iShares Core U.S. Aggregate Bond ETF
About
iShares Core U.S. Aggregate Bond ETF (US4642872265) is a US-listed bond ETF tracking the Bloomberg US Aggregate Bond Index. With a expense ratio of 0.03%, it ranks among the lowest-cost options in its category, paying distributions. The fund holds 13,281 positions across 43 regions with 138.1B in assets, with heavy concentration — 77% in United States, 48% in government bonds.
Score Breakdown
Scores are scaled 1–10 on a logarithmic curve relative to all ETFs in the database. Last updated: Jun 22, 2026
| Component | Score | Details |
|---|---|---|
| Cost (30%) | 9.2 | Tracking Difference: 8.9 · TD Consistency: — · Expense Ratio: 10.0 |
| Liquidity (25%) | 10.0 | Assets Under Management |
Data sources: provider factsheets, exchange data, and NAV history. Information for educational purposes only — not investment advice.
Ticker AGG
ISIN
Fund Size $138.1B
Issuer iShares
Distribution Pays Distributions
Replication Physical
Inception Sep 2003
Base Currency USD
Index Bloomberg US Aggregate Bond Index
Asset Class Bonds
Category Aggregate Bond
Costs
9.2 This fund has low total costs, with competitive tracking and expense ratios.
Expense Ratio0.00%
Expense Ratio0.00%
| Metric | Value |
|---|---|
| Expense Ratio | 0.03% |
Cumulative Returns
Performance across different time periods.
Year to Date+0.00%
1 Year+0.00%
3 Years+0.00%
5 Years+0.00%
Inception+0.00%
Year to Date+0.00%
1 Year+0.00%
3 Years+0.00%
5 Years+0.00%
Inception+0.00%
| Period | Cumulative Return |
|---|---|
| 1 Month | — |
| 3 Months | — |
| 6 Months | — |
| 1 Year | +5.13% |
| 3 Years | +3.95% |
| 5 Years | +0.18% |
| 10 Years | +1.67% |
| YTD | +0.46% |
| Since Inception | +3.15% |
Holdings
This fund invests into 13,281 individual investments.
View all holdings (50)
| # | Holding | Ticker | Weight |
|---|---|---|---|
| 1 | BLACKROCK CASH CL INST SL AGENCY | — | 263.73% |
| 2 | United States Treasury Note/Bond | — | 42.01% |
| 3 | United States Treasury Note/Bond | — | 40.90% |
| 4 | United States Treasury Note/Bond | — | 40.85% |
| 5 | United States Treasury Note/Bond | — | 40.69% |
| 6 | United States Treasury Note/Bond | — | 40.54% |
| 7 | United States Treasury Note/Bond | — | 40.26% |
| 8 | United States Treasury Note/Bond | — | 39.48% |
| 9 | United States Treasury Note/Bond | — | 39.09% |
| 10 | United States Treasury Note/Bond | — | 38.80% |
| 11 | United States Treasury Note/Bond | — | 38.55% |
| 12 | United States Treasury Note/Bond | — | 38.14% |
| 13 | United States Treasury Note/Bond | — | 36.38% |
| 14 | United States Treasury Note/Bond | — | 35.91% |
| 15 | United States Treasury Note/Bond | — | 34.86% |
| 16 | United States Treasury Note/Bond | — | 32.92% |
| 17 | United States Treasury Note/Bond | — | 32.62% |
| 18 | United States Treasury Note/Bond | — | 32.37% |
| 19 | TREASURY NOTE (OTR) | — | 31.83% |
| 20 | United States Treasury Note/Bond | — | 31.58% |
| 21 | United States Treasury Note/Bond | — | 31.14% |
| 22 | United States Treasury Note/Bond | — | 31.13% |
| 23 | United States Treasury Note/Bond | — | 30.84% |
| 24 | United States Treasury Note/Bond | — | 30.67% |
| 25 | United States Treasury Note/Bond | — | 29.85% |
| 26 | United States Treasury Note/Bond | — | 29.43% |
| 27 | United States Treasury Note/Bond | — | 28.97% |
| 28 | United States Treasury Note/Bond | — | 28.73% |
| 29 | United States Treasury Note/Bond | — | 28.34% |
| 30 | United States Treasury Note/Bond | — | 28.30% |
| 31 | United States Treasury Note/Bond | — | 28.03% |
| 32 | United States Treasury Note/Bond | — | 27.42% |
| 33 | United States Treasury Note/Bond | — | 27.30% |
| 34 | United States Treasury Note/Bond | — | 27.21% |
| 35 | United States Treasury Note/Bond | — | 26.69% |
| 36 | United States Treasury Note/Bond | — | 26.33% |
| 37 | United States Treasury Note/Bond | — | 26.28% |
| 38 | United States Treasury Note/Bond | — | 26.21% |
| 39 | United States Treasury Note/Bond | — | 25.19% |
| 40 | United States Treasury Note/Bond | — | 24.93% |
| 41 | United States Treasury Note/Bond | — | 24.83% |
| 42 | United States Treasury Note/Bond | — | 24.34% |
| 43 | United States Treasury Note/Bond | — | 23.98% |
| 44 | United States Treasury Note/Bond | — | 23.83% |
| 45 | United States Treasury Note/Bond | — | 23.78% |
| 46 | United States Treasury Note/Bond | — | 23.70% |
| 47 | United States Treasury Note/Bond | — | 23.64% |
| 48 | United States Treasury Note/Bond | — | 22.99% |
| 49 | United States Treasury Note/Bond | — | 22.95% |
| 50 | United States Treasury Note/Bond | — | 22.81% |
Sectors
Allocation by industry sector.
| Sector | Weight |
|---|---|
| Government Bonds | 4825.00% |
| Corporate Bonds | 2480.00% |
| Unknown | 1864.00% |
| Securitized Bonds | 797.00% |
| Financials | 48.00% |
| Technology | 15.00% |
| Health Care | 7.00% |
| Industrials | 7.00% |
| Utilities | 7.00% |
| Consumer Staples | 4.00% |
| Materials | 4.00% |
| Consumer Discretionary | 3.00% |
| Energy | 2.00% |
Regions
Geographic allocation by country of risk.
| Country | Weight |
|---|---|
| United States | 7688.00% |
| UNKNOWN | 1744.00% |
| Canada | 96.00% |
| SNAT | 90.00% |
| United Kingdom | 83.00% |
| Japan | 51.00% |
| Mexico | 33.00% |
| Germany | 19.00% |
| Australia | 18.00% |
| Netherlands | 18.00% |
| Spain | 13.00% |
| Ireland | 13.00% |
| Philippines | 13.00% |
| Indonesia | 11.00% |
| Chile | 10.00% |
| Singapore | 10.00% |
| South Korea | 9.00% |
| Panama | 9.00% |
| Cayman Islands | 8.00% |
| Peru | 8.00% |
| Poland | 8.00% |
| France | 7.00% |
| Israel | 6.00% |
| Luxembourg | 6.00% |
| Uruguay | 6.00% |
| MULT | 4.00% |
| Austria | 3.00% |
| Switzerland | 3.00% |
| Norway | 3.00% |
| Bermuda | 2.00% |
| Italy | 2.00% |
| XS | 2.00% |
| Hungary | 1.00% |
| Jersey | 1.00% |
| Liberia | 1.00% |
| Sweden | 1.00% |
| Belgium | 0.00% |
| Brazil | 0.00% |
| China | 0.00% |
| Finland | 0.00% |
| Guernsey | 0.00% |
| Hong Kong SAR China | 0.00% |
| Isle of Man | 0.00% |
| British Virgin Islands | 0.00% |
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