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
78 holdings in all 2 funds| Fund | BSMQ | IBMO | Positions | Holdings |
|---|---|---|---|---|
| BSMQInvesco BulletShares 2026 Municipal Bond ETF | — | 4% 78 shared |
1,987 | as of May 31, 2026SEC filing 31% has matured since |
| IBMOiShares iBonds Dec 2026 Term Muni Bond ETF | 4% 78 shared | — | 259 22% of fund | 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
3.6% common weight| Holding | BSMQ | IBMO | Smallest |
|---|---|---|---|
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2026 | 0.19% | 0.28% | 0.19% |
| California (State of) 5%, due Dec 1, 2026 | 0.18% | 0.28% | 0.18% |
| Illinois (State of) 5%, due Nov 1, 2026 | 0.17% | 0.49% | 0.17% |
| Kentucky (Commonwealth of) Property & Building Commission (No. 112), due Nov 1, 2026 | 0.16% | 0.22% | 0.16% |
| Metropolitan Transportation Authority (Green Bonds) 5%, due Nov 15, 2026 | 0.15% | 0.93% | 0.15% |
| Houston (City of), TX 5%, due Nov 15, 2026 | 0.17% | 0.15% | 0.15% |
| New Jersey (State of) Economic Development Authority 5%, due Nov 1, 2026 | 0.15% | 0.19% | 0.15% |
| Alabama (State of) Public School & College Authority (Social Bonds) 5%, due Nov 1, 2026 | 0.12% | 0.12% | 0.12% |
| Wisconsin (State of) 5%, due Nov 1, 2026 | 0.18% | 0.12% | 0.12% |
| California (State of) 5%, due Nov 1, 2026 | 0.11% | 0.14% | 0.11% |
| Clark (County of), NV 5%, due Nov 1, 2026 | 0.10% | 0.15% | 0.10% |
| Metropolitan Transportation Authority (Green Bonds) 5%, due Nov 15, 2026 | 0.17% | 0.10% | 0.10% |
| Dallas & Fort Worth (Cities of), TX (Dallas/Fort Worth International Airport) 5%, due Nov 1, 2026 | 0.09% | 0.09% | 0.09% |
| Michigan (State of) Finance Authority (Trinity Health Credit Group) 5%, due Dec 1, 2026 | 0.09% | 0.15% | 0.09% |
| Greenville County School District 5%, due Dec 1, 2026 | 0.08% | 0.22% | 0.08% |
| Metropolitan Transportation Authority (Green Bonds) 5%, due Nov 15, 2026 | 0.08% | 0.35% | 0.08% |
| Central Puget Sound Regional Transit Authority (Green Bonds) 5%, due Nov 1, 2026 | 0.06% | 0.17% | 0.06% |
| King & Snohomish Counties School District No. 417 Northshore, due Dec 1, 2026 | 0.06% | 0.06% | 0.06% |
| Missouri (State of) Highway & Transportation Commission 5%, due Nov 1, 2026 | 0.06% | 0.28% | 0.06% |
| Dallas (City of), TX Area Rapid Transit 5%, due Dec 1, 2026 | 0.06% | 0.17% | 0.06% |
| Georgia (State of) 5%, due Dec 1, 2026 | 0.05% | 0.07% | 0.05% |
| Montgomery (County of), MD 5%, due Nov 1, 2026 | 0.06% | 0.05% | 0.05% |
| Chicago (City of), IL Metropolitan Water Reclamation District 5%, due Dec 1, 2026 | 0.38% | 0.05% | 0.05% |
| Mississippi (State of) 5%, due Nov 1, 2026 | 0.05% | 0.13% | 0.05% |
| Cook (County of), IL 5%, due Nov 15, 2026 | 0.05% | 0.07% | 0.05% |
| Harris (County of), TX Metropolitan Transit Authority 5%, due Nov 1, 2026 | 0.04% | 0.07% | 0.04% |
| California State University 5%, due Nov 1, 2026 | 0.05% | 0.04% | 0.04% |
| Illinois (State of) 5%, due Dec 1, 2026 | 0.06% | 0.04% | 0.04% |
