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
553 holdings in all 2 funds| Fund | BSMR | IBMP | Positions | Holdings |
|---|---|---|---|---|
| BSMRInvesco BulletShares 2027 Municipal Bond ETF | — | 20% 553 shared |
2,492 | as of May 31, 2026SEC filing |
| IBMPiShares iBonds Dec 2027 Term Muni Bond ETF | 20% 553 shared | — | 1,867 | 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
19.7% common weight| Holding | BSMR | IBMP | Smallest |
|---|---|---|---|
| New Jersey (State of) 5%, due Jun 1, 2027 | 0.31% | 0.31% | 0.31% |
| California (State of) Health Facilities Financing Authority (Kaiser Permanente) 5%, due Nov 1, 2027 | 0.25% | 0.48% | 0.25% |
| California (State of) 5%, due Dec 1, 2027 | 0.23% | 0.24% | 0.23% |
| Illinois (State of) 5%, due Nov 1, 2027 | 0.20% | 0.27% | 0.20% |
| Illinois (State of) 5%, due Feb 1, 2027 | 0.17% | 0.16% | 0.16% |
| Triborough Bridge & Tunnel Authority (Green Bonds) 5%, due Nov 15, 2027 | 0.16% | 0.23% | 0.16% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2027 | 0.16% | 0.20% | 0.16% |
| Pennsylvania (Commonwealth of) 5%, due Jul 15, 2027 | 0.15% | 0.20% | 0.15% |
| California (State of) 5%, due Apr 1, 2027 | 0.15% | 0.41% | 0.15% |
| Alabama (State of) Public School & College Authority (Social Bonds) 5%, due Nov 1, 2027 | 0.14% | 0.24% | 0.14% |
| California (State of) 5%, due Aug 1, 2027 | 0.18% | 0.13% | 0.13% |
| North Carolina (State of) 5%, due May 1, 2027 | 0.17% | 0.12% | 0.12% |
| Pennsylvania (Commonwealth of) 5%, due Jan 1, 2027 | 0.12% | 0.17% | 0.12% |
| Illinois (State of) 5%, due Sep 1, 2027 | 0.16% | 0.12% | 0.12% |
| New Jersey (State of) Economic Development Authority 4%, due Nov 1, 2027 | 0.11% | 0.20% | 0.11% |
| California (State of) 5%, due Oct 1, 2027 | 0.13% | 0.10% | 0.10% |
| West Virginia (State of) Commissioner of Highways (Surface Transportation) 5%, due Sep 1, 2027 | 0.10% | 0.16% | 0.10% |
| California (State of) 5%, due Apr 1, 2027 | 0.10% | 0.23% | 0.10% |
| Los Angeles (County of), CA Metropolitan Transportation Authority (Green Bonds) 5%, due Jun 1, 2027 | 0.10% | 0.17% | 0.10% |
| New York (City of), NY Municipal Water Finance Authority 5%, due Jun 15, 2027 | 0.09% | 0.12% | 0.09% |
| Triborough Bridge & Tunnel Authority 5%, due Nov 15, 2027 | 0.12% | 0.09% | 0.09% |
| Wisconsin (State of) 5%, due Nov 1, 2027 | 0.12% | 0.09% | 0.09% |
| Texas (State of) 5%, due Oct 1, 2027 | 0.09% | 0.11% | 0.09% |
| Minnesota (State of) 5%, due Aug 1, 2027 | 0.09% | 0.10% | 0.09% |
| California (State of) 5%, due Nov 1, 2027 | 0.12% | 0.09% | 0.09% |
| Los Angeles Unified School District 5%, due Jul 1, 2027 | 0.09% | 0.10% | 0.09% |
| Massachusetts (Commonwealth of) Bay Transportation Authority 5%, due Jul 1, 2027 | 0.09% | 0.14% | 0.09% |
