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VOvsIMCBETF Comparison

ETF 1

VO

Vanguard Morningstar Mid-Cap ETF

This fund is part of

US Mid Cap

+0.13%

Full VO fund page

VS

ETF 2

IMCB

iShares Morningstar Mid-Cap ETF

This fund is part of

US Mid Cap

+0.13%

Full IMCB fund page

Vanguard Morningstar Mid-Cap ETF (VO) and iShares Morningstar Mid-Cap ETF (IMCB) belong to the same industry segment: US Mid Cap. VO's top 3 sector exposures are Finance, Technology and Industrials. In contrast, IMCB's top sector exposures are Finance, Industrials and Technology. VO is less expensive with a Total Expense Ratio (TER) of 0.03%, versus 0.04% for IMCB. VO is up 13.64% year-to-date (YTD) with +$5.01B in YTD flows. IMCB performs better with 19.81% YTD performance, and +$83M in YTD flows. Run a side-by-side ETF comparison of VO and IMCB 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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VO vs IMCB 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 10/28/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	VO IMCB	+3.24%+3.08%	+0.63%+0.71%	+13.64%+19.81%	+12.86%+19.81%	+74.01%+81.58%	+39.78%+49.82%
Flows	VO IMCB	-$23M+$24M	+$602M+$73M	+$5.01B+$83M	+$6.91B+$269M	+$21.22B+$468M	+$28.76B+$399M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	VO IMCB	+10.58%+10.53%	+12.44%+12.84%	+14.54%+15.00%	+17.51%+17.64%
Max drawdown	VO IMCB	-6.83%-6.39%	-8.12%-8.06%	-18.93%-19.88%	-27.54%-25.13%
Max drawdown duration	VO IMCB	73d73d	49d49d	211d238d	972d835d

Trading data

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	VO	IMCB
Last sale 10/29/2026 at 2:05 PM	$82.23	$98.22
Previous close 10/28/2026	$81.57	$98.17
Consolidated volume 10/28/2026
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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	VO	IMCB
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 10/29/2026 at 2:05 PM

Live

Closed

	VO	IMCB
Last price	$82.23	$98.22
1D performance	+0.81%	+0.05%
AuM	$107.38 B	$1.75 B
E/R	0.03%	0.04%

Characteristics

	VO	IMCB
Management strategy	Passive	Passive
Provider	Vanguard	iShares
Benchmark	CRSP U.S. Mid Cap Index	Morningstar U.S. Mid Cap Index
N° of holdings	277	389
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	January 26, 2004	June 28, 2004
ESG	No	No

More VO data on Trackinsight

More IMCB data on Trackinsight

Exposure

Countries

VO

USA

95.4%

Other

4.6%

IMCB

USA

95.99%

Other

4.01%

Sectors

VO

Finance

20.58%

Technology

16.83%

Industrials

16.07%

Energy

8.72%

Healthcare

8.54%

Utilities

7.66%

Other

21.61%

IMCB

Finance

19.59%

Industrials

15.04%

Technology

15.04%

Healthcare

9.63%

Energy

7.94%

Non-Energy Materi.

7.49%

Other

25.27%

Diversification

VO

Total weight of top 15 holdings out of 15

13.12%

IMCB

Total weight of top 15 holdings out of 15

10.61%

Top 15 holdings

Data as of August 31, 2026

VO

Marathon Petroleum Corp.

1.04%

Valero Energy Corp.

1.01%

Vertiv Holdings Co.

0.95%

Phillips 66

0.94%

Howmet Aerospace, Inc.

0.93%

Cloudflare, Inc.

0.93%

Seagate Technology Holdings Plc

0.88%

Quanta Services, Inc.

0.87%

SLB Ltd.

0.86%

Constellation Energy Corp.

0.85%

DoorDash, Inc.

0.82%

Robinhood Markets, Inc.

0.79%

Motorola Solutions, Inc.

0.77%

Datadog, Inc.

0.75%

Cummins, Inc.

0.74%

IMCB

Dell Technologies, Inc.

0.89%

Automatic Data Processing, Inc.

0.78%

Snowflake, Inc.

0.76%

Freeport-McMoRan, Inc.

0.74%

Marathon Petroleum Corp.

0.74%

The Bank of New York Mellon Corp.

0.73%

Fortinet, Inc.

0.72%

Valero Energy Corp.

0.72%

Phillips 66

0.68%

Cloudflare, Inc.

0.66%

The PNC Financial Services Group, Inc.

0.66%

U.S. Bancorp

0.65%

CSX Corp.

0.64%

The Williams Cos., Inc.

0.62%

3M Co.

0.61%

Frequently asked questions about VO and IMCB

How have the VO and IMCB ETFs performed in 2026?

As of October 28, 2026, VO is up 13.64% year-to-date (YTD), while IMCB has returned 19.81%. That puts IMCB better performer ahead so far this year.

Which ETF is attracting more investor money: VO or IMCB?

Year-to-date, the VO ETF saw +$5.01B in flows, compared to +$83M for IMCB.

Which ETF is more volatile: VO or IMCB?

Over the past year, VO had a volatility of 12.44%, while IMCB experienced 12.84%.

Which ETF is bigger: VO or IMCB?

As of October 28, 2026, VO holds $107.38 B in assets under management (AUM), while IMCB manages $1.75 B.

What sectors do the VO and IMCB ETFs invest in?

VO leans toward sectors like Finance, Technology and Industrials. Meanwhile, IMCB focuses on Finance, Industrials and Technology.

What are the top holdings of the VO ETF and IMCB ETF?

VO top holdings include Marathon Petroleum Corp., Valero Energy Corp. and Vertiv Holdings Co.. IMCB holds in its top three: Dell Technologies, Inc., Automatic Data Processing, Inc. and Snowflake, Inc..

VOvsIMCBETF Comparison

Vanguard Morningstar Mid-Cap ETF

iShares Morningstar Mid-Cap ETF

VO vs IMCB 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 VO and IMCB ETFs performed in 2026?

As of October 28, 2026, VO is up 13.64% year-to-date (YTD), while IMCB has returned 19.81%. That puts IMCB better performer ahead so far this year.

Which ETF is attracting more investor money: VO or IMCB?

Year-to-date, the VO ETF saw +$5.01B in flows, compared to +$83M for IMCB.

Which ETF is more volatile: VO or IMCB?

Over the past year, VO had a volatility of 12.44%, while IMCB experienced 12.84%.

Which ETF is bigger: VO or IMCB?

As of October 28, 2026, VO holds $107.38 B in assets under management (AUM), while IMCB manages $1.75 B.

What sectors do the VO and IMCB ETFs invest in?

VO leans toward sectors like Finance, Technology and Industrials. Meanwhile, IMCB focuses on Finance, Industrials and Technology.

What are the top holdings of the VO ETF and IMCB ETF?

VO top holdings include Marathon Petroleum Corp., Valero Energy Corp. and Vertiv Holdings Co.. IMCB holds in its top three: Dell Technologies, Inc., Automatic Data Processing, Inc. and Snowflake, Inc..

Which ETF is more diversified: VO or IMCB?

VO holds 280 securities with 13.12% of its assets in the top 15. IMCB has 394 securities and a top 15 weight of 10.61%.

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