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
220 holdings in all 2 funds| Fund | CGCB | IUSB | Positions | Holdings |
|---|---|---|---|---|
| CGCBCapital Group Core Bond ETF | — | 4% 220 shared |
847 | as of Oct 20, 2026issuer data |
| IUSBiShares Trust iShares Core Universal USD Bond ETF | 4% 220 shared | — | 18,254 | 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 | CGCB | IUSB | Smallest |
|---|---|---|---|
| FNMA TBA 30 YR 5.5 SINGLE FAMILY MORTGAGE | 0.48% | 0.34% | 0.34% |
| US TREASURY N/B 10/29 4.125, due Oct 15, 2029 | 0.23% | 0.17% | 0.17% |
| US TREASURY N/B 05/56 5, due May 15, 2056 | 0.84% | 0.17% | 0.17% |
| US TREASURY N/B 01/32 4.375, due Jan 15, 2032 | 0.16% | 0.18% | 0.16% |
| US TREASURY N/B 11/55 4.625, due Nov 15, 2055 | 0.19% | 0.16% | 0.16% |
| US TREASURY N/B 05/55 4.75, due May 15, 2055 | 0.63% | 0.15% | 0.15% |
| US TREASURY N/B 08/45 4.875, due Aug 15, 2045 | 0.15% | 0.15% | 0.15% |
| US TREASURY N/B 05/52 2.875, due May 15, 2052 | 0.62% | 0.14% | 0.14% |
| FNMA POOL MA4562 FN 03/52 FIXED 2, due Mar 15, 2052 | 0.36% | 0.13% | 0.13% |
| US TREASURY N/B 05/51 2.375, due May 15, 2051 | 0.15% | 0.12% | 0.12% |
| US TREASURY N/B 10/31 4.125, due Oct 15, 2031 | 0.10% | 0.14% | 0.10% |
| US TREASURY N/B 05/40 1.125, due May 15, 2040 | 0.16% | 0.10% | 0.10% |
| US TREASURY N/B 08/46 5.125, due Aug 15, 2046 | 0.53% | 0.09% | 0.09% |
| US TREASURY N/B 02/41 1.875, due Feb 15, 2041 | 0.39% | 0.09% | 0.09% |
| US TREASURY N/B 02/51 1.875, due Feb 15, 2051 | 0.36% | 0.09% | 0.09% |
| US TREASURY N/B 05/32 4.125, due May 15, 2032 | 0.15% | 0.08% | 0.08% |
| FED HM LN PC POOL SD8199 FR 03/52 FIXED 2, due Mar 15, 2052 | 0.24% | 0.07% | 0.07% |
| US TREASURY N/B 11/50 1.625, due Nov 15, 2050 | 0.58% | 0.07% | 0.07% |
| FNMA POOL MA5552 FN 12/54 FIXED 5, due Dec 15, 2054 | 0.21% | 0.06% | 0.06% |
| FNMA POOL MA4465 FN 11/51 FIXED 2, due Nov 15, 2051 | 0.15% | 0.06% | 0.06% |
| US TREASURY N/B 11/40 1.375, due Nov 15, 2040 | 0.47% | 0.05% | 0.05% |
| FNMA POOL MA4437 FN 10/51 FIXED 2, due Oct 15, 2051 | 0.35% | 0.05% | 0.05% |
| FED HM LN PC POOL SD8204 FR 04/52 FIXED 2, due Apr 15, 2052 | 0.18% | 0.04% | 0.04% |
| US TREASURY N/B 05/50 1.25, due May 15, 2050 | 0.12% | 0.04% | 0.04% |
| FNMA POOL MA4563 FN 03/52 FIXED 2.5, due Mar 15, 2052 | 0.98% | 0.04% | 0.04% |
| FNMA POOL MA4578 FN 04/52 FIXED 2.5, due Apr 15, 2052 | 0.03% | 0.07% | 0.03% |
| EAGLE FUNDING LUXCO SARL SR UNSECURED REGS 08/30 5.5, due Aug 15, 2030 | 0.32% | 0.03% | 0.03% |
| FED HM LN PC POOL SD8213 FR 05/52 FIXED 3, due May 15, 2052 | 0.48% | 0.03% | 0.03% |
| FED HM LN PC POOL SD8189 FR 01/52 FIXED 2.5, due Jan 15, 2052 | 0.03% | 0.03% | 0.03% |
