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
607 holdings in all 2 funds| Fund | BSMS | IBMQ | Positions | Holdings |
|---|---|---|---|---|
| BSMSInvesco BulletShares 2028 Municipal Bond ETF | — | 19% 607 shared |
2,104 | as of May 31, 2026SEC filing |
| IBMQiShares iBonds Dec 2028 Term Muni Bond ETF | 19% 607 shared | — | 2,952 | 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
19.5% common weight| Holding | BSMS | IBMQ | Smallest |
|---|---|---|---|
| New Jersey (State of) 5%, due Jun 1, 2028 | 0.27% | 0.36% | 0.27% |
| California (State of) 5%, due Nov 1, 2028 | 0.18% | 0.21% | 0.18% |
| New York (City of), NY 5%, due Aug 1, 2028 | 0.18% | 0.17% | 0.17% |
| Nebraska (State of) Public Power District 5%, due Jul 1, 2028 | 0.17% | 0.15% | 0.15% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2028 | 0.14% | 0.25% | 0.14% |
| California (State of) 5%, due Apr 1, 2028 | 0.14% | 0.20% | 0.14% |
| Virginia (Commonwealth of) College Building Authority (21st Century College and Equipment Programs), due Feb 1, 2028 | 0.13% | 0.15% | 0.13% |
| Pennsylvania (Commonwealth of) 5%, due Jan 1, 2028 | 0.13% | 0.42% | 0.13% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2028 | 0.13% | 0.16% | 0.13% |
| Mississippi (State of) 5%, due Oct 1, 2028 | 0.13% | 0.20% | 0.13% |
| Snohomish County School District No. 201 Snohomish, due Dec 1, 2028 | 0.12% | 0.15% | 0.12% |
| California (State of) 5%, due Aug 1, 2028 | 0.13% | 0.12% | 0.12% |
| Clark (County of), NV Department of Aviation 5%, due Jul 1, 2028 | 0.12% | 0.33% | 0.12% |
| Pennsylvania (Commonwealth of) 5%, due Jul 15, 2028 | 0.12% | 0.14% | 0.12% |
| New York (State of) Dormitory Authority 5%, due Mar 15, 2030 | 0.11% | 0.12% | 0.11% |
| Triborough Bridge & Tunnel Authority (MTA Bridges & Tunnels) 5%, due Nov 15, 2028 | 0.11% | 0.12% | 0.11% |
| California (State of) 5%, due Nov 1, 2028 | 0.11% | 0.15% | 0.11% |
| New Jersey (State of) Economic Development Authority 5%, due Mar 1, 2028 | 0.11% | 0.53% | 0.11% |
| California (State of) 5%, due Oct 1, 2030 | 0.10% | 0.37% | 0.10% |
| Illinois (State of) 5%, due Nov 1, 2028 | 0.38% | 0.10% | 0.10% |
| Pennsylvania (Commonwealth of) 5%, due Jan 15, 2028 | 0.10% | 0.21% | 0.10% |
| New York (City of), NY 5%, due Aug 1, 2028 | 0.10% | 0.21% | 0.10% |
| Triborough Bridge & Tunnel Authority (Green Bonds) 5%, due Nov 15, 2028 | 0.10% | 0.10% | 0.10% |
| Alabama (State of) Public School & College Authority (Social Bonds) 5%, due Nov 1, 2028 | 0.10% | 0.18% | 0.10% |
| Ohio (State of) Water Development Authority 5%, due Jun 1, 2028 | 0.09% | 0.17% | 0.09% |
| Illinois (State of) 5%, due Oct 1, 2028 | 0.09% | 0.32% | 0.09% |
| Hillsborough (County of), FL School Board (Master Lease Program) 5%, due Jul 1, 2030 | 0.09% | 0.15% | 0.09% |
