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

270 holdings in all 2 funds

Fund	BGRN	IUSB	Positions	Holdings
BGRNiShares Trust iShares USD Green Bond ETF	—	1% 270 shared	310	as of Oct 20, 2026issuer data
IUSBiShares Trust iShares Core Universal USD Bond ETF	1% 270 shared	—	18,254	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	BGRN	IUSB	Smallest
EUROPEAN INVESTMENT BANK 3.75%, due Feb 14, 2033	2.18%	0.02%	0.02%
EUROPEAN INVESTMENT BANK 4.38%, due Oct 10, 2031	2.01%	0.01%	0.01%
KFW MTN 0.75%, due Sep 30, 2030	0.80%	0.01%	0.01%
KFW 4.38%, due Feb 28, 2034	0.91%	0.01%	0.01%
GACI FIRST INVESTMENT CO MTN RegS 4.88%, due Feb 14, 2035	0.89%	0.01%	0.01%
FORD MOTOR COMPANY 3.25%, due Feb 12, 2032	1.00%	0.01%	0.01%
GACI FIRST INVESTMENT CO MTN RegS 5.25%, due Oct 13, 2032	0.78%	0.01%	0.01%
ISRAEL (STATE OF) 4.5%, due Jan 17, 2033	0.89%	0.01%	0.01%
GACI FIRST INVESTMENT CO MTN RegS 4.75%, due Feb 14, 2030	0.81%	0.01%	0.01%
KFW 1.75%, due Sep 14, 2029	0.90%	0.01%	0.01%
SAUDI AWWAL BANK SJSC MTN RegS 5.95%, due Sep 4, 2035	0.55%	0.00%	0.00%
CHILE (REPUBLIC OF) 3.5%, due Jan 25, 2050	0.74%	0.00%	0.00%
NEXTERA ENERGY CAPITAL HOLDINGS IN 1.9%, due Jun 15, 2028	0.71%	0.00%	0.00%
DP WORLD CRESCENT LTD RegS 5.5%, due Sep 13, 2033	0.67%	0.00%	0.00%
GACI FIRST INVESTMENT CO MTN RegS 5.13%, due Feb 14, 2053	0.64%	0.00%	0.00%
PERUSAHAAN PENERBIT SURAT BERHARGA RegS 4.7%, due Jun 6, 2032	0.68%	0.00%	0.00%
FORD MOTOR COMPANY 6.1%, due Aug 19, 2032	0.82%	0.00%	0.00%
VERIZON COMMUNICATIONS INC 3.88%, due Feb 8, 2029	0.49%	0.00%	0.00%
EUROPEAN INVESTMENT BANK 0.75%, due Sep 23, 2030	0.63%	0.00%	0.00%
SAUDI ELECTRICITY SUKUK PROGRAMME RegS 5.49%, due Feb 18, 2035	0.59%	0.00%	0.00%
QATAR (STATE OF) MTN RegS 4.75%, due May 29, 2034	0.68%	0.00%	0.00%
VERIZON COMMUNICATIONS INC 5.05%, due May 9, 2033	0.46%	0.00%	0.00%
PERUSAHAAN PENERBIT SURAT BERHARGA RegS 5.2%, due Jul 23, 2035	0.49%	0.00%	0.00%
CHILE (REPUBLIC OF) 2.55%, due Jan 27, 2032	0.64%	0.00%	0.00%
EXPORT-IMPORT BANK OF KOREA 3.75%, due Jan 13, 2029	0.57%	0.00%	0.00%
EUROPEAN INVESTMENT BANK MTN 1.63%, due Oct 9, 2029	0.43%	0.00%	0.00%
HONG KONG SPECIAL ADMINISTRATIVE R MTN 144A, due Jun 10, 2030	0.40%	0.00%	0.00%
RWE FINANCE US LLC 144A, due Apr 16, 2034	0.46%	0.00%	0.00%
