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
480 holdings in all 2 funds| Fund | BSMT | IBMR | Positions | Holdings |
|---|---|---|---|---|
| BSMTInvesco BulletShares 2029 Municipal Bond ETF | — | 19% 480 shared |
1,797 | as of May 31, 2026SEC filing |
| IBMRiShares iBonds Dec 2029 Term Muni Bond ETF | 19% 480 shared | — | 2,005 | 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
18.9% common weight| Holding | BSMT | IBMR | Smallest |
|---|---|---|---|
| New Jersey (State of) 5%, due Jun 1, 2029 | 0.52% | 0.49% | 0.49% |
| California (State of) Infrastructure & Economic Development Bank (California Academy of Sciences) (Green Bonds) 3.25%, due Aug 1, 2029 | 0.32% | 0.69% | 0.32% |
| Pennsylvania (Commonwealth of) 5%, due Jul 15, 2029 | 0.21% | 0.17% | 0.17% |
| Ohio (State of) Water Development Authority 5%, due Dec 1, 2029 | 0.21% | 0.16% | 0.16% |
| Illinois (State of) Toll Highway Authority 5%, due Jan 1, 2029 | 0.18% | 0.15% | 0.15% |
| California (State of) (Bidding Group B) 5%, due Nov 1, 2029 | 0.15% | 0.20% | 0.15% |
| Broward (County of), FL School Board 5%, due Jul 1, 2029 | 0.15% | 0.23% | 0.15% |
| Private Colleges & Universities Authority (Emory University) 5%, due Sep 1, 2029 | 0.15% | 0.24% | 0.15% |
| Ohio (State of) Water Development Authority 5%, due Jun 1, 2029 | 0.14% | 0.21% | 0.14% |
| Board of Regents of the University of Texas System 5%, due Aug 15, 2029 | 0.14% | 0.14% | 0.14% |
| Illinois (State of) 5%, due Dec 1, 2029 | 0.14% | 0.19% | 0.14% |
| Pennsylvania (Commonwealth of) 5%, due Sep 1, 2029 | 0.14% | 0.17% | 0.14% |
| California (State of) 5%, due Apr 1, 2029 | 0.21% | 0.14% | 0.14% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2029 | 0.18% | 0.14% | 0.14% |
| New Mexico (State of) Finance Authority 5%, due Jun 15, 2029 | 0.13% | 0.20% | 0.13% |
| Michigan (State of) 5%, due Nov 15, 2029 | 0.13% | 0.14% | 0.13% |
| Palm Beach County School District 5%, due Aug 1, 2029 | 0.13% | 0.33% | 0.13% |
| Idaho State Building Authority 5%, due Jun 1, 2029 | 0.13% | 0.13% | 0.13% |
| California (State of) 5%, due Nov 1, 2029 | 0.16% | 0.13% | 0.13% |
| Alabama (State of) Public School & College Authority (Social Bonds) 5%, due Nov 1, 2029 | 0.13% | 0.20% | 0.13% |
| New York (State of) Dormitory Authority 5%, due Mar 15, 2032 | 0.14% | 0.12% | 0.12% |
| Permanent University Fund - University of Texas System 5%, due Jul 1, 2029 | 0.11% | 0.14% | 0.11% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2029 | 0.11% | 0.12% | 0.11% |
| Maryland (State of) 5%, due Jun 1, 2029 | 0.12% | 0.11% | 0.11% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2029 | 0.11% | 0.11% | 0.11% |
| Kentucky (Commonwealth of) Property & Building Commission (No. 130), due Nov 1, 2029 | 0.10% | 0.22% | 0.10% |
| South Carolina (State of) Transportation Infrastructure Bank 5%, due Oct 1, 2029 | 0.14% | 0.10% | 0.10% |