| Virginia (Commonwealth of) College Building Authority (21st Century College and Equipment Programs), due Feb 1, 2028 | 0.09% | 0.11% | 0.09% |
| Texas (State of) 5%, due Oct 1, 2028 | 0.09% | 0.13% | 0.09% |
| Michigan (State of) 5%, due Nov 15, 2028 | 0.12% | 0.08% | 0.08% |
| New York (State of) Dormitory Authority 5%, due Mar 15, 2031 | 0.11% | 0.08% | 0.08% |
| New York (City of), NY Transitional Finance Authority 5%, due Jul 15, 2030 | 0.08% | 0.10% | 0.08% |
| Oklahoma (State of) Turnpike Authority 5%, due Jan 1, 2028 | 0.08% | 0.27% | 0.08% |
| Boys Town (Village of), NE (Boys Town) 3%, due Sep 1, 2028 | 0.08% | 0.10% | 0.08% |
| New Mexico (State of) Finance Authority 5%, due Jun 15, 2028 | 0.08% | 0.14% | 0.08% |
| Central Florida Expressway Authority 5%, due Jul 1, 2028 | 0.08% | 0.10% | 0.08% |
| Energy Northwest (No. 1), due Jul 1, 2028 | 0.08% | 0.13% | 0.08% |
| California (State of) 5%, due Oct 1, 2028 | 0.08% | 0.14% | 0.08% |
| New York (City of), NY 5%, due Aug 1, 2028 | 0.08% | 0.19% | 0.08% |
| Sales Tax Securitization Corp. 5%, due Jan 1, 2028 | 0.08% | 0.11% | 0.08% |
| Triborough Bridge & Tunnel Authority (MTA Bridges & Tunnels) 5%, due May 15, 2028 | 0.11% | 0.08% | 0.08% |
| New York (State of) Dormitory Authority (Bidding Group 2), due Mar 15, 2030 | 0.10% | 0.08% | 0.08% |
| Ohio (State of) Water Development Authority 5%, due Dec 1, 2028 | 0.08% | 0.18% | 0.08% |
| California (State of) Public Works Board 5%, due Aug 1, 2028 | 0.08% | 0.17% | 0.08% |
| Ohio (State of) Turnpike & Infrastructure Commission (Infrastructure) 5%, due Feb 15, 2030 | 0.14% | 0.07% | 0.07% |
| San Antonio (City of), TX 5%, due Aug 1, 2028 | 0.07% | 0.08% | 0.07% |
| Virginia (Commonwealth of) College Building Authority (21st Century College and Equipments Programs), due Feb 1, 2030 | 0.07% | 0.07% | 0.07% |
| Indiana (State of) Finance Authority 5%, due Jun 1, 2028 | 0.07% | 0.15% | 0.07% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2028 | 0.07% | 0.10% | 0.07% |
| Wake (County of), NC 5%, due Mar 1, 2028 | 0.07% | 0.07% | 0.07% |
| California (State of) 5%, due Nov 1, 2028 | 0.09% | 0.07% | 0.07% |
| California (State of) 5%, due Aug 1, 2028 | 0.07% | 0.12% | 0.07% |
| New Mexico (State of) Severance Tax Permanent Fund 5%, due Jul 1, 2028 | 0.07% | 0.12% | 0.07% |
| Denver (City & County of), CO 5%, due Aug 1, 2028 | 0.13% | 0.07% | 0.07% |
| Harris (County of), TX Toll Road Authority (The) 5%, due Aug 15, 2028 | 0.17% | 0.07% | 0.07% |
| Pennsylvania (Commonwealth of) 5%, due May 1, 2028 | 0.07% | 0.09% | 0.07% |
| New York (City of), NY 5%, due Aug 1, 2028 | 0.13% | 0.07% | 0.07% |
| Massachusetts (Commonwealth of) 5%, due Jul 1, 2028 | 0.07% | 0.07% | 0.07% |
| California (State of) 5%, due Oct 1, 2028 | 0.07% | 0.09% | 0.07% |
| Illinois (State of) 5%, due Feb 1, 2028 | 0.15% | 0.07% | 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.