iShares Core U.S. Aggregate Bond ETF holds 13,269 positions and $136.5B in net assets as of May 31, 2026. The largest: United States Treasury 45.7%, Fannie Mae 10.1%, Freddie Mac 6.4%, Government National Mortgage Association 5.6%, Blackrock CASH Funds 2.8%.

What is the expense ratio of AGG?

AGG costs 0.03% a year, from its prospectus.

AGGiShares Core U.S. Aggregate Bond ETF

ETF · iSHARES TRUST

$96.57close Nov 9, 2026

The fund

Holdings as of May 31, 2026, filed with the SEC.

$136.5B

net assets, all share classes

0.03%

yearly cost, from the prospectus

13,269

positions on file

Growth of $100

Total return with dividends reinvested, month by month since September 2019.

$100$105

20192026

+5.1%

last 12 months

+3.9%

a year, over 3 years

+0.2%

a year, over 5 years

Largest holdings

The top 10 issuers of 13,269 positions, by share of the fund.

United States TreasuryBonds: 45.7%
Fannie MaeMortgage-backed: 10.1%
Freddie MacMortgage-backed: 6.4%
Government National Mortgage AssociationMortgage-backed: 5.6%
Blackrock CASH FundsCash and short-term: 2.8%
Umbs, TBAMortgage-backed: 1.3%
BlackRock Funds IIICash and short-term: 0.6%
FHLMC Multifamily Structured Pass Through Certs.Mortgage-backed: 0.6%
Jpmorgan Chase & COBonds: 0.6%
BANK OF America CORPBonds: 0.5%

Countries

Where the holdings are, by share of the fund.

United States96.2%
XX1.0%
Canada1.0%
United Kingdom0.8%
Japan0.5%
Mexico0.3%
Germany0.2%
Australia0.2%
Netherlands0.2%
Ireland0.1%

What it holds

By kind of asset.

Bonds73.4%
Mortgage-backed24.7%
Cash and short-term3.4%
Asset-backed0.3%

From the fund’s Form N-PORT for May 2026 (filed Jul 24, 2026) and its prospectus, via the SEC’s public data sets. Shares of net assets can sum above 100% where a fund holds cash collateral or derivatives.