| Clark (County of), NV Department of Aviation 5%, due Jul 1, 2029 | 0.10% | 0.33% | 0.10% |
| University of California 5%, due May 15, 2029 | 0.10% | 0.13% | 0.10% |
| New Mexico (State of) Severance Tax Permanent Fund 5%, due Jul 1, 2029 | 0.10% | 0.11% | 0.10% |
| Illinois (State of) Toll Highway Authority 5%, due Jan 1, 2031 | 0.09% | 0.15% | 0.09% |
| California (State of) 5%, due Nov 1, 2029 | 0.20% | 0.09% | 0.09% |
| New York (City of), NY 5%, due Aug 1, 2029 | 0.09% | 0.16% | 0.09% |
| Ohio State University (The) 5%, due Dec 1, 2029 | 0.09% | 0.15% | 0.09% |
| Private Colleges & Universities Authority 5%, due Sep 1, 2029 | 0.09% | 0.15% | 0.09% |
| North Slope (Borough of), AK 5%, due Jun 30, 2029 | 0.08% | 0.28% | 0.08% |
| Rhode Island Health & Educational Building Corp. (Brown University) 5%, due Sep 1, 2029 | 0.08% | 0.22% | 0.08% |
| District of Columbia 5%, due Dec 1, 2031 | 0.08% | 0.09% | 0.08% |
| Chicago (City of), IL Metropolitan Water Reclamation District (Green Bonds) 5%, due Dec 1, 2029 | 0.08% | 0.10% | 0.08% |
| Cook (County of), IL 5%, due Nov 15, 2029 | 0.11% | 0.08% | 0.08% |
| University of California 5%, due May 15, 2029 | 0.23% | 0.08% | 0.08% |
| Illinois State Toll Highway Authority 5%, due Jan 1, 2029 | 0.08% | 0.20% | 0.08% |
| Omaha (City of), NE Public Power District 5%, due Feb 1, 2032 | 0.08% | 0.09% | 0.08% |
| New York (City of), NY 5%, due Aug 1, 2029 | 0.08% | 0.10% | 0.08% |
| Private Colleges & Universities Authority (Emory University) 5%, due Sep 1, 2029 | 0.08% | 0.23% | 0.08% |
| Sales Tax Securitization Corp. 5%, due Jan 1, 2029 | 0.08% | 0.14% | 0.08% |
| Henry County School District 4%, due Aug 1, 2029 | 0.08% | 0.12% | 0.08% |
| Maryland (State of) (Bidding Group 2), due Aug 1, 2031 | 0.08% | 0.08% | 0.08% |
| Maryland (State of) 5%, due Mar 15, 2032 | 0.11% | 0.08% | 0.08% |
| Massachusetts (Commonwealth of) 5%, due Jan 1, 2031 | 0.08% | 0.12% | 0.08% |
| Honolulu (City & County of), HI 5%, due Nov 1, 2029 | 0.07% | 0.12% | 0.07% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2029 | 0.07% | 0.21% | 0.07% |
| Long Island (City of), NY Power Authority 5.25%, due Sep 1, 2029 | 0.07% | 0.10% | 0.07% |
| Chicago (City of), IL Transit Authority (FTA Section 5307 Urbanized Area Formula Funds), due Jun 1, 2029 | 0.08% | 0.07% | 0.07% |
| Illinois (State of) 5%, due Jul 1, 2029 | 0.15% | 0.07% | 0.07% |
| New Jersey (State of) Turnpike Authority 5%, due Jan 1, 2029 | 0.07% | 0.11% | 0.07% |
| New Mexico (State of) 5%, due Mar 1, 2029 | 0.07% | 0.07% | 0.07% |
| Collin County Community College District 5%, due Aug 15, 2032 | 0.07% | 0.09% | 0.07% |
| Ohio (State of) Water Development Authority (Water Pollution Control Loan Fund) 5%, due Dec 1, 2029 | 0.08% | 0.07% | 0.07% |
| New York (City of), NY Municipal Water Finance Authority 5%, due Jun 15, 2029 | 0.17% | 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.