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Wednesday, August 19, 2026The Morning Brief →Sign in
AGGISharesINDEX

iShares Core U.S. Aggregate Bond ETF

$97.75+0.41% today
9710152-WK

The index measures the performance of the total U.S. investment-grade bond market. The fund will invest at least 80% of its assets in the component securities of the underlying index and TBAs that have economic characteristics that are substantially identical to the economic characteristics of the component securities of the underlying index, and the fund will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that the advisor believes will help the fund track the underlying index.

Price & daily flows
97.897.697.497.75DAILY NET FLOWJul 20Jul 29Aug 10Aug 19

SOURCE: MARKET TAPE & DAILY CREATION/REDEMPTION RECORDS · 1M SHOWN

The desk’s read

Flows are quiet — the past month netted out near zero, while the price has returned -2.1% so far this year. At 0.030% a year, nothing comparable on our shelf runs cheaper.

COMPOSED FROM THE FUND’S OWN DAILY RECORDS · UPDATED WITH EACH REFRESH

$127.8Bassets under management
0.030%expense ratio · $3 per $10,000 a year
net flow, trailing month
8.7Mavg daily volume, 30 days
11675holdings · US-domiciled
2003listed September 21, 2003 · beta 0.12
The book at a glance
0.5%0.5%0.5%0.5%0.4%0.4%0.4%0.4%0.4%0.4%0.4%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%0.3%

CELL SIZE IS PORTFOLIO WEIGHT · COLOR IS TODAY’S MOVE · TOP 40 POSITIONS

HoldingsDownload CSV
#HoldingWeightPriceDay52-wk
1TREASURY NOTE0.45%
2TREASURY NOTE0.45%
3US TREASURY N/B 11/34 4.250.45%
4TREASURY NOTE0.45%
5TREASURY NOTE0.44%
6TREASURY NOTE0.44%
7TREASURY NOTE0.44%
8TREASURY NOTE0.41%
9TREASURY NOTE0.38%
10TREASURY NOTE0.37%
11TREASURY NOTE0.36%
12TREASURY NOTE (OLD)0.32%
13TREASURY NOTE0.31%
14TREASURY NOTE0.31%
15TREASURY NOTE0.31%

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Sector weights
Treasury45.35%
MBS Pass-Through23.18%
Industrial5.2%
Financial Institutions5.11%
CMBS1.11%
Sovereign0.97%
Supranational0.9%
Cash and/or Derivatives0.72%
Agency0.37%
ABS0.27%
PORTFOLIO COMPOSITION, LATEST DISCLOSURE
Country weights
United States79.54%
Supranational0.9%
United Kingdom0.71%
Canada0.42%
Mexico0.32%
Japan0.22%
Germany0.2%
Philippines0.14%
PORTFOLIO COMPOSITION, LATEST DISCLOSURE
Performance
1 week+0.3%
1 month-0.5%
3 months-0.3%
6 months-3.2%
YTD-2.1%
1 year
3 years

PRICE RETURN, DISTRIBUTIONS NOT REINVESTED

Net flows
1 week
1 month
3 months
YTD
1 year

CREATION/REDEMPTION DOLLARS, DAILY RECORDS

Monthly net flows
AugSepOctNovDecJanFebMarAprMayJunJul
DAILY CREATION/REDEMPTION RECORDS, TRAILING TWELVE MONTHS
The risk read
4%realized volatility, 30 days (annualized)
4%realized volatility, 1 year
-4.1%deepest fall from a peak, 1 year
-3.6%where it sits vs. that peak today

The top holding is 0.5% of the book; the top ten carry 4%. Spread across 250+ names, it behaves like roughly 214 equally-weighted positions.

VOLATILITY & DRAWDOWN FROM THE DAILY TAPE · CONCENTRATION FROM THE LATEST DISCLOSED BOOK

Options tape
33calls today
3puts today
0.09put/call ratio
5.4Mshares traded
The case against AGG

Due diligence cuts both ways. These funds sit on the same shelf and beat AGG on at least one dimension that matters — the fee, the asset base, or where the money is going.

FundFeeAssetsFlow, 1MThe case
STIP iShares 0-5 Year TIPS Bond ETF0.03%$16B+$288M+$288M in over the monthHead-to-head
MBB iShares MBS ETF0.04%$39B+$26M+$26M in over the monthHead-to-head
IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF0.04%$23.4B+$520M+$520M in over the monthHead-to-head
IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF0.04%$18.7B+$312M+$312M in over the monthHead-to-head
MUB iShares National Muni Bond ETF0.05%$45.8B+$585M+$585M in over the monthHead-to-head
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InstrumentsHarvest substitutesTrade cost at $1MClient tearsheetStress this fund
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