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
58 holdings in all 2 funds| Fund | FBND | OBND | Positions | Holdings |
|---|---|---|---|---|
| FBNDFidelity Total Bond ETF | — | 1% 58 shared |
4,771 | as of Oct 20, 2026issuer data |
| OBNDState Street Loomis Sayles Opportunistic Bond ETF | 1% 58 shared | — | 394 | 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
0.8% common weight| Holding | FBND | OBND | Smallest |
|---|---|---|---|
| AERCAP IRELAND 3.3% 01/30/32, due Jan 30, 2032 | 0.12% | 0.13% | 0.12% |
| CENTENE CORP 3.375% 02/15/30, due Feb 15, 2030 | 0.11% | 0.33% | 0.11% |
| JPMC CO 5.572%/VAR 04/22/36, due Apr 22, 2036 | 0.09% | 0.13% | 0.09% |
| HUT 8 DC LLC 6.192% 11/42 144A, due Nov 15, 2042 | 0.06% | 0.07% | 0.06% |
| VISTRA OPERATIO 5.55% 4/36 144, due Apr 30, 2036 | 0.05% | 0.11% | 0.05% |
| COPT DEFENSE 2.75% 04/15/31, due Apr 15, 2031 | 0.14% | 0.03% | 0.03% |
| QTS CENTRAL 6.625% 9/1/31 144A, due Sep 1, 2031 | 0.03% | 0.19% | 0.03% |
| RAILWORKS 8.25% 11/15/28 144A, due Nov 15, 2028 | 0.02% | 0.11% | 0.02% |
| US ACUTE CARE 9.75% 5/29 144A, due May 15, 2029 | 0.02% | 0.12% | 0.02% |
| STAPLES 10.75% 09/01/29 144A, due Sep 1, 2029 | 0.02% | 0.27% | 0.02% |
| MATIV HOLDINGS 8% 10/1/29 144A, due Oct 1, 2029 | 0.01% | 0.08% | 0.01% |
| WULF COMPUTE 7.75% 10/30 144A, due Oct 15, 2030 | 0.01% | 0.14% | 0.01% |
| GALAXY HELIOS 9.875% 8/31 144A, due Aug 1, 2031 | 0.01% | 0.25% | 0.01% |
| SOPAIPILL IN 7.534% 11/48 144A, due Nov 30, 2048 | 0.01% | 0.15% | 0.01% |
| WESTERN GAS PAR 6.15% 04/01/33, due Apr 1, 2033 | 0.01% | 0.03% | 0.01% |
| CHENIERE ENERGY 5.2% 7/36 144A, due Jul 30, 2036 | 0.01% | 0.32% | 0.01% |
| COOPER STAN 9.25% 3/01/31 144A, due Mar 1, 2031 | 0.01% | 0.20% | 0.01% |
| COREWEAVE INC 9.25% 6/30 144A, due Jun 1, 2030 | 0.01% | 0.29% | 0.01% |
| CALIFORNIA RES 7% 1/15/34 144A, due Jan 15, 2034 | 0.01% | 0.27% | 0.01% |
| COHERENT CORP 5% 12/15/29 144A, due Dec 15, 2029 | 0.01% | 0.32% | 0.01% |
| UBS GR AG 5.714%/VAR 9/34 144, due Sep 11, 2034 | 0.01% | 0.64% | 0.01% |
| AMER AX&MF 7.75% 10/15/33 144A, due Oct 15, 2033 | 0.01% | 0.24% | 0.01% |
| NEXTERA ENGY 8.625% 3/33 144A, due Mar 15, 2033 | 0.01% | 0.13% | 0.01% |
| APH/APH2 7.875% 11/2029 144A, due Nov 1, 2029 | 0.01% | 0.30% | 0.01% |
| ALLEGIANT 7.125% 7/1/31 144A, due Jul 1, 2031 | 0.01% | 0.40% | 0.01% |
| ATHENE HOLDING 6.875%/VAR 6/55, due Jun 28, 2055 | 0.01% | 0.14% | 0.01% |
