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VIOGvsIWOETF Comparison

ETF 1

VIOG

Vanguard S&P Small-Cap 600 Growth ETF

This fund is part of

US Small Cap Growth

-0.32%

Full VIOG fund page

VS

ETF 2

IWO

iShares Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

-0.32%

Full IWO fund page

Vanguard S&P Small-Cap 600 Growth ETF (VIOG) and iShares Russell 2000 Growth ETF (IWO) belong to the same industry segment: US Small Cap Growth. VIOG's top 3 sector exposures are Finance, Industrials and Healthcare. In contrast, IWO's top sector exposures are Healthcare, Technology and Industrials. VIOG is less expensive with a Total Expense Ratio (TER) of 0.1%, versus 0.24% for IWO. VIOG is up 16.18% year-to-date (YTD) with +$105M in YTD flows. IWO performs worse with 12.24% YTD performance, and -$533M in YTD flows. Run a side-by-side ETF comparison of VIOG and IWO 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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VIOG vs IWO performance and flow charts

Performance

Cumulative Flows

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Data Services

Historic performance and flows

Data as of 09/18/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	VIOG IWO	-6.70%-6.66%	-4.35%-7.00%	+16.18%+12.24%	+14.46%+12.32%	+49.60%+59.82%	+32.33%+27.02%
Flows	VIOG IWO	+$20M+$383M	+$42M+$219M	+$105M-$533M	+$66M-$363M	+$220M-$579M	+$311M-$286M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	VIOG IWO	+13.72%+17.93%	+17.21%+22.24%	+19.93%+22.96%	+21.42%+24.69%
Max drawdown	VIOG IWO	-8.74%-8.65%	-9.06%-14.82%	-27.38%-28.47%	-29.24%-40.45%
Max drawdown duration	VIOG IWO	45d33d	41d84d	414d280d	980d1409d

Trading data

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	VIOG	IWO
Last sale 9/18/2026 at 1:30 PM	$140.50	$362.09
Previous close 09/17/2026	$140.87	$363.67
Consolidated volume 09/17/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of August 31, 2026

1-year trailing difference

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	VIOG	IWO
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 9/18/2026 at 1:30 PM

Live

Closed

	VIOG	IWO
Last price	$140.50	$362.09
1D performance	-0.26%	-0.43%
AuM	$1.06 B	$14.20 B
E/R	0.1%	0.24%

Characteristics

	VIOG	IWO
Management strategy	Passive	Passive
Provider	Vanguard	iShares
Benchmark	S&P SmallCap 600 Growth Index	Russell 2000 Growth Index
N° of holdings	348	1095
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	September 7, 2010	July 24, 2000
ESG	No	No

More VIOG data on Trackinsight

More IWO data on Trackinsight

Exposure

Countries

VIOG

USA

96.81%

Other

3.19%

IWO

USA

96.07%

Other

3.93%

Sectors

VIOG

Finance

23.11%

Industrials

16.86%

Healthcare

14.93%

Technology

12.77%

Other

32.34%

IWO

Healthcare

29.4%

Technology

17.79%

Industrials

13.73%

Finance

13.29%

Other

25.79%

Diversification

VIOG

Total weight of top 15 holdings out of 15

14.17%

IWO

Total weight of top 15 holdings out of 15

8.65%

Top 15 holdings

Data as of July 31, 2026

VIOG

Corcept Therapeutics, Inc.

1.24%

ViaSat, Inc.

1.18%

Brinker International, Inc.

1.04%

Ryman Hospitality Properties, Inc.

0.95%

FormFactor, Inc.

0.93%

Protagonist Therapeutics, Inc.

0.93%

ESCO Technologies, Inc.

0.92%

Alkermes Plc

0.92%

StoneX Group, Inc.

0.91%

Argan, Inc.

0.90%

Etsy, Inc.

0.88%

Federal Signal Corp.

0.86%

Zurn Elkay Water Solutions Corp.

0.85%

Armstrong World Industries, Inc.

0.84%

JBT Marel Corp.

0.81%

IWO

Moog, Inc.

0.76%

BrightSpring Health Services, Inc.

0.76%

Glaukos Corp.

0.62%

Krystal Biotech, Inc.

0.61%

Brinker International, Inc.

0.58%

Crinetics Pharmaceuticals, Inc.

0.55%

HealthEquity, Inc.

0.55%

JFrog Ltd.

0.54%

Protagonist Therapeutics, Inc.

0.54%

StoneX Group, Inc.

0.54%

Ryman Hospitality Properties, Inc.

0.53%

FirstCash Holdings, Inc.

0.53%

ESCO Technologies, Inc.

0.53%

Argan, Inc.

0.51%

InterDigital, Inc.

0.50%

Frequently asked questions about VIOG and IWO

How have the VIOG and IWO ETFs performed in 2026?

As of September 18, 2026, VIOG is up 16.18% year-to-date (YTD), while IWO has returned 12.24%. That puts VIOG better performer ahead so far this year.

Which ETF is attracting more investor money: VIOG or IWO?

Year-to-date, the VIOG ETF saw +$105M in flows, compared to -$533M for IWO.

Which ETF is more volatile: VIOG or IWO?

Over the past year, VIOG had a volatility of 17.21%, while IWO experienced 22.24%.

Which ETF is bigger: VIOG or IWO?

As of September 18, 2026, VIOG holds $1.06 B in assets under management (AUM), while IWO manages $14.20 B.

What sectors do the VIOG and IWO ETFs invest in?

VIOG leans toward sectors like Finance, Industrials and Healthcare. Meanwhile, IWO focuses on Healthcare, Technology and Industrials.

What are the top holdings of the VIOG ETF and IWO ETF?

VIOG top holdings include Corcept Therapeutics, Inc., ViaSat, Inc. and Brinker International, Inc.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..

VIOGvsIWOETF Comparison

Vanguard S&P Small-Cap 600 Growth ETF

iShares Russell 2000 Growth ETF

VIOG vs IWO 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 VIOG and IWO ETFs performed in 2026?

As of September 18, 2026, VIOG is up 16.18% year-to-date (YTD), while IWO has returned 12.24%. That puts VIOG better performer ahead so far this year.

Which ETF is attracting more investor money: VIOG or IWO?

Year-to-date, the VIOG ETF saw +$105M in flows, compared to -$533M for IWO.

Which ETF is more volatile: VIOG or IWO?

Over the past year, VIOG had a volatility of 17.21%, while IWO experienced 22.24%.

Which ETF is bigger: VIOG or IWO?

As of September 18, 2026, VIOG holds $1.06 B in assets under management (AUM), while IWO manages $14.20 B.

What sectors do the VIOG and IWO ETFs invest in?

VIOG leans toward sectors like Finance, Industrials and Healthcare. Meanwhile, IWO focuses on Healthcare, Technology and Industrials.

What are the top holdings of the VIOG ETF and IWO ETF?

VIOG top holdings include Corcept Therapeutics, Inc., ViaSat, Inc. and Brinker International, Inc.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..

Which ETF is more diversified: VIOG or IWO?

VIOG holds 348 securities with 14.17% of its assets in the top 15. IWO has 1102 securities and a top 15 weight of 8.65%.

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