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GMOCvsVMBSETF Comparison

ETF 1

GMOC

GMO Ultra-Short Income ETF

This fund is part of

US Aggregate Bonds

+0.03%

Full GMOC fund page

VS

ETF 2

VMBS

Vanguard Mortgage-Backed Securities ETF

This fund is part of

MBS & ABS

-0.04%

Full VMBS fund page

GMO Ultra-Short Income ETF (GMOC) belongs to the US Aggregate Bonds segment. Vanguard Mortgage-Backed Securities ETF (VMBS) is part of the MBS & ABS segment. GMOC's top 3 sector exposures are Sovereign, Industrials and Government Agencies. In contrast, VMBS's top sector exposures are Industrials, Finance and Government Agencies. GMOC is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.03% for VMBS. GMOC is up 3.26% year-to-date (YTD) with +$27M in YTD flows. VMBS performs worse with -2.15% YTD performance, and +$1.63B in YTD flows. Run a side-by-side ETF comparison of GMOC and VMBS 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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GMOC vs VMBS performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 10/16/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	GMOC VMBS	+0.40%-0.19%	+1.03%-2.25%	+3.26%-2.15%	n/a-1.72%	n/a+16.80%	n/a-0.21%
Flows	GMOC VMBS	+$2M+$148M	+$2M+$692M	+$27M+$1.63B	-+$1.24B	--$931M	-+$2.96B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	GMOC VMBS	+0.21%+5.39%	n/a+4.28%	n/a+5.37%	n/a+6.49%
Max drawdown	GMOC VMBS	-0.01%-4.22%	n/a-5.75%	n/a-5.75%	n/a-16.74%
Max drawdown duration	GMOC VMBS	4d52d	n/a229d	n/a229d	n/a1398d

Trading data

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	GMOC	VMBS
Last sale 10/16/2026 at 1:30 PM	$50.14	$44.91
Previous close 10/15/2026	$50.13	$44.93
Consolidated volume 10/15/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of September 30, 2026

1-year trailing difference

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GMOC

is actively managed and doesn’t replicate an index

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	GMOC	VMBS
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 10/16/2026 at 1:30 PM

Live

Closed

	GMOC	VMBS
Last price	$50.14	$44.91
1D performance	+0.02%	-0.04%
AuM	$34.47 M	$15.75 B
E/R	0.2%	0.03%

Characteristics

	GMOC	VMBS
Management strategy	Active	Passive
Provider	GMO	Vanguard
Benchmark	-	Bloomberg U.S. MBS Float Adjusted Index
N° of holdings	19	698
Asset class	-	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	October 27, 2025	November 19, 2009
ESG	No	No

More GMOC data on Trackinsight

More VMBS data on Trackinsight

Exposure

Countries

GMOC

USA

27.87%

Other

72.13%

VMBS

USA

26.03%

Other

73.97%

Sectors

GMOC

Sovereign

25.94%

Other

74.06%

VMBS

Industrials

25.62%

Other

74.38%

Diversification

GMOC

Total weight of top 15 holdings out of 15

61.58%

VMBS

Total weight of top 15 holdings out of 15

3.67%

Top 15 holdings

Data as of August 31, 2026

GMOC

US94949GAW15

7.64%

US48249VBE02

5.10%

US95023AAL44

4.95%

US69702EAJ47

4.65%

US87167NDL64

4.42%

US05684GAQ91

4.21%

USA, Notes 3.5% 31jan2028, USD (U-2028)

4.03%

USA, Notes 3.875% 31dec2027, USD (AH-2027)

4.01%

US39809TAW71

3.95%

USA, Notes 3.375% 30nov2027, USD (BL-2027)

3.46%

US92332NBC83

3.37%

US07132JBL70

3.19%

USA, Notes 3.5% 30sep2027, USD (BH-2027)

3.12%

USA, Notes 3.625% 31aug2027, USD (BG-2027)

2.86%

USA, Notes FRN 31jul2028, USD (BF-2028)

2.63%

VMBS

G2 MB0025, 5% 20nov2054, USD (ABS)

0.28%

US3618N56H72

0.28%

US3618N6K636

0.26%

US3618N6BE68

0.26%

US3140Y9B864

0.26%

G2 MB0024, 4.5% 20nov2054, USD (ABS)

0.25%

US21H0606A46

0.25%

US3132E0TL66

0.25%

US3142J6DY61

0.24%

US3618N6HU47

0.23%

FR SD8146, 2% 1may2051, USD (ABS)

0.23%

US3618N6FL65

0.23%

US01F0526982

0.22%

US3142J6C840

0.22%

FR RQ0056, 5.5% 1oct2055, USD (ABS)

0.21%

Frequently asked questions about GMOC and VMBS

How have the GMOC and VMBS ETFs performed in 2026?

As of October 16, 2026, GMOC is up 3.26% year-to-date (YTD), while VMBS has lost -2.15%. That puts GMOC better performer ahead so far this year.

Which ETF is attracting more investor money: GMOC or VMBS?

Year-to-date, the GMOC ETF saw +$27M in flows, compared to +$1.63B for VMBS.

Which ETF is bigger: GMOC or VMBS?

As of October 16, 2026, GMOC holds $34.47 M in assets under management (AUM), while VMBS manages $15.75 B.

What sectors do the GMOC and VMBS ETFs invest in?

GMOC leans toward sectors like Sovereign. Meanwhile, VMBS focuses on Industrials.

What are the top holdings of the GMOC ETF and VMBS ETF?

GMOC top holdings include US94949GAW15, US48249VBE02 and US95023AAL44. VMBS holds in its top three: G2 MB0025, 5% 20nov2054, USD (ABS), US3618N56H72 and US3618N6K636.

GMOCvsVMBSETF Comparison

GMO Ultra-Short Income ETF

Vanguard Mortgage-Backed Securities ETF

GMOC vs VMBS 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 GMOC and VMBS ETFs performed in 2026?

As of October 16, 2026, GMOC is up 3.26% year-to-date (YTD), while VMBS has lost -2.15%. That puts GMOC better performer ahead so far this year.

Which ETF is attracting more investor money: GMOC or VMBS?

Year-to-date, the GMOC ETF saw +$27M in flows, compared to +$1.63B for VMBS.

Which ETF is bigger: GMOC or VMBS?

As of October 16, 2026, GMOC holds $34.47 M in assets under management (AUM), while VMBS manages $15.75 B.

What sectors do the GMOC and VMBS ETFs invest in?

GMOC leans toward sectors like Sovereign. Meanwhile, VMBS focuses on Industrials.

What are the top holdings of the GMOC ETF and VMBS ETF?

GMOC top holdings include US94949GAW15, US48249VBE02 and US95023AAL44. VMBS holds in its top three: G2 MB0025, 5% 20nov2054, USD (ABS), US3618N56H72 and US3618N6K636.

Which ETF is more diversified: GMOC or VMBS?

GMOC holds 57 securities with 61.58% of its assets in the top 15. VMBS has 4834 securities and a top 15 weight of 3.67%.

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