| CHEMOURS CO 8% 01/15/33 144A, due Jan 15, 2033 | 0.01% | 0.20% | 0.01% |
| DAVITA INC 6.875% 9/1/32 144A, due Sep 1, 2032 | 0.01% | 0.10% | 0.01% |
| ENTEGRIS INC 3.625% 5/29 144A, due May 1, 2029 | 0.01% | 0.08% | 0.01% |
| METHANEX US 6.25% 3/15/32 144A, due Mar 15, 2032 | 0.01% | 0.31% | 0.01% |
| CARPENTER TCH 5.625% 2/34 144A, due Mar 1, 2034 | 0.01% | 0.24% | 0.01% |
| PAR PETROLEUM 7.375% 6/34 144A, due Jun 1, 2034 | 0.01% | 0.23% | 0.01% |
| WESTERN GAS PAR 5.5% 12/15/35, due Dec 15, 2035 | 0.01% | 0.01% | 0.01% |
| KAISER CORP 5.875% 3/1/34 144, due Mar 1, 2034 | 0.01% | 0.25% | 0.01% |
| JETBLUE 9.875% 09/20/31 144A, due Sep 20, 2031 | 0.01% | 0.07% | 0.01% |
| COLUMBUS MK 7.125% 2/33 144A, due Feb 1, 2033 | 0.01% | 0.18% | 0.01% |
| LIFEPOINT HLTH 10% 6/1/32 144A, due Jun 1, 2032 | 0.01% | 0.03% | 0.01% |
| REALOGY GRP 9.75% 4/15/30 144A, due Apr 15, 2030 | 0.01% | 0.35% | 0.01% |
| ORACLE CORP SER D 6.5% PC 1/29 | 0.01% | 0.06% | 0.01% |
| RITHM CAPITAL 8% 07/15/30 144A, due Jul 15, 2030 | 0.01% | 0.02% | 0.01% |
| SEAGATE DATA ST 5.75% 12/01/34, due Dec 1, 2034 | 0.00% | 0.03% | 0.00% |
| MILLROSE REIT 6.375% 8/30 144A, due Aug 1, 2030 | 0.00% | 0.03% | 0.00% |
| SUNOCO LP 6.625% 08/15/32 144A, due Aug 15, 2032 | 0.00% | 0.39% | 0.00% |
| KODIAK GAS SER 6.5% 10/33 144A, due Oct 1, 2033 | 0.00% | 0.10% | 0.00% |
| MKS INC CV 1.25% 06/01/30 | 0.00% | 0.01% | 0.00% |
| ALPHABET SER A PC 6.25% 5/29 | 0.00% | 0.10% | 0.00% |
| ALPHABET SER B PC 6.25% 5/29 | 0.00% | 0.10% | 0.00% |
| ANTERO 5.75% 10/15/33 144A, due Oct 15, 2033 | 0.00% | 0.22% | 0.00% |
| KODIAK GAS SV 6.75% 10/35 144A, due Oct 1, 2035 | 0.00% | 0.17% | 0.00% |
| DOTDASH ME 7.625% 6/15/32 144A, due Jun 15, 2032 | 0.00% | 0.19% | 0.00% |
| EDISON INTL 6.25% 03/15/30, due Mar 15, 2030 | 0.00% | 0.01% | 0.00% |
| MNRL RS LTD 6.25% 5/1/34 144A, due May 1, 2034 | 0.00% | 0.16% | 0.00% |
| SATURN OIL & GA 8.5% 7/31 144A, due Jul 30, 2031 | 0.00% | 0.42% | 0.00% |
| SKYWORKS SOLUTI 5.75% 01/10/32, due Jan 10, 2032 | 0.00% | 0.05% | 0.00% |
| ORACLE CORP 5.7% 02/04/36, due Feb 4, 2036 | 0.00% | 0.16% | 0.00% |
| CVR ENERGY 7.875% 2/34 144A, due Feb 15, 2034 | 0.00% | 0.23% | 0.00% |
| CORPORACIO NA 5.529% 1/37 144A, due Jan 30, 2037 | 0.00% | 0.37% | 0.00% |
| PROSUS NV 4.193% 01/19/32 144A, due Jan 19, 2032 | 0.00% | 0.29% | 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.