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
25 holdings in all 2 funds| Fund | JHMB | SMBS | Positions | Holdings |
|---|---|---|---|---|
| JHMBJohn Hancock Mortgage-Backed Securities ETF | — | 1% 25 shared |
411 | as of Jun 30, 2026SEC filing |
| SMBSSchwab Mortgage-Backed Securities ETF | 1% 25 shared | — | 4,196 | 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
1.0% common weight| Holding | JHMB | SMBS | Smallest |
|---|---|---|---|
| GINNIE MAE II POOL G2 02/51 FIXED 2, due Feb 20, 2051 | 0.63% | 0.18% | 0.18% |
| GINNIE MAE II POOL G2 07/51 FIXED 2.5, due Jul 20, 2051 | 0.20% | 0.15% | 0.15% |
| GINNIE MAE II POOL G2 10/51 FIXED 3, due Oct 20, 2051 | 0.54% | 0.09% | 0.09% |
| GINNIE MAE II POOL G2 02/51 FIXED 2.5, due Feb 20, 2051 | 0.09% | 0.09% | 0.09% |
| FREDDIE MAC POOL FR 08/50 FIXED 2.5, due Aug 1, 2050 | 0.05% | 0.08% | 0.05% |
| Fannie Mae Pool 5.5%, due Jun 1, 2055 | 0.31% | 0.05% | 0.05% |
| Fannie Mae Pool 5%, due Dec 1, 2054 | 0.67% | 0.05% | 0.05% |
| Fannie Mae Pool 3%, due Apr 1, 2052 | 0.45% | 0.04% | 0.04% |
| Fannie Mae Pool 4%, due Jun 1, 2052 | 0.28% | 0.04% | 0.04% |
| FREDDIE MAC POOL FR 12/52 FIXED 4.5, due Dec 1, 2052 | 0.27% | 0.04% | 0.04% |
| FREDDIE MAC POOL FR 08/52 FIXED 3.5, due Aug 1, 2052 | 0.45% | 0.03% | 0.03% |
| FREDDIE MAC POOL FR 01/52 FIXED 2.5, due Jan 1, 2052 | 0.08% | 0.03% | 0.03% |
| Fannie Mae Pool 5%, due Dec 1, 2054 | 0.23% | 0.03% | 0.03% |
| Fannie Mae Pool 4.5%, due Jun 1, 2052 | 0.12% | 0.03% | 0.03% |
| FREDDIE MAC POOL FR 04/54 FIXED 5.5, due Apr 1, 2054 | 0.16% | 0.02% | 0.02% |
| Fannie Mae Pool 5%, due Oct 1, 2054 | 0.23% | 0.02% | 0.02% |
| FREDDIE MAC POOL FR 01/52 FIXED 2.5, due Jan 1, 2052 | 0.48% | 0.02% | 0.02% |
| GINNIE MAE II POOL G2 06/50 FIXED 2.5, due Jun 20, 2050 | 0.17% | 0.01% | 0.01% |
| FREDDIE MAC POOL FR 05/51 FIXED 3, due May 1, 2051 | 0.09% | 0.01% | 0.01% |
| Fannie Mae Pool 2.5%, due Sep 1, 2051 | 0.16% | 0.01% | 0.01% |
| Fannie Mae Pool 2%, due Sep 1, 2050 | 0.20% | 0.01% | 0.01% |
| FREDDIE MAC POOL FR 09/51 FIXED 2.5, due Sep 1, 2051 | 0.08% | 0.00% | 0.00% |
| FREDDIE MAC POOL FR 02/51 FIXED 2, due Feb 1, 2051 | 0.23% | 0.00% | 0.00% |
| FREDDIE MAC POOL FR 09/52 FIXED 3.5, due Sep 1, 2052 | 0.76% | 0.00% | 0.00% |
| Fannie Mae Pool 3%, due Apr 1, 2052 | 0.16% | 0.00% | 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.