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
208 holdings in all 2 funds| Fund | FBND | GCOR | Positions | Holdings |
|---|---|---|---|---|
| FBNDFidelity Total Bond ETF | — | 12% 208 shared |
4,771 | as of Oct 20, 2026issuer data |
| GCORGoldman Sachs Access U.S. Aggregate Bond ETF | 12% 208 shared | — | 1,812 | 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
12.0% common weight| Holding | FBND | GCOR | Smallest |
|---|---|---|---|
| GNII II 5.5% 11/56 #TBA, due Nov 1, 2056 | 1.05% | 0.60% | 0.60% |
| USTN 4.625% 02/15/35, due Feb 15, 2035 | 0.77% | 0.54% | 0.54% |
| USTN 3.875% 08/15/34, due Aug 15, 2034 | 0.52% | 0.52% | 0.52% |
| GNII II 6% 11/56 #TBA, due Nov 1, 2056 | 0.54% | 0.49% | 0.49% |
| USTN 4.25% 08/15/35, due Aug 15, 2035 | 1.81% | 0.48% | 0.48% |
| UMBS 30YR 5% 11/56 #TBA, due Nov 1, 2056 | 0.46% | 1.74% | 0.46% |
| USTB 4.5% 11/15/54, due Nov 15, 2054 | 1.09% | 0.43% | 0.43% |
| USTB 4.625% 11/15/55, due Nov 15, 2055 | 0.71% | 0.41% | 0.41% |
| UMBS 30YR 2% 11/56 #TBA, due Nov 1, 2056 | 0.41% | 0.65% | 0.41% |
| USTN 3.5% 02/15/33, due Feb 15, 2033 | 0.53% | 0.40% | 0.40% |
| USTN 3.375% 05/15/33, due May 15, 2033 | 0.52% | 0.40% | 0.40% |
| USTN 4.25% 11/15/34, due Nov 15, 2034 | 0.90% | 0.33% | 0.33% |
| USTB 4.75% 05/15/55, due May 15, 2055 | 0.90% | 0.32% | 0.32% |
| USTN 3.875% 08/15/33, due Aug 15, 2033 | 0.31% | 0.50% | 0.31% |
| USTN 4.25% 05/15/35, due May 15, 2035 | 1.01% | 0.30% | 0.30% |
| USTN 4.125% 11/15/32, due Nov 15, 2032 | 0.28% | 0.57% | 0.28% |
| USTB 4.25% 08/15/54, due Aug 15, 2054 | 0.65% | 0.28% | 0.28% |
| USTB 4.75% 08/15/55, due Aug 15, 2055 | 0.97% | 0.26% | 0.26% |
| UMBS 30YR 3.5% 11/56 #TBA, due Nov 1, 2056 | 0.25% | 0.64% | 0.25% |
| USTB 4.75% 02/15/56, due Feb 15, 2056 | 0.88% | 0.25% | 0.25% |
| USTB 5% 05/15/56, due May 15, 2056 | 1.36% | 0.24% | 0.24% |
| MSTDW 3.622%/VAR 04/01/31, due Apr 1, 2031 | 0.28% | 0.23% | 0.23% |
| USTN 4.25% 05/31/33, due May 31, 2033 | 0.23% | 0.18% | 0.18% |
| USTN 4.625% 08/15/36, due Aug 15, 2036 | 0.39% | 0.18% | 0.18% |
| USTN 4% 02/15/34, due Feb 15, 2034 | 0.13% | 1.08% | 0.13% |
| UMBS 30YR 2.5% 11/56 #TBA, due Nov 1, 2056 | 0.13% | 0.29% | 0.13% |
| USTN 4.125% 02/15/36, due Feb 15, 2036 | 1.98% | 0.13% | 0.13% |
| USTN 4.375% 05/15/36, due May 15, 2036 | 2.63% | 0.12% | 0.12% |
