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
12 holdings in all 2 funds| Fund | CGSM | TAXX | Positions | Holdings |
|---|---|---|---|---|
| CGSMCapital Group Short Duration Municipal Income ETF | — | 1% 12 shared |
1,100 | as of Oct 20, 2026issuer data |
| TAXXBondBloxx IR+M Tax Aware Short Duration ETF | 1% 12 shared | — | 306 | as of Jul 31, 2026SEC filing |
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
0.9% common weight| Holding | CGSM | TAXX | Smallest |
|---|---|---|---|
| BLACK BELT ENERGY GAS DIST AL BBEUTL 12/53 ADJUSTABLE VAR, due Dec 15, 2053 | 0.19% | 0.30% | 0.19% |
| ILLINOIS ST FIN AUTH REVENUE ILSGEN 11/30 FIXED 5, due Nov 15, 2030 | 0.16% | 0.22% | 0.16% |
| CENTRL PLAINS ENERGY PROJ NE G CENPWR 05/53 ADJUSTABLE VAR, due May 15, 2053 | 0.15% | 0.36% | 0.15% |
| MAIN STREET NATURAL GAS INC GA MAIUTL 07/52 ADJUSTABLE VAR, due Jul 15, 2052 | 0.09% | 0.10% | 0.09% |
| AQUARION WTR AUTH CT WTR SYS R AQUWTR 08/29 FIXED 5, due Aug 15, 2029 | 0.08% | 0.37% | 0.08% |
| TEXAS ST MUNI GAS ACQUISITION TMGUTL 01/54 ADJUSTABLE VAR, due Jan 15, 2054 | 0.06% | 1.28% | 0.06% |
| KENTUCKY ST PUBLIC ENERGY AUTH KYSPWR 02/50 ADJUSTABLE VAR, due Feb 15, 2050 | 0.06% | 0.11% | 0.06% |
| CHATTANOOGA TN HLTH EDUCTNL H CHAMFH 12/29 ADJUSTABLE VAR, due Dec 15, 2029 | 0.04% | 0.35% | 0.04% |
| BURKE CNTY GA DEV AUTH POLL CO BURPOL 10/32 ADJUSTABLE VAR, due Oct 15, 2032 | 0.03% | 0.24% | 0.03% |
| MONTANA ST BRD OF HSG MFH REVE MTSHSG 11/46 ADJUSTABLE VAR, due Nov 15, 2046 | 0.02% | 0.35% | 0.02% |
| NEVADA ST HSG DIV NEVHSG 07/28 ADJUSTABLE VAR, due Jul 15, 2028 | 0.01% | 0.21% | 0.01% |
| DECATUR GA HSG AUTH MF HSG REV DECHSG 09/28 ADJUSTABLE VAR, due Sep 15, 2028 | 0.01% | 0.35% | 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.