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VTWGvsIWOETF Comparison

ETF 1

VTWG

Vanguard Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

-0.14%

Full VTWG fund page

VS

ETF 2

IWO

iShares Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

-0.14%

Full IWO fund page

The ETFs Vanguard Russell 2000 Growth ETF (VTWG) and iShares Russell 2000 Growth ETF (IWO) track the Russell 2000 Growth Total Return Index - USD and belong to the same industry segment: US Small Cap Growth. Both ETFs have the same top 3 sector exposures: Healthcare, Technology and Industrials. VTWG is less expensive with a Total Expense Ratio (TER) of 0.06%, versus 0.24% for IWO. VTWG is up 12.09% year-to-date (YTD) with +$156M in YTD flows. IWO performs worse with 11.95% YTD performance, and -$570M in YTD flows. Run a side-by-side ETF comparison of VTWG 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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VTWG vs IWO 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 09/16/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	VTWG IWO	-8.46%-8.46%	-5.15%-5.20%	+12.09%+11.95%	+15.62%+15.45%	+59.99%+59.41%	+24.21%+23.61%
Flows	VTWG IWO	-+$347M	+$57M+$164M	+$156M-$570M	+$196M-$383M	+$239M-$615M	+$437M-$337M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	VTWG IWO	+18.63%+18.62%	+22.32%+22.38%	+22.86%+22.98%	+24.78%+24.72%
Max drawdown	VTWG IWO	-8.64%-8.65%	-14.80%-14.82%	-28.47%-28.47%	-40.46%-40.45%
Max drawdown duration	VTWG IWO	31d31d	84d84d	280d280d	1409d1409d

Trading data

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	VTWG	IWO
Last sale 9/17/2026 at 1:30 PM	$266.14	$363.67
Previous close 09/16/2026	$263.99	$361.11
Consolidated volume 09/16/2026
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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	VTWG	IWO
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 9/17/2026 at 1:30 PM

Live

Closed

	VTWG	IWO
Last price	$266.14	$363.67
1D performance	+0.81%	+0.71%
AuM	$1.44 B	$14.13 B
E/R	0.06%	0.24%

Characteristics

	VTWG	IWO
Management strategy	Passive	Passive
Provider	Vanguard	iShares
Benchmark	Russell 2000 Growth Index	Russell 2000 Growth Index
N° of holdings	1113	1095
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	September 20, 2010	July 24, 2000
ESG	No	No

More VTWG data on Trackinsight

More IWO data on Trackinsight

Exposure

Countries

VTWG

USA

94.1%

Other

5.9%

IWO

USA

96.07%

Other

3.93%

Sectors

VTWG

Healthcare

28.15%

Technology

17.74%

Industrials

13.58%

Finance

13.2%

Other

27.33%

IWO

Healthcare

29.4%

Technology

17.79%

Industrials

13.73%

Finance

13.29%

Other

25.79%

Diversification

VTWG

Total weight of top 15 holdings out of 15

8.3%

IWO

Total weight of top 15 holdings out of 15

8.65%

Top 15 holdings

Data as of July 31, 2026

VTWG

Moog, Inc.

0.70%

BrightSpring Health Services, Inc.

0.61%

Glaukos Corp.

0.60%

Brinker International, Inc.

0.58%

Krystal Biotech, Inc.

0.56%

JFrog Ltd.

0.55%

Crinetics Pharmaceuticals, Inc.

0.54%

HealthEquity, Inc.

0.54%

FirstCash Holdings, Inc.

0.53%

Protagonist Therapeutics, Inc.

0.53%

Ryman Hospitality Properties, Inc.

0.53%

StoneX Group, Inc.

0.52%

ESCO Technologies, Inc.

0.52%

InterDigital, Inc.

0.50%

Argan, Inc.

0.49%

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 VTWG and IWO

How have the VTWG and IWO ETFs performed in 2026?

As of September 16, 2026, VTWG is up 12.09% year-to-date (YTD), while IWO has returned 11.95%. That puts VTWG better performer ahead so far this year.

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

Year-to-date, the VTWG ETF saw +$156M in flows, compared to -$570M for IWO.

Which ETF is more volatile: VTWG or IWO?

Over the past year, VTWG had a volatility of 22.32%, while IWO experienced 22.38%.

Which ETF is bigger: VTWG or IWO?

As of September 16, 2026, VTWG holds $1.44 B in assets under management (AUM), while IWO manages $14.13 B.

What sectors do the VTWG and IWO ETFs invest in?

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

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

VTWG top holdings include Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..

VTWGvsIWOETF Comparison

Vanguard Russell 2000 Growth ETF

iShares Russell 2000 Growth ETF

VTWG 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 VTWG and IWO ETFs performed in 2026?

As of September 16, 2026, VTWG is up 12.09% year-to-date (YTD), while IWO has returned 11.95%. That puts VTWG better performer ahead so far this year.

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

Year-to-date, the VTWG ETF saw +$156M in flows, compared to -$570M for IWO.

Which ETF is more volatile: VTWG or IWO?

Over the past year, VTWG had a volatility of 22.32%, while IWO experienced 22.38%.

Which ETF is bigger: VTWG or IWO?

As of September 16, 2026, VTWG holds $1.44 B in assets under management (AUM), while IWO manages $14.13 B.

What sectors do the VTWG and IWO ETFs invest in?

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

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

VTWG top holdings include Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..

Which ETF is more diversified: VTWG or IWO?

VTWG holds 1125 securities with 8.3% of its assets in the top 15. IWO has 1102 securities and a top 15 weight of 8.65%.

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