| New York & New Jersey (States of) Port Authority 5%, due Dec 1, 2026 | 0.04% | 0.08% | 0.04% |
| California (State of) Department of Water Resources (Central Valley) 5%, due Dec 1, 2026 | 0.04% | 0.04% | 0.04% |
| Colorado Springs (City of), CO 5%, due Nov 15, 2026 | 0.04% | 0.04% | 0.04% |
| Nevada (State of) 5%, due Dec 1, 2026 | 0.04% | 0.16% | 0.04% |
| Santa Clara (County of), CA Water District (Green Bonds) 5%, due Dec 1, 2026 | 0.10% | 0.04% | 0.04% |
| Massachusetts (Commonwealth of) 5%, due Nov 1, 2026 | 0.09% | 0.04% | 0.04% |
| Denver City & County School District No. 1, due Dec 1, 2026 | 0.03% | 0.06% | 0.03% |
| California (State of) Department of Water Resources (Central Valley) 5%, due Dec 1, 2026 | 0.03% | 0.05% | 0.03% |
| Ohio (State of) Water Development Authority (Water Pollution Control Loan Fund) 5%, due Dec 1, 2026 | 0.03% | 0.07% | 0.03% |
| District of Columbia 5%, due Dec 1, 2026 | 0.03% | 0.30% | 0.03% |
| Wisconsin (State of) 5%, due Nov 1, 2026 | 0.03% | 0.14% | 0.03% |
| Triborough Bridge & Tunnel Authority (MTA Bridges & Tunnels) 5%, due Nov 15, 2026 | 0.03% | 0.12% | 0.03% |
| Tennessee (State of) School Bond Authority 5%, due Nov 1, 2026 | 0.03% | 0.16% | 0.03% |
| Triborough Bridge & Tunnel Authority (MTA Bridges & Tunnels) 5%, due Nov 15, 2026 | 0.03% | 0.08% | 0.03% |
| Ohio (State of) Water Development Authority (Water Pollution Control Loan Fund) 5%, due Dec 1, 2026 | 0.03% | 0.04% | 0.03% |
| State of Connecticut 5%, due Nov 15, 2026 | 0.03% | 0.11% | 0.03% |
| Pennsylvania Turnpike Commission 5%, due Dec 1, 2026 | 0.03% | 0.10% | 0.03% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2026 | 0.03% | 0.05% | 0.03% |
| Dallas & Fort Worth (Cities of), TX (Dallas/Fort Worth International Airport) 5%, due Nov 1, 2026 | 0.02% | 0.03% | 0.02% |
| Municipal Improvement Corp. of Los Angeles (Real Property) 5%, due Nov 1, 2026 | 0.02% | 0.19% | 0.02% |
| Harris County Cultural Education Facilities Finance Corp. (Memorial Hermann Health System) 5%, due Dec 1, 2026 | 0.02% | 0.09% | 0.02% |
| North Thurston Public Schools 5%, due Dec 1, 2026 | 0.05% | 0.02% | 0.02% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2026 | 0.02% | 0.04% | 0.02% |
| New York (City of), NY Transitional Finance Authority 5%, due Nov 1, 2026 | 0.21% | 0.02% | 0.02% |
| Metropolitan Transportation Authority 4%, due Nov 15, 2026 | 0.03% | 0.02% | 0.02% |
| Metropolitan Transportation Authority (Green Bonds) 5%, due Nov 15, 2026 | 0.02% | 0.02% | 0.02% |
| California (State of) Department of Water Resources 5%, due Dec 1, 2026 | 0.02% | 0.09% | 0.02% |
| County of Montgomery MD 5%, due Nov 1, 2026 | 0.02% | 0.14% | 0.02% |
| Hamilton (County of), OH 5%, due Dec 1, 2026 | 0.02% | 0.08% | 0.02% |
| Mississippi (State of) 5%, due Dec 1, 2026 | 0.02% | 0.32% | 0.02% |
| California (State of) Health Facilities Financing Authority (Cedars-Sinai Medical Center) 5%, due Nov 15, 2026 | 0.01% | 0.04% | 0.01% |
| California (State of) 4%, due Nov 1, 2026 | 0.01% | 0.17% | 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.