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

iShares GNMA Bond ETF

$43.77+0.44% today
434552-WK

The fund will invest at least 80% of its assets in the component securities of the underlying index and to-be-announced transactions (“TBAs”) that have economic characteristics that are substantially identical to the economic characteristics of the component securities of the underlying index. The underlying index includes fixed-rate MBS issued by GNMA that have 30- or 15-year maturities. The index measures the performance of mortgage-backed pass-through securities issued by GNMA.

Price & daily flows
44.944.343.843.77DAILY NET FLOWAug 19Dec 16Apr 17Aug 19

SOURCE: MARKET TAPE & DAILY CREATION/REDEMPTION RECORDS · 3Y SHOWN · NET +$105M OVER THIS RANGE

The desk’s read

Money keeps arriving — +$11M of net buying over the past month, about 2.5% of the fund's asset base, while the price has returned -1.4% so far this year. At 0.10% a year it is not the cheapest way in — AGG runs the same ground at 0.03%.

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

$433Massets under management
0.10%expense ratio · $10 per $10,000 a year
+$11Mnet flow, trailing month
59Kavg daily volume, 30 days
279holdings · US-domiciled
2012listed February 13, 2012 · beta 0.13
The book at a glance
2.9%2.2%2.1%2.0%1.9%1.8%1.8%1.8%1.8%1.8%1.6%1.6%1.6%1.4%1.4%1.3%1.3%1.2%1.2%1.2%1.2%1.2%1.1%1.1%1.0%1.0%1.0%1.0%0.9%0.9%0.9%0.9%0.9%0.9%0.8%0.8%0.8%0.8%0.8%

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

HoldingsDownload CSV
#HoldingWeightPriceDay52-wk
1GNMA2 30YR2.89%
2GNMA2 30YR2.19%
3GNMA2 30YR2.12%
4GNMA2 30YR TBA(REG C)2.01%
5GNMA2 30YR1.89%
6GNMA2 30YR1.83%
7GNMA2 30YR1.81%
8GNMA2 30YR1.80%
9GNMA2 30YR1.78%
10GNMA2 30YR TBA(REG C)1.75%
11GNMA2 30YR1.61%
12GNMA2 30YR1.57%
13GNMA2 30YR1.55%
14GNMA2 30YR1.45%
15GNMA2 30YR1.43%

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Sector weights
Agency Fixed Rate98.04%
Cash and/or Derivatives1.9%
PORTFOLIO COMPOSITION, LATEST DISCLOSURE
Performance
1 week+0.4%
1 month-0.3%
3 months-0.1%
6 months-2.8%
YTD-1.4%
1 year
3 years

PRICE RETURN, DISTRIBUTIONS NOT REINVESTED

Net flows
1 week+$3M
1 month+$11M
3 months+$24M
YTD+$40M
1 year+$69M

CREATION/REDEMPTION DOLLARS, DAILY RECORDS

Monthly net flows
AugSepOctNovDecJanFebMarAprMayJulAug
DAILY CREATION/REDEMPTION RECORDS, TRAILING TWELVE MONTHS
The risk read
5%realized volatility, 30 days (annualized)
4%realized volatility, 1 year
-4.2%deepest fall from a peak, 1 year
-3.3%where it sits vs. that peak today

The top holding is 2.9% of the book; the top ten carry 20%. Spread across 250+ names, it behaves like roughly 100 equally-weighted positions.

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

The case against GNMA

Due diligence cuts both ways. These funds sit on the same shelf and beat GNMA 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-7bp on fee · 37× the assets · +$288M in over the monthHead-to-head
MBB iShares MBS ETF0.04%$39B+$26M-6bp on fee · 90× the assets · +$26M in over the monthHead-to-head
IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF0.04%$23.4B+$520M-6bp on fee · 54× the assets · +$520M in over the monthHead-to-head
IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF0.04%$18.7B+$312M-6bp on fee · 43× the assets · +$312M in over the monthHead-to-head
MUB iShares National Muni Bond ETF0.05%$45.8B+$585M-5bp on fee · 106× 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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