GMMFvsIEFETF Comparison

ETF 1

GMMF

iShares Government Money Market ETF

This fund is part of

Money Market Bonds

+0.01%

Full GMMF fund page

ETF 2

IEF

iShares 7-10 Year Treasury Bond ETF

This fund is part of

US Government Bonds

-0.27%

Full IEF fund page

iShares Government Money Market ETF (GMMF) belongs to the Money Market Bonds segment. iShares 7-10 Year Treasury Bond ETF (IEF) is part of the US Government Bonds segment. GMMF's top 2 sector exposures are Sovereign and Government Agencies. In contrast, IEF's top sector exposures are Sovereign and Non-Corporate. GMMF is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.15% for IEF. GMMF is up 2.81% year-to-date (YTD) with +$103M in YTD flows. IEF performs worse with -3.44% YTD performance, and -$977M in YTD flows. Run a side-by-side ETF comparison of GMMF and IEF below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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GMMF vs IEF performance and flow charts

Performance

Cumulative Flows

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Data Services

Historic performance and flows

Data as of 10/19/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	GMMF IEF	+0.29%-0.82%	+0.89%-2.69%	+2.81%-3.44%	+3.59%-3.91%	n/a+13.31%	n/a-7.89%
Flows	GMMF IEF	+$4M-$72M	+$15M-$4.16B	+$103M-$977M	+$110M+$5.91B	-+$16.04B	-+$33.92B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	GMMF IEF	+0.10%+5.29%	+0.10%+4.80%	n/a+6.15%	n/a+7.65%
Max drawdown	GMMF IEF	n/a-4.27%	n/a-6.81%	n/a-6.88%	n/a-20.43%
Max drawdown duration	GMMF IEF	n/a55d	n/a232d	n/a319d	n/a1779d

Trading data

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	GMMF	IEF
Last sale 10/20/2026 at 1:30 PM		$90.25
Previous close 10/19/2026		$90.08
Consolidated volume 10/19/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of October 21, 2026

1-year trailing difference

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GMMF

is actively managed and doesn’t replicate an index

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	GMMF	IEF
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 10/20/2026 at 1:30 PM

Live

Closed

	GMMF	IEF
Last price	–	$90.25
1D performance	–	+0.19%
AuM	$194.57 M	$41.53 B
E/R	0.2%	0.15%

Characteristics

	GMMF	IEF
Management strategy	Active	Passive
Provider	iShares	iShares
Benchmark	-	ICE US Treasury 7-10 Year Bond Index
N° of holdings	127	17
Asset class	-	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	February 4, 2025	July 22, 2002
ESG	No	No

More GMMF data on Trackinsight

More IEF data on Trackinsight

Exposure

Countries

GMMF

USA

92.27%

Other

7.73%

IEF

USA

96.87%

Other

3.13%

Sectors

GMMF

Sovereign

76.23%

Government Agenci.

16.05%

Other

7.73%

IEF

Sovereign

95.76%

Other

4.24%

Diversification

GMMF

Total weight of top 15 holdings out of 15

64.88%

IEF

Total weight of top 15 holdings out of 15

100.18%

Top 15 holdings

Data as of August 31, 2026

GMMF

USA, Bills 0% 22sep2026, USD (119D)

10.05%

USA, Bills 0% 1sep2026, USD (119D)

8.50%

USA, Bills 0% 1oct2026, USD (364D)

8.46%

USA, Bills 0% 24sep2026, USD (182D)

8.09%

USA, Bills 0% 6oct2026, USD (119D)

7.73%

USA, Bills 0% 15sep2026, USD (119D)

5.61%

USA, Bills 0% 29sep2026, USD (119D)

4.19%

USA, Bills 0% 8sep2026, USD (119D)

2.10%

USA, Bills 0% 28jan2027, USD (182D)

1.91%

USA, Notes FRN 30apr2028, USD (BB-2028)

1.84%

USA, Bills 0% 3sep2026, USD (364D)

1.70%

USA, Bills 0% 17nov2026, USD (119D)

1.35%

US912797WF00

1.25%

Federal Farm Credit Banks, FRN 20oct2026, USD

1.05%

US3133EWYH78

1.05%

IEF

USA, Notes 4.125% 15feb2036, USD (B-2036)

