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

99 holdings in all 2 funds
FundCGMUGMUBPositionsHoldings
CGMUCapital Group Municipal Income ETF —5%
99 shared
2,628as of Oct 20, 2026issuer data
GMUBGoldman Sachs Municipal Income ETF 5%
99 shared
— 903as 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

5.0% common weight
HoldingCGMUGMUBSmallest
PUERTO RICO SALES TAX FING COR PRCGEN 07/40 FIXED 4.329, due Jul 15, 20400.57%1.80%0.57%
SOUTHEAST ENERGY AUTHORITY A C SEEPWR 10/30 FIXED 5, due Oct 15, 20300.55%0.34%0.34%
BLACK BELT ENERGY GAS DIST AL BBEUTL 04/36 FIXED 5.5, due Apr 15, 20360.72%0.32%0.32%
BLACK BELT ENERGY GAS DIST AL BBEUTL 06/31 FIXED 5, due Jun 15, 20310.21%0.19%0.19%
ALABAMA ST TOLL ROAD BRIDGE ATRTRN 10/32 FIXED 5, due Oct 15, 20320.28%0.16%0.16%
CALIFORNIA CMNTY CHOICE FING A CCEDEV 06/36 FIXED 5, due Jun 15, 20360.37%0.16%0.16%
MAIN STREET NATURAL GAS INC GA MAIUTL 08/52 ADJUSTABLE VAR, due Aug 15, 20520.26%0.16%0.16%
BLACK BELT ENERGY GAS DIST AL BBEUTL 12/34 FIXED 5, due Dec 15, 20340.12%0.40%0.12%
COLORADO ST HLTH FACS AUTH REV COSMED 12/34 FIXED 5, due Dec 15, 20340.12%0.13%0.12%
ENERGY S E AL A COOPERATIVE DI ESDPWR 07/54 ADJUSTABLE VAR, due Jul 15, 20540.15%0.08%0.08%
CHICAGO IL BRD OF EDU DEDICATE CHIEDU 04/46 FIXED OID 6, due Apr 15, 20460.08%0.16%0.08%
MAIN STREET NATURAL GAS INC GA MAIUTL 05/54 ADJUSTABLE VAR, due May 15, 20540.09%0.08%0.08%
MIAMI DADE CNTY FL AVIATION RE MIATRN 10/40 FIXED 5, due Oct 15, 20400.12%0.08%0.08%
LOUISIANA PUB FACS AUTH REVENU LASFAC 05/42 FIXED 5, due May 15, 20420.15%0.08%0.08%
NEW YORK ST TRANSPRTN DEV CORP NYTTRN 10/40 FIXED 5, due Oct 15, 20400.08%0.08%0.08%
WHITING IN ENVRNMNTL FACS REVE WHGFAC 12/44 ADJUSTABLE VAR, due Dec 15, 20440.08%0.08%0.08%
INDIANA ST FIN AUTH ECON DEV R INSGEN 02/39 ADJUSTABLE VAR, due Feb 15, 20390.07%0.16%0.07%
PUERTO RICO SALES TAX FING COR PRCGEN 07/46 ZEROCPNOID 0, due Jul 15, 20460.15%0.07%0.07%
CALIFORNIA ST CAS 12/28 FIXED 5, due Dec 15, 20280.07%0.49%0.07%
PUERTO RICO CMWLTH AQUEDUCT PRCUTL 07/47 FIXED 5, due Jul 15, 20470.07%0.23%0.07%
SAINT JOHN THE BAPTIST PARISH SJBCTF 06/37 ADJUSTABLE VAR, due Jun 15, 20370.07%0.12%0.07%
DELAWARE ST ECON DEV AUTH REVE DESDEV 10/40 ADJUSTABLE VAR, due Oct 15, 20400.07%0.07%0.07%
CALIFORNIA CMNTY CHOICE FING A CCEDEV 02/55 ADJUSTABLE VAR, due Feb 15, 20550.07%0.32%0.07%
ILLINOIS FIN AUTH SURFACE FREI ILSTRN 12/50 ADJUSTABLE VAR, due Dec 15, 20500.07%0.15%0.07%
MIAMI DADE CNTY FL AVIATION RE MIATRN 10/37 FIXED 5, due Oct 15, 20370.06%0.08%0.06%
TEXAS ST MUNI GAS ACQUISITION TGAUTL 01/36 FIXED 5, due Jan 15, 20360.06%0.16%0.06%
BLACK BELT ENERGY GAS DIST AL BBEUTL 12/55 ADJUSTABLE VAR, due Dec 15, 20550.06%0.21%0.06%
SAN ANTONIO TX ELEC GAS REVE SANUTL 02/56 ADJUSTABLE VAR, due Feb 15, 20560.06%0.15%0.06%