| US TREASURY N/B 08/40 1.125, due Aug 15, 2040 | 0.49% | 0.03% | 0.03% |
| SYNCHRONY CARD ISSUANCE TRUST SYNIT 2025 A2 A | 0.05% | 0.02% | 0.02% |
| FNMA POOL MA4512 FN 01/52 FIXED 2.5, due Jan 15, 2052 | 0.04% | 0.02% | 0.02% |
| FED HM LN PC POOL SD8220 FR 06/52 FIXED 3, due Jun 15, 2052 | 0.04% | 0.02% | 0.02% |
| FNMA POOL MA5943 FN 01/56 FIXED 4.5, due Jan 15, 2056 | 0.08% | 0.02% | 0.02% |
| US TREASURY N/B 05/45 3, due May 15, 2045 | 0.56% | 0.02% | 0.02% |
| T MOBILE USA INC COMPANY GUAR 04/30 3.875, due Apr 15, 2030 | 0.48% | 0.02% | 0.02% |
| SPACE EXPLORATION TECH SR UNSECURED 144A 07/31 5.35, due Jul 15, 2031 | 0.32% | 0.02% | 0.02% |
| FED HM LN PC POOL SD8224 FR 07/52 FIXED 2.5, due Jul 15, 2052 | 0.09% | 0.02% | 0.02% |
| US TREASURY N/B 05/41 4.375, due May 15, 2041 | 0.38% | 0.01% | 0.01% |
| FNMA POOL MA4599 FN 05/52 FIXED 3, due May 15, 2052 | 0.08% | 0.01% | 0.01% |
| WELLS FARGO + COMPANY SR UNSECURED 07/29 VAR, due Jul 15, 2029 | 0.28% | 0.01% | 0.01% |
| FNMA POOL MA4547 FN 02/52 FIXED 2, due Feb 15, 2052 | 0.08% | 0.01% | 0.01% |
| FED HM LN PC POOL SD8194 FR 02/52 FIXED 2.5, due Feb 15, 2052 | 0.03% | 0.01% | 0.01% |
| PFIZER INVESTMENT ENTER COMPANY GUAR 05/33 4.75, due May 15, 2033 | 0.36% | 0.01% | 0.01% |
| FED HM LN PC POOL SD8324 FR 05/53 FIXED 5.5, due May 15, 2053 | 0.01% | 0.03% | 0.01% |
| FED HM LN PC POOL SD8212 FR 05/52 FIXED 2.5, due May 15, 2052 | 0.10% | 0.01% | 0.01% |
| AMGEN INC SR UNSECURED 03/33 5.25, due Mar 15, 2033 | 0.59% | 0.01% | 0.01% |
| JPMORGAN CHASE + CO SR UNSECURED 04/30 VAR, due Apr 15, 2030 | 0.36% | 0.01% | 0.01% |
| AON NA/AON GLOBAL COMPANY GUAR 09/31 5.625, due Sep 15, 2031 | 0.11% | 0.01% | 0.01% |
| CITIGROUP INC SR UNSECURED 03/31 VAR, due Mar 15, 2031 | 0.27% | 0.01% | 0.01% |
| VERIZON COMMUNICATIONS SR UNSECURED 03/32 2.355, due Mar 15, 2032 | 0.15% | 0.01% | 0.01% |
| AMAZON.COM INC SR UNSECURED 07/31 4.8, due Jul 15, 2031 | 0.33% | 0.01% | 0.01% |
| BPCE SA 144A 06/32 VAR, due Jun 15, 2032 | 0.01% | 0.01% | 0.01% |
| US TREASURY N/B 02/34 4, due Feb 15, 2034 | 0.01% | 0.31% | 0.01% |
| GOLDMAN SACHS GROUP INC SR UNSECURED 04/31 VAR, due Apr 15, 2031 | 0.30% | 0.01% | 0.01% |
| META PLATFORMS INC SR UNSECURED 11/32 4.6, due Nov 15, 2032 | 0.60% | 0.01% | 0.01% |
| AMAZON.COM INC SR UNSECURED 03/31 4.25, due Mar 15, 2031 | 0.69% | 0.01% | 0.01% |
| FED HM LN PC POOL RQ0110 FR 04/56 FIXED 5, due Apr 15, 2056 | 0.01% | 0.07% | 0.01% |
| FED HM LN PC POOL SD8237 FR 08/52 FIXED 4, due Aug 15, 2052 | 0.01% | 0.01% | 0.01% |
| MARS INC SR UNSECURED 144A 03/30 4.8, due Mar 15, 2030 | 0.59% | 0.01% | 0.01% |
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.