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
73 holdings in all 2 funds| Fund | BIV | MFSB | Positions | Holdings |
|---|---|---|---|---|
| BIVVanguard Intermediate-Term Bond ETF | — | 2% 73 shared |
2,377 | as of Sep 30, 2026issuer data |
| MFSBMFS Active Core Plus Bond ETF | 2% 73 shared | — | 406 | as of May 31, 2026SEC filing |
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
2.1% common weight| Holding | BIV | MFSB | Smallest |
|---|---|---|---|
| Oracle Corp 5.7%, due Feb 4, 2036 | 0.10% | 0.30% | 0.10% |
| Bank of America Corp 5.288%, due Apr 25, 2034 | 0.08% | 0.08% | 0.08% |
| Salesforce Inc 5.55%, due Mar 15, 2036 | 0.08% | 0.46% | 0.08% |
| Oracle Corp 5.2%, due Sep 26, 2035 | 0.09% | 0.08% | 0.08% |
| Boeing Co/The 6.528%, due May 1, 2034 | 0.07% | 0.55% | 0.07% |
| Goldman Sachs Group Inc/The 2.65%, due Oct 21, 2032 | 0.07% | 0.09% | 0.07% |
| Wells Fargo & Co 3.35%, due Mar 2, 2033 | 0.07% | 0.11% | 0.07% |
| Philip Morris International Inc 5.375%, due Feb 15, 2033 | 0.06% | 0.18% | 0.06% |
| JPMorgan Chase & Co 4.946%, due Oct 22, 2035 | 0.06% | 0.53% | 0.06% |
| Goldman Sachs Group Inc/The 3.102%, due Feb 24, 2033 | 0.06% | 0.45% | 0.06% |
| Salesforce Inc 5.2%, due Mar 15, 2033 | 0.05% | 0.19% | 0.05% |
| JPMorgan Chase & Co 5.766%, due Apr 22, 2035 | 0.05% | 0.15% | 0.05% |
| Bank of America Corp 5.744%, due Feb 12, 2036 | 0.05% | 0.45% | 0.05% |
| Broadcom Inc 4.8%, due Feb 15, 2036 | 0.05% | 0.32% | 0.05% |
| Mexico Government International Bond 6%, due May 7, 2036 | 0.07% | 0.05% | 0.05% |
| Philip Morris International Inc 5.25%, due Feb 13, 2034 | 0.04% | 0.04% | 0.04% |
| Barclays PLC 7.437%, due Nov 2, 2033 | 0.04% | 0.32% | 0.04% |
| Morgan Stanley 5.664%, due Apr 17, 2036 | 0.04% | 0.56% | 0.04% |
| JBS NV/JBS USA Foods Group Holdings Inc/JBS USA Food Co Holdings 5.75%, due Apr 1, 2033 | 0.04% | 0.27% | 0.04% |
| T-Mobile USA Inc 4.95%, due Nov 15, 2035 | 0.04% | 0.13% | 0.04% |
| Panama Government International Bond 6.7%, due Jan 26, 2036 | 0.04% | 0.04% | 0.04% |
| Charter Communications Operating LLC / Charter Communications Operating Capital 6.384%, due Oct 23, 2035 | 0.04% | 0.13% | 0.04% |
| Rogers Communications Inc 3.8%, due Mar 15, 2032 | 0.03% | 0.44% | 0.03% |
| Broadcom Inc 5.2%, due Apr 15, 2032 | 0.03% | 0.06% | 0.03% |
| Arthur J Gallagher & Co 5.15%, due Feb 15, 2035 | 0.03% | 0.33% | 0.03% |
| Pacific Gas and Electric Co 6.95%, due Mar 15, 2034 | 0.03% | 0.06% | 0.03% |
| Occidental Petroleum Corp 5.55%, due Oct 1, 2034 | 0.03% | 0.17% | 0.03% |
| Capital One Financial Corp 6.377%, due Jun 8, 2034 | 0.03% | 0.05% | 0.03% |