| Minnesota (State of) 5%, due Aug 1, 2027 | 0.09% | 0.09% | 0.09% |
| Greenville County School District 5%, due Dec 1, 2027 | 0.14% | 0.09% | 0.09% |
| Maryland (State of) Department of Transportation 5%, due Oct 1, 2027 | 0.09% | 0.11% | 0.09% |
| Los Angeles Community College District (Election of 2016), due Aug 1, 2027 | 0.09% | 0.15% | 0.09% |
| Conroe Independent School District 5%, due Feb 15, 2027 | 0.09% | 0.15% | 0.09% |
| North Texas Tollway Authority 5%, due Jan 1, 2027 | 0.12% | 0.08% | 0.08% |
| Illinois (State of) Toll Highway Authority 5%, due Jan 1, 2027 | 0.08% | 0.09% | 0.08% |
| Washington (State of) 5%, due Aug 1, 2027 | 0.08% | 0.12% | 0.08% |
| New York (City of), NY 5%, due Aug 1, 2027 | 0.09% | 0.08% | 0.08% |
| Wisconsin (State of) 5%, due May 1, 2027 | 0.08% | 0.10% | 0.08% |
| New York (City of), NY 5%, due Aug 1, 2027 | 0.08% | 0.20% | 0.08% |
| Prince George's (County of), MD 5%, due Jul 15, 2027 | 0.12% | 0.08% | 0.08% |
| Indiana (State of) Finance Authority (Green Bonds) 5%, due Feb 1, 2027 | 0.08% | 0.08% | 0.08% |
| New York (City of), NY 5%, due Aug 1, 2027 | 0.08% | 0.12% | 0.08% |
| California (State of) (Bid Group C) 5%, due Aug 1, 2027 | 0.08% | 0.13% | 0.08% |
| Kentucky (Commonwealth of) Property & Building Commission (No. 112), due Nov 1, 2027 | 0.08% | 0.18% | 0.08% |
| Ohio (State of) Water Development Authority (Water Pollution Control Loan Fund) 5%, due Jun 1, 2027 | 0.10% | 0.08% | 0.08% |
| Massachusetts (Commonwealth of) 5%, due Sep 1, 2027 | 0.08% | 0.08% | 0.08% |
| Michigan (State of) (Garvee) 5%, due Mar 15, 2027 | 0.08% | 0.42% | 0.08% |
| New York (City of), NY 5%, due Aug 1, 2028 | 0.08% | 0.12% | 0.08% |
| Los Angeles Community College District 5%, due Aug 1, 2027 | 0.14% | 0.07% | 0.07% |
| New York (State of) Thruway Authority 5%, due Jan 1, 2027 | 0.08% | 0.07% | 0.07% |
| Ohio (State of) 5%, due May 1, 2027 | 0.09% | 0.07% | 0.07% |
| Palm Beach County School District 5%, due Aug 1, 2027 | 0.12% | 0.07% | 0.07% |
| Broward (County of), FL School Board 5%, due Jul 1, 2027 | 0.07% | 0.12% | 0.07% |
| Nashville (City of) & Davidson (County of), TN Metropolitan Government 5%, due Jul 1, 2027 | 0.07% | 0.07% | 0.07% |
| Idaho (State of) Housing & Finance Association 5%, due Jul 15, 2027 | 0.07% | 0.16% | 0.07% |
| California (State of) 5%, due Nov 1, 2027 | 0.17% | 0.07% | 0.07% |
| Illinois (State of) Toll Highway Authority 5%, due Jan 1, 2027 | 0.07% | 0.20% | 0.07% |
| Massachusetts (Commonwealth of) 5%, due Nov 1, 2027 | 0.07% | 0.11% | 0.07% |
| Columbus (City of), OH 5%, due Apr 1, 2027 | 0.07% | 0.09% | 0.07% |
| California (State of) 5%, due Aug 1, 2027 | 0.08% | 0.07% | 0.07% |
| Louisiana (State of) (Garvee) 5%, due Sep 1, 2027 | 0.07% | 0.08% | 0.07% |
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.