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
40 holdings in all 2 funds| Fund | BSMQ | IBMQ | Positions | Holdings |
|---|---|---|---|---|
| BSMQInvesco BulletShares 2026 Municipal Bond ETF | — | 1% 40 shared |
1,987 | as of May 31, 2026SEC filing 31% has matured since |
| IBMQiShares iBonds Dec 2028 Term Muni Bond ETF | 1% 40 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
1.1% common weight| Holding | BSMQ | IBMQ | Smallest |
|---|---|---|---|
| New Jersey (State of) Transportation Trust Fund Authority 5%, due Jun 15, 2028 | 0.20% | 0.14% | 0.14% |
| San Francisco (City & County of), CA Public Utilities Commission 5%, due Nov 1, 2028 | 0.11% | 0.18% | 0.11% |
| Pennsylvania (Commonwealth of) 5%, due Sep 15, 2028 | 0.10% | 0.19% | 0.10% |
| Michigan (State of) Finance Authority (Clean Water Revolving Fund) 5%, due Oct 1, 2028 | 0.08% | 0.08% | 0.08% |
| Georgia (State of) Municipal Electric Authority (Project One) 5%, due Jan 1, 2028 | 0.06% | 0.05% | 0.05% |
| California (State of) (Bid Group C) 5%, due Aug 1, 2028 | 0.04% | 0.08% | 0.04% |
| New York (City of), NY Municipal Water Finance Authority 5%, due Jun 15, 2028 | 0.04% | 0.16% | 0.04% |
| Delaware (State of) Transportation Authority 3%, due Jul 1, 2028 | 0.03% | 0.03% | 0.03% |
| Maryland (State of) Department of Transportation (Second Issue) 5%, due Oct 1, 2028 | 0.09% | 0.03% | 0.03% |
| Kentucky (Commonwealth of) Property & Building Commission (No. 112), due Nov 1, 2028 | 0.03% | 0.04% | 0.03% |
| Texas A&M University 4%, due May 15, 2028 | 0.03% | 0.03% | 0.03% |
| Illinois (State of) 5%, due Nov 1, 2028 | 0.03% | 0.07% | 0.03% |
| Hawaii (State of) 5%, due Oct 1, 2028 | 0.03% | 0.04% | 0.03% |
| Norfolk (City of), VA 4%, due Oct 1, 2028 | 0.03% | 0.04% | 0.03% |
| Hawaii (State of) 5%, due Oct 1, 2028 | 0.08% | 0.03% | 0.03% |
| Municipal Improvement Corp. of Los Angeles (Real Property) 5%, due Nov 1, 2028 | 0.03% | 0.03% | 0.03% |
| District of Columbia 5%, due Jun 1, 2028 | 0.05% | 0.02% | 0.02% |
| Tennessee (State of) 5%, due Aug 1, 2028 | 0.02% | 0.02% | 0.02% |
| Chicago (City of), IL Metropolitan Water Reclamation District (Green Bonds) 5%, due Dec 1, 2028 | 0.02% | 0.05% | 0.02% |
| King County School District No. 405 Bellevue, due Dec 1, 2028 | 0.02% | 0.08% | 0.02% |
| Iowa (State of) 5%, due Jun 1, 2028 | 0.02% | 0.02% | 0.02% |
| California (State of) Department of Water Resources (Central Valley) 5%, due Dec 1, 2028 | 0.03% | 0.02% | 0.02% |
| California (State of) 4%, due Sep 1, 2028 | 0.02% | 0.02% | 0.02% |
| Houston (City of), TX 5%, due Nov 15, 2028 | 0.08% | 0.02% | 0.02% |
| New Jersey (State of) Transportation Trust Fund Authority 5%, due Jun 15, 2028 | 0.01% | 0.15% | 0.01% |
| New York (City of), NY Municipal Water Finance Authority 5%, due Jun 15, 2028 | 0.10% | 0.01% | 0.01% |
| Bexar (County of), TX 5%, due Jun 15, 2028 | 0.17% | 0.01% | 0.01% |
| New York (State of) Dormitory Authority 5%, due Mar 15, 2028 | 0.02% | 0.01% | 0.01% |
| Indiana (State of) Finance Authority 5%, due Jun 1, 2028 | 0.01% | 0.08% | 0.01% |
| Virginia (Commonwealth of) College Building Authority 5%, due Sep 1, 2028 | 0.03% | 0.01% | 0.01% |
| Denver City & County School District No. 1, due Dec 1, 2028 | 0.01% | 0.03% | 0.01% |
| Clark (County of), NV 5%, due Nov 1, 2028 | 0.01% | 0.10% | 0.01% |
| Harris (County of), TX Metropolitan Transit Authority 5%, due Nov 1, 2028 | 0.04% | 0.01% | 0.01% |
| New York (City of), NY 5%, due Aug 1, 2028 | 0.01% | 0.05% | 0.01% |
| Indiana University 5%, due Jun 1, 2028 | 0.01% | 0.06% | 0.01% |
| Houston (City of), TX 5%, due Mar 1, 2028 | 0.01% | 0.06% | 0.01% |
| New York (State of) Dormitory Authority 5%, due Oct 1, 2028 | 0.01% | 0.02% | 0.01% |
| Spring Independent School District 5%, due Aug 15, 2028 | 0.00% | 0.08% | 0.00% |
| County of Harris TX 5%, due Aug 15, 2028 | 0.00% | 0.04% | 0.00% |
| Phoenix Civic Improvement Corp. 5%, due Jul 1, 2028 | 0.00% | 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.