PUERTO RICO SALES TAX FING COR PRCGEN 07/40 FIXED 4.329, due Jul 15, 20400.19%0.05%0.05%
SAN ANTONIO TX ELEC GAS REVE SANUTL 02/55 ADJUSTABLE VAR, due Feb 15, 20550.05%0.07%0.05%
PORT OF SEATTLE WA REVENUE PTSGEN 07/29 FIXED 5, due Jul 15, 20290.05%0.09%0.05%
NEW YORK ST HSG FIN AGY REVENU NYSHSG 05/66 ADJUSTABLE VAR, due May 15, 20660.05%0.15%0.05%
NEW YORK ST TRANSPRTN DEV CORP NYTTRN 10/35 FIXED 5, due Oct 15, 20350.05%0.28%0.05%
CHICAGO IL BRD OF EDU CHIEDU 12/38 FIXED 6, due Dec 15, 20380.11%0.04%0.04%
NEW YORK CITY NY TRANSITIONAL NYCGEN 11/44 FIXED 5.25, due Nov 15, 20440.04%0.40%0.04%
NEW YORK CITY NY TRANSITIONAL NYCGEN 08/42 ADJUSTABLE VAR, due Aug 15, 20420.10%0.04%0.04%
HOUSTON TX ARPT SYS REVENUE HOUAPT 07/35 FIXED 5.5, due Jul 15, 20350.04%0.04%0.04%
BLACK BELT ENERGY GAS DIST AL BBEUTL 06/51 ADJUSTABLE VAR, due Jun 15, 20510.10%0.04%0.04%
ILLINOIS ST FIN AUTH REVENUE ILSGEN 07/42 FIXED 5, due Jul 15, 20420.04%0.10%0.04%
ENERGY S E AL A COOPERATIVE DI ESDPWR 04/34 FIXED 5, due Apr 15, 20340.12%0.04%0.04%
NEW YORK CITY NY TRANSITIONAL NYCGEN 02/41 FIXED 5, due Feb 15, 20410.04%0.08%0.04%
BLACK BELT ENERGY GAS DIST AL BBEUTL 03/55 ADJUSTABLE VAR, due Mar 15, 20550.07%0.04%0.04%
CARROLL CNTY KY ENVRNMNTL FACS CRRENV 10/34 FIXED 4.25, due Oct 15, 20340.03%0.07%0.03%
SOUTHEAST ENERGY AUTHORITY A C SEEPWR 03/55 ADJUSTABLE VAR, due Mar 15, 20550.22%0.03%0.03%
HOUSTON TX ARPT SYS REVENUE HOUAPT 07/28 FIXED 5, due Jul 15, 20280.03%0.19%0.03%
NEW YORK ST ENVRNMNTL FACS COR NYSENV 09/50 ADJUSTABLE VAR, due Sep 15, 20500.03%0.04%0.03%
PUERTO RICO CMWLTH PRC 07/33 FIXED 4, due Jul 15, 20330.03%0.09%0.03%
CALIFORNIA CMNTY CHOICE FING A CCEDEV 03/36 FIXED 5, due Mar 15, 20360.03%0.16%0.03%
NEW YORK ST TRANSPRTN DEV CORP NYTTRN 01/36 FIXED OID 4, due Jan 15, 20360.03%0.22%0.03%
MICHIGAN ST STRATEGIC FUND LTD MISGEN 04/35 ADJUSTABLE VAR, due Apr 15, 20350.03%0.16%0.03%
MONTGOMERY CNTY PA INDL DEV AU MONDEV 06/29 FIXED 4.1, due Jun 15, 20290.03%0.15%0.03%
ILLINOIS ST FIN AUTH REVENUE ILSGEN 07/38 FIXED 4, due Jul 15, 20380.03%0.03%0.03%
CALIFORNIA ST MUNI FIN AUTH RE CASFIN 06/32 FIXED 5, due Jun 15, 20320.03%0.53%0.03%
MET PIER EXPOSITION AUTH IL MPNFAC 12/29 ZEROCPNOID 0, due Dec 15, 20290.02%0.28%0.02%
HOUSTON TX ARPT SYS REVENUE HOUAPT 07/27 FIXED 5, due Jul 15, 20270.02%0.03%0.02%
CLIFTON TX HGR EDU FIN CORP ED CLIEDU 02/55 ADJUSTABLE VAR, due Feb 15, 20550.02%0.04%0.02%
NEW YORK ST TRANSPRTN DEV CORP NYTTRN 12/36 FIXED 5, due Dec 15, 20360.02%0.10%0.02%
TULSA OK MUNI ARPT TRUST TRUST TULAPT 12/35 FIXED 6.25, due Dec 15, 20350.02%0.04%0.02%
SAINT JAMES PARISH LA REVENUE STJGEN 08/41 ADJUSTABLE VAR, due Aug 15, 20410.02%0.08%0.02%
SALES TAX SECURITIZATION CORP STSGEN 01/29 FIXED 5, due Jan 15, 20290.02%0.16%0.02%

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.