| Morgan Stanley 5.942%, due Feb 7, 2039 | 0.03% | 0.06% | 0.03% |
| Bank of America Corp 3.846%, due Mar 8, 2037 | 0.03% | 0.05% | 0.03% |
| Wells Fargo & Co 4.892%, due Sep 15, 2036 | 0.03% | 0.41% | 0.03% |
| American Tower Corp 5.4%, due Jan 31, 2035 | 0.03% | 0.18% | 0.03% |
| Corebridge Financial Inc 5.75%, due Jan 15, 2034 | 0.03% | 0.39% | 0.03% |
| Capital One Financial Corp 5.197%, due Sep 11, 2036 | 0.03% | 0.38% | 0.03% |
| Regal Rexnord Corp 6.4%, due Apr 15, 2033 | 0.02% | 0.33% | 0.02% |
| Targa Resources Corp 6.125%, due Mar 15, 2033 | 0.02% | 0.47% | 0.02% |
| Paychex Inc 5.6%, due Apr 15, 2035 | 0.02% | 0.29% | 0.02% |
| BAT Capital Corp 4.625%, due Mar 22, 2033 | 0.02% | 0.31% | 0.02% |
| Morgan Stanley 5.32%, due Jul 19, 2035 | 0.02% | 0.11% | 0.02% |
| Deutsche Bank AG/New York NY 5.403%, due Sep 11, 2035 | 0.02% | 0.34% | 0.02% |
| Capital One Financial Corp 6.051%, due Feb 1, 2035 | 0.02% | 0.02% | 0.02% |
| BAT Capital Corp 4.742%, due Mar 16, 2032 | 0.02% | 0.06% | 0.02% |
| MetLife Inc 6.35%, due Mar 15, 2055 | 0.02% | 0.04% | 0.02% |
| JBS NV/JBS USA Foods Group Holdings Inc/JBS USA Food Co Holdings 5.95%, due Apr 20, 2035 | 0.02% | 0.37% | 0.02% |
| Plains All American Pipeline LP / PAA Finance Corp 5.7%, due Sep 15, 2034 | 0.02% | 0.06% | 0.02% |
| Boston Properties LP 5.75%, due Jan 15, 2035 | 0.02% | 0.61% | 0.02% |
| Brown & Brown Inc 5.65%, due Jun 11, 2034 | 0.01% | 0.06% | 0.01% |
| Charles Schwab Corp/The 4.914%, due Nov 14, 2036 | 0.01% | 0.16% | 0.01% |
| AutoNation Inc 5.89%, due Mar 15, 2035 | 0.01% | 0.40% | 0.01% |
| Fairfax Financial Holdings Ltd 6%, due Dec 7, 2033 | 0.01% | 0.38% | 0.01% |
| Global Payments Inc 2.9%, due Nov 15, 2031 | 0.01% | 0.39% | 0.01% |
| Targa Resources Partners LP / Targa Resources Partners Finance Corp 4%, due Jan 15, 2032 | 0.01% | 0.10% | 0.01% |
| Highwoods Realty LP 5.35%, due Jan 15, 2033 | 0.01% | 0.59% | 0.01% |
| Plains All American Pipeline LP / PAA Finance Corp 5.6%, due Jan 15, 2036 | 0.01% | 0.43% | 0.01% |
| Triton Container International Ltd / TAL International Container Corp 5.15%, due Feb 15, 2033 | 0.01% | 0.55% | 0.01% |
| Ferguson Enterprises Inc 5%, due Oct 3, 2034 | 0.01% | 0.40% | 0.01% |
| Brown & Brown Inc 5.55%, due Jun 23, 2035 | 0.01% | 0.40% | 0.01% |
| DCP Midstream Operating LP 3.25%, due Feb 15, 2032 | 0.01% | 0.33% | 0.01% |
| Philip Morris International Inc 4.875%, due Apr 30, 2035 | 0.01% | 0.13% | 0.01% |
| CBRE Services Inc 5.95%, due Aug 15, 2034 | 0.01% | 0.45% | 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.