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

iShares Core 5-10 Year USD Bond ETF

$43.13+0.37% today
434552-WK

The fund will invest at least 80% of its assets in the component securities of the index and TBAs that have economic characteristics that are substantially identical to the economic characteristics of the component securities of the index. The index measures the performance of U.S. dollar-denominated taxable bonds that are rated either investment-grade or high yield with remaining effective maturities between five and ten years.

Price & daily flows
44.443.843.343.13DAILY NET FLOWAug 19Dec 16Apr 17Aug 19

SOURCE: MARKET TAPE & DAILY CREATION/REDEMPTION RECORDS · 3Y SHOWN · NET +$75M OVER THIS RANGE

The desk’s read

Money keeps arriving — +$150K of net buying over the past month, while the price has returned -2.3% so far this year. At 0.060% a year, nothing comparable on our shelf runs cheaper.

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

$275Massets under management
0.060%expense ratio · $6 per $10,000 a year
+$150Knet flow, trailing month
35Kavg daily volume, 30 days
2747holdings · US-domiciled
2016listed October 31, 2016 · beta 0.12
The book at a glance
1.1%1.1%1.0%0.9%0.9%0.9%0.9%0.9%0.8%0.8%0.8%0.8%0.8%0.8%0.8%0.8%0.8%0.8%0.8%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.6%0.6%0.6%0.5%0.5%0.5%0.5%0.5%0.5%0.4%0.4%0.4%0.4%

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

HoldingsDownload CSV
#HoldingWeightPriceDay52-wk
1TREASURY NOTE1.15%
2TREASURY NOTE (2OLD)1.13%
3TREASURY NOTE1.02%
4TREASURY NOTE0.93%
5UMBS 30YR TBA(REG A)0.93%
6UMBS 30YR TBA(REG A)0.90%
7UMBS 30YR TBA0.87%
8FNMA 30YR UMBS0.86%
9TREASURY NOTE0.85%
10TREASURY NOTE0.84%
11FNMA 30YR UMBS SUPER0.83%
12TREASURY NOTE0.83%
13TREASURY NOTE0.83%
14TREASURY NOTE (OLD)0.82%
15UMBS 30YR TBA(REG A)0.81%

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Sector weights
MBS Pass-Through47.36%
Treasury22.26%
Industrial12.89%
Financial Institutions7.62%
Sovereign3.07%
Utility1.9%
Agency1.28%
CMBS0.98%
Cash and/or Derivatives0.91%
Supranational0.74%
PORTFOLIO COMPOSITION, LATEST DISCLOSURE
Country weights
United States89.91%
Canada0.93%
Supranational0.74%
United Kingdom0.71%
Saudi Arabia0.49%
Mexico0.45%
Japan0.4%
Brazil0.38%
PORTFOLIO COMPOSITION, LATEST DISCLOSURE
Performance
1 week+0.3%
1 month-0.4%
3 months-0.2%
6 months-3.5%
YTD-2.3%
1 year
3 years

PRICE RETURN, DISTRIBUTIONS NOT REINVESTED

Net flows
1 week+$280K
1 month+$150K
3 months
YTD+$4M
1 year+$26M

CREATION/REDEMPTION DOLLARS, DAILY RECORDS

Monthly net flows
AugSepOctNovDecJanFebMarAprMayJulAug
DAILY CREATION/REDEMPTION RECORDS, TRAILING TWELVE MONTHS
The risk read
4%realized volatility, 30 days (annualized)
4%realized volatility, 1 year
-4.4%deepest fall from a peak, 1 year
-3.7%where it sits vs. that peak today

The top holding is 1.2% of the book; the top ten carry 10%. Spread across 250+ names, it behaves like roughly 133 equally-weighted positions.

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

The case against IMTB

Due diligence cuts both ways. These funds sit on the same shelf and beat IMTB 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-3bp on fee · 58× the assets · +$288M in over the monthHead-to-head
MBB iShares MBS ETF0.04%$39B+$26M-2bp on fee · 142× the assets · +$26M in over the monthHead-to-head
IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF0.04%$23.4B+$520M-2bp on fee · 85× the assets · +$520M in over the monthHead-to-head
IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF0.04%$18.7B+$312M-2bp on fee · 68× the assets · +$312M in over the monthHead-to-head
MUB iShares National Muni Bond ETF0.05%$45.8B+$585M-1bp on fee · 167× the assets · +$585M in over the monthHead-to-head
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InstrumentsHarvest substitutesTrade cost at $1MClient tearsheetStress this fund
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