9.32%

USA, Notes 4.375% 15may2036, USD (C-2036)

8.83%

USA, Notes 4.625% 15feb2035, USD (B-2035)

8.76%

USA, Notes 4.25% 15nov2034, USD (F-2034)

8.74%

USA, Notes 4% 15nov2035, USD (F-2035)

8.63%

USA, Notes 4.375% 15may2034, USD (C-2034)

8.42%

USA, Notes 4.25% 15may2035, USD (C-2035)

8.32%

USA, Notes 4.25% 15aug2035, USD (E-2035)

8.27%

USA, Notes 4% 15feb2034, USD (B-2034)

8.13%

USA, Notes 4.5% 15nov2033, USD (F-2033)

7.02%

USA, Notes 3.875% 15aug2034, USD (E-2034)

6.74%

US91282CRF04

3.83%

USA, Notes 3.875% 15aug2033, USD (E-2033)

3.30%

BlackRock Cash Funds - Treasury

1.11%

USA, Bonds 4.5% 15feb2036, USD

0.77%

Frequently asked questions about GMMF and IEF

How have the GMMF and IEF ETFs performed in 2026?

As of October 19, 2026, GMMF is up 2.81% year-to-date (YTD), while IEF has lost -3.44%. That puts GMMF better performer ahead so far this year.

Which ETF is attracting more investor money: GMMF or IEF?

Year-to-date, the GMMF ETF saw +$103M in flows, compared to -$977M for IEF.

Which ETF is more volatile: GMMF or IEF?

Over the past year, GMMF had a volatility of 0.1%, while IEF experienced 4.8%.

Which ETF is bigger: GMMF or IEF?

As of October 19, 2026, GMMF holds $194.57 M in assets under management (AUM), while IEF manages $41.53 B.

What sectors do the GMMF and IEF ETFs invest in?

GMMF leans toward sectors like Sovereign and Government Agencies. Meanwhile, IEF focuses on Sovereign.

What are the top holdings of the GMMF ETF and IEF ETF?

GMMF top holdings include USA, Bills 0% 22sep2026, USD (119D), USA, Bills 0% 1sep2026, USD (119D) and USA, Bills 0% 1oct2026, USD (364D). IEF holds in its top three: USA, Notes 4.125% 15feb2036, USD (B-2036), USA, Notes 4.375% 15may2036, USD (C-2036) and USA, Notes 4.625% 15feb2035, USD (B-2035).

GMMFvsIEFETF Comparison

iShares Government Money Market ETF

iShares 7-10 Year Treasury Bond ETF

GMMF vs IEF performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the GMMF and IEF ETFs performed in 2026?

As of October 19, 2026, GMMF is up 2.81% year-to-date (YTD), while IEF has lost -3.44%. That puts GMMF better performer ahead so far this year.

Which ETF is attracting more investor money: GMMF or IEF?

Year-to-date, the GMMF ETF saw +$103M in flows, compared to -$977M for IEF.

Which ETF is more volatile: GMMF or IEF?

Over the past year, GMMF had a volatility of 0.1%, while IEF experienced 4.8%.

Which ETF is bigger: GMMF or IEF?

As of October 19, 2026, GMMF holds $194.57 M in assets under management (AUM), while IEF manages $41.53 B.

What sectors do the GMMF and IEF ETFs invest in?

GMMF leans toward sectors like Sovereign and Government Agencies. Meanwhile, IEF focuses on Sovereign.

What are the top holdings of the GMMF ETF and IEF ETF?

GMMF top holdings include USA, Bills 0% 22sep2026, USD (119D), USA, Bills 0% 1sep2026, USD (119D) and USA, Bills 0% 1oct2026, USD (364D). IEF holds in its top three: USA, Notes 4.125% 15feb2036, USD (B-2036), USA, Notes 4.375% 15may2036, USD (C-2036) and USA, Notes 4.625% 15feb2035, USD (B-2035).

Which ETF is more diversified: GMMF or IEF?

GMMF holds 153 securities with 64.88% of its assets in the top 15. IEF has 17 securities and a top 15 weight of 100.18%.

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