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AGG iShares Core U.S. Aggregate Bond ETF
AGG is a Bonds ETF issued by BlackRock. It tracks the Bloomberg U.S. Aggregate Bond index, costs 0.03% a year, and launched in September 2003.
Composition last reviewed 2026-09-08; assets as of 2026-09-24.
Key facts
| Ticker | AGG |
|---|---|
| Full name | iShares Core U.S. Aggregate Bond ETF |
| Issuer | BlackRock |
| Category | Bonds |
| Sub-category | Total Bond |
| Index tracked | Bloomberg U.S. Aggregate Bond |
| Expense ratio | 0.03% |
| Assets under management | $137.67bn |
| Inception | 22 September 2003 |
| Asset class | Fixed Income |
| Region | US |
Sector allocation
- Bonds100%
Geographic exposure
United States vs international
- United States100%
Top 5 holdings
- 1US Treasury Bonds
- 2US Treasury Notes
- 3Government Agency Bonds
- 4Corporate Bonds
- 5Mortgage-Backed Securities
Frequently asked
What is AGG's expense ratio?
iShares Core U.S. Aggregate Bond ETF charges 0.03% a year — $3 on a $10,000 holding.
What index does AGG track?
iShares Core U.S. Aggregate Bond ETF tracks the Bloomberg U.S. Aggregate Bond index.
How large is AGG?
Our dataset puts AGG at about $137.67bn in assets under management (as of 2026-09-24). Assets move with markets and flows, so treat this as a snapshot rather than a current figure.
What are AGG's largest holdings?
The 5 largest holdings in our dataset are US Treasury Bonds, US Treasury Notes, Government Agency Bonds, Corporate Bonds and Mortgage-Backed Securities.