13% | 0.14% | 0.13% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.13% | 0.33% | 0.13% |
| FHLMC 30YR UMBS SUPER, due Mar 1, 2052 | 0.13% | 0.31% | 0.13% |
| GNMA2 30YR, due Dec 20, 2054 | 0.12% | 0.21% | 0.12% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.12% | 0.78% | 0.12% |
| TREASURY NOTE 4.13%, due May 31, 2032 | 0.12% | 0.33% | 0.12% |
| TREASURY NOTE 4.25%, due Mar 31, 2033 | 0.13% | 0.12% | 0.12% |
| UMBS 15YR TBA(REG B), due Nov 17, 2026 | 0.11% | 0.30% | 0.11% |
| TREASURY NOTE 4.13%, due Mar 31, 2032 | 0.11% | 0.39% | 0.11% |
| TREASURY NOTE 4.38%, due Jan 31, 2032 | 0.11% | 0.46% | 0.11% |
| TREASURY NOTE 4%, due Apr 30, 2032 | 0.11% | 0.28% | 0.11% |
| UMBS 15YR TBA(REG B), due Nov 17, 2026 | 0.14% | 0.11% | 0.11% |
| GNMA2 30YR, due Apr 20, 2056 | 0.11% | 0.25% | 0.11% |
| TREASURY NOTE 4.13%, due Oct 31, 2031 | 0.11% | 0.29% | 0.11% |
| GNMA2 30YR, due Jul 20, 2051 | 0.11% | 0.20% | 0.11% |
| TREASURY NOTE 4.13%, due Feb 29, 2032 | 0.11% | 0.33% | 0.11% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.11% | 0.63% | 0.11% |
| GNMA2 30YR, due Nov 20, 2054 | 0.10% | 0.18% | 0.10% |
| TREASURY NOTE 4%, due Jun 30, 2032 | 0.10% | 0.26% | 0.10% |
| TREASURY NOTE 4.13%, due Nov 30, 2031 | 0.10% | 0.23% | 0.10% |
| GNMA2 30YR, due Aug 20, 2051 | 0.10% | 0.21% | 0.10% |
| GNMA2 30YR, due Dec 20, 2051 | 0.10% | 0.25% | 0.10% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.10% | 0.21% | 0.10% |
| TREASURY NOTE 3.88%, due Sep 30, 2032 | 0.10% | 0.18% | 0.10% |
| GNMA2 30YR, due Aug 20, 2054 | 0.10% | 0.23% | 0.10% |
| TREASURY NOTE 3.88%, due Dec 31, 2032 | 0.15% | 0.10% | 0.10% |
| GNMA2 30YR, due Feb 20, 2051 | 0.10% | 0.20% | 0.10% |
| FNMA 30YR UMBS, due Jan 1, 2052 | 0.10% | 0.10% | 0.10% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.09% | 0.20% | 0.09% |
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.