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
28 holdings in all 2 funds| Fund | BKMI | MUB | Positions | Holdings |
|---|---|---|---|---|
| BKMIBNY Mellon Municipal Intermediate ETF | — | 0% 28 shared |
535 | as of May 29, 2026SEC filing |
| MUBiShares National Muni Bond ETF | 0% 28 shared | — | 7,603 | 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
0.5% common weight| Holding | BKMI | MUB | Smallest |
|---|---|---|---|
| NEW JERSEY EDUCATIONAL FACILITIES AUTHORITY (NJ) 5%, due Jul 1, 2064 | 0.55% | 0.09% | 0.09% |
| CONNECTICUT STATE HEALTH AND EDUCATIONAL FACILITIES AUTHORITY (CT) 5%, due Jul 1, 2064 | 0.65% | 0.08% | 0.08% |
| MASSACHUSETTS ST DEV FIN AGY 4%, due Feb 15, 2036 | 0.35% | 0.06% | 0.06% |
| NEW JERSEY EDUCATIONAL FACILITIES AUTHORITY (NJ) 5%, due Jul 1, 2064 | 0.34% | 0.05% | 0.05% |
| TEXAS (TX), STATE OF 5%, due Oct 1, 2040 | 0.65% | 0.02% | 0.02% |
| METROPOLITAN TRANSPORTATION AUTHORITY (NY) 5%, due Nov 15, 2034 | 0.40% | 0.02% | 0.02% |
| NEW YORK N Y CITY TRANSITIONAL FIN AUTH 5%, due Feb 1, 2039 | 0.50% | 0.02% | 0.02% |
| LOWER COLORADO RIVER AUTHORITY (TX) 5%, due May 15, 2045 | 0.40% | 0.02% | 0.02% |
| ILLINOIS (IL), STATE OF 5%, due May 1, 2036 | 0.19% | 0.01% | 0.01% |
| NEW YORK ST DORM AUTH 5%, due Oct 1, 2035 | 0.66% | 0.01% | 0.01% |
| NEW YORK N Y CITY TRANSITIONAL FIN AUTH 5%, due Nov 1, 2040 | 0.20% | 0.01% | 0.01% |
| STATE PROPERTY AND BUILDINGS COMMISSION (KY) 5%, due Apr 1, 2043 | 0.15% | 0.01% | 0.01% |
| METROPOLITAN TRANSPORTATION AUTHORITY (NY) 5%, due Nov 15, 2036 | 0.29% | 0.01% | 0.01% |
| MASSACHUSETTS DEVELOPMENT FINANCE AGENCY (MA) 5%, due Nov 1, 2055 | 0.34% | 0.01% | 0.01% |
| NEW JERSEY (NJ), STATE OF 3%, due Jun 1, 2032 | 0.06% | 0.01% | 0.01% |
| METROPOLITAN TRANSPORTATION AUTHORITY (NY) 5%, due Nov 15, 2051 | 0.29% | 0.01% | 0.01% |
| PENNSYLVANIA (PA), STATE OF 3%, due May 15, 2034 | 0.30% | 0.01% | 0.01% |
| NEW YORK N Y CITY TRANSITIONAL FIN AUTH 5%, due Nov 1, 2033 | 0.26% | 0.01% | 0.01% |
| ILLINOIS STATE TOLL HIGHWAY AUTHORITY (THE) (IL) 5%, due Jan 1, 2042 | 0.20% | 0.01% | 0.01% |
| METROPOLITAN NASHVILLE AIRPORT AUTHORITY (THE) (TN) 5%, due Jul 1, 2043 | 0.18% | 0.01% | 0.01% |
| CHICAGO O'HARE INTERNATIONAL AIRPORT (IL) 5%, due Jan 1, 2041 | 0.13% | 0.01% | 0.01% |
| CHICAGO (IL), CITY OF 5%, due Jan 1, 2029 | 0.48% | 0.01% | 0.01% |
| ALAMEDA CORRIDOR TRANSPORTATION AUTHORITY (CA) 5%, due Oct 1, 2036 | 0.09% | 0.01% | 0.01% |
| PENNSYLVANIA STATE UNIVERSITY (PA) 5%, due Sep 1, 2042 | 0.30% | 0.01% | 0.01% |
| LOS ANGELES CITY DEPARTEMENT OF WATER AND POWER (CA) 5%, due Jul 1, 2041 | 0.13% | 0.00% | 0.00% |
| ILLINOIS (IL), STATE OF 5%, due Mar 1, 2031 | 0.03% | 0.00% | 0.00% |
| CHICAGO TRANSIT AUTHORITY (IL) 5%, due Dec 1, 2042 | 0.23% | 0.00% | 0.00% |
| LOS ANGELES CALIF DEPT WTR & PWR 5%, due Jul 1, 2042 | 0.04% | 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.