| USTN 4.375% 05/15/34, due May 15, 2034 | 0.23% | 0.12% | 0.12% |
| USTB 4.625% 02/15/55, due Feb 15, 2055 | 0.33% | 0.12% | 0.12% |
| USTN 4% 11/15/35, due Nov 15, 2035 | 0.84% | 0.10% | 0.10% |
| USTB 4.625% 05/15/54, due May 15, 2054 | 0.71% | 0.09% | 0.09% |
| USTN 3.75% 02/28/33, due Feb 28, 2033 | 0.45% | 0.08% | 0.08% |
| USTB 4.25% 02/15/54, due Feb 15, 2054 | 1.33% | 0.08% | 0.08% |
| USTN 4.5% 11/15/33, due Nov 15, 2033 | 0.51% | 0.07% | 0.07% |
| USTB 4% 11/15/52, due Nov 15, 2052 | 0.72% | 0.07% | 0.07% |
| PEMEX 6.7% 02/16/32, due Feb 16, 2032 | 0.12% | 0.06% | 0.06% |
| USTN 3.75% 11/30/32, due Nov 30, 2032 | 0.37% | 0.06% | 0.06% |
| USTB 2.25% 02/15/52, due Feb 15, 2052 | 0.06% | 0.30% | 0.06% |
| USTN 3.875% 12/31/32, due Dec 31, 2032 | 1.32% | 0.06% | 0.06% |
| USTB 4.125% 08/15/53, due Aug 15, 2053 | 0.41% | 0.06% | 0.06% |
| UMBS 30YR 3% 11/56 #TBA, due Nov 1, 2056 | 0.06% | 0.92% | 0.06% |
| USTN 3.875% 04/15/29, due Apr 15, 2029 | 0.05% | 0.18% | 0.05% |
| AERCAP IRELAND 3.3% 01/30/32, due Jan 30, 2032 | 0.12% | 0.05% | 0.05% |
| BOA CORP 5.015%/VAR 07/22/33, due Jul 22, 2033 | 0.19% | 0.05% | 0.05% |
| USTB 4.75% 11/15/53, due Nov 15, 2053 | 0.05% | 0.13% | 0.05% |
| USTB 5.125% 08/15/56, due Aug 15, 2056 | 0.95% | 0.05% | 0.05% |
| JPMC CO 4.586%/VAR 04/26/33, due Apr 26, 2033 | 0.09% | 0.04% | 0.04% |
| WELLSFARGO 4.478%/VAR 04/04/31, due Apr 4, 2031 | 0.31% | 0.04% | 0.04% |
| BROADCOM INC 2.6% 02/15/33, due Feb 15, 2033 | 0.16% | 0.04% | 0.04% |
| MSTDW 4.431%/VAR 01/23/30, due Jan 23, 2030 | 0.32% | 0.04% | 0.04% |
| GNII II 6.5% 11/56 #TBA, due Nov 1, 2056 | 0.04% | 0.13% | 0.04% |
| USTN 4.125% 07/15/29, due Jul 15, 2029 | 0.04% | 0.04% | 0.04% |
| WELLSFARGO 5.605%/VAR 04/23/36, due Apr 23, 2036 | 0.06% | 0.04% | 0.04% |
| WELLSFARGO 5.574%/VAR 07/25/29, due Jul 25, 2029 | 0.04% | 0.04% | 0.04% |
| MPLX LP 2.65% 08/15/30, due Aug 15, 2030 | 0.11% | 0.03% | 0.03% |
| BOA CORP 5.468%/VAR 01/23/35, due Jan 23, 2035 | 0.07% | 0.03% | 0.03% |
| FORD MOTOR CRED 7.122% 11/7/33, due Nov 7, 2033 | 0.06% | 0.03% | 0.03% |
| BOA CORP 2.592%/VAR 04/29/31, due Apr 29, 2031 | 0.30% | 0.03% | 0.03% |
| SPACE 5.65% 7/33 144A, due Jul 15, 2033 | 0.17% | 0.03% | 0.03% |
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.