ERP OPERATING LP 1.9%, due Dec 1, 2028	0.20%	0.00%	0.00%
HONG KONG SPECIAL ADMINISTRATIVE R MTN 144A, due Jan 11, 2033	0.34%	0.00%	0.00%
MIZUHO FINANCIAL GROUP INC 5.78%, due Jul 6, 2029	0.69%	0.00%	0.00%
AVANGRID INC 3.8%, due Jun 1, 2029	0.34%	0.00%	0.00%
NEW YORK STATE ELECTRIC & GAS CORP 144A, due Aug 15, 2028	0.16%	0.00%	0.00%
NORINCHUKIN BANK/THE 144A, due Sep 22, 2031	0.19%	0.00%	0.00%
ABU DHABI NATIONAL ENERGY COMPANY MTN RegS 4.7%, due Apr 24, 2033	0.38%	0.00%	0.00%
ABU DHABI NATIONAL ENERGY COMPANY MTN RegS 5.13%, due Aug 3, 2031	0.36%	0.00%	0.00%
RWE FINANCE US LLC 144A, due Apr 16, 2054	0.43%	0.00%	0.00%
EXPORT-IMPORT BANK OF KOREA MTN RegS 1.75%, due Oct 19, 2028	0.44%	0.00%	0.00%
GENERAL MOTORS CO 5.4%, due Oct 15, 2029	0.49%	0.00%	0.00%
NSTAR ELECTRIC CO 3.25%, due May 15, 2029	0.18%	0.00%	0.00%
SK BATTERY AMERICA INC RegS 4.25%, due Jan 22, 2029	0.48%	0.00%	0.00%
GENERAL MOTORS CO 5.6%, due Oct 15, 2032	0.57%	0.00%	0.00%
MIDAMERICAN ENERGY COMPANY 3.65%, due Apr 15, 2029	0.38%	0.00%	0.00%
MIDAMERICAN ENERGY COMPANY 5.85%, due Sep 15, 2054	0.45%	0.00%	0.00%
CHINA HUANENG GROUP (HONG KONG) TR RegS 4.15%, due Dec 31, 2079	0.46%	0.00%	0.00%
PROLOGIS LP 4.63%, due Jan 15, 2033	0.30%	0.00%	0.00%
BOSTON PROPERTIES LP 4.5%, due Dec 1, 2028	0.47%	0.00%	0.00%
SAUDI ELECTRICITY SUKUK PROGRAMME RegS 4.63%, due Apr 11, 2033	0.45%	0.00%	0.00%
TOYOTA MOTOR CREDIT CORP 2.15%, due Feb 13, 2030	0.37%	0.00%	0.00%
VERIZON COMMUNICATIONS INC 1.5%, due Sep 18, 2030	0.40%	0.00%	0.00%
NEW DEVELOPMENT BANK MTN RegS 4.68%, due Nov 7, 2027	0.55%	0.00%	0.00%
KUNTARAHOITUS OYJ MTN 144A, due Oct 9, 2029	0.35%	0.00%	0.00%
ABN AMRO BANK NV 144A, due Dec 13, 2029	0.45%	0.00%	0.00%
HONG KONG SPECIAL ADMINISTRATIVE R MTN 144A, due Jun 7, 2033	0.32%	0.00%	0.00%
MTR CORP LTD MTN RegS 1.63%, due Aug 19, 2030	0.48%	0.00%	0.00%
EXPORT DEVELOPMENT CANADA 4.75%, due Jun 5, 2034	0.45%	0.00%	0.00%
WISCONSIN POWER AND LIGHT COMPANY 1.95%, due Sep 16, 2031	0.12%	0.00%	0.00%
NORINCHUKIN BANK/THE 144A, due Mar 9, 2028	0.23%	0.00%	0.00%
DUKE ENERGY FLORIDA LLC 2.5%, due Dec 1, 2029	0.32%	0.00%	0.00%
ERP OPERATING LP 2.05%, due Jan 15, 2032	0.29%	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.