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IWOvsVTWGETF Comparison

ETF 1

IWO

iShares Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

+2.1%

Full IWO fund page

VS

ETF 2

VTWG

Vanguard Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

+2.1%

Full VTWG fund page

The ETFs iShares Russell 2000 Growth ETF (IWO) and Vanguard Russell 2000 Growth ETF (VTWG) 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: Information Technology, Industrials and Health Care. IWO is more expensive with a Total Expense Ratio (TER) of 0.24%, versus 0.06% for VTWG. IWO is up 20.69% year-to-date (YTD) with -$694M in YTD flows. VTWG performs better with 20.79% YTD performance, and +$112M in YTD flows. Run a side-by-side ETF comparison of IWO and VTWG 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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IWO vs VTWG 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 06/18/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IWO VTWG	+9.15%+9.16%	+23.56%+23.64%	+20.69%+20.79%	+41.43%+41.66%	+66.14%+66.83%	+34.68%+35.30%
Flows	IWO VTWG	-$84M+$42M	-$125M+$44M	-$694M+$112M	-$566M+$138M	-$701M+$202M	-$348M+$392M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IWO VTWG	+26.04%+26.04%	+22.30%+22.24%	+22.79%+22.66%	+24.71%+24.81%
Max drawdown	IWO VTWG	-6.26%-6.26%	-14.82%-14.80%	-28.47%-28.47%	-40.45%-40.46%
Max drawdown duration	IWO VTWG	13d13d	84d84d	280d280d	1409d1409d

Trading data

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	IWO	VTWG
Last sale 6/18/2026 at 1:30 PM	$389.04	$284.40
Previous close 06/18/2026	$380.02	$277.57
Consolidated volume 06/18/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of May 29, 2026

1-year trailing difference

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

Main metrics

Last update 6/18/2026 at 1:30 PM

Live

Closed

	IWO	VTWG
Last price	$389.04	$284.40
1D performance	+2.37%	+2.46%
AuM	$15.13 B	$1.51 B
E/R	0.24%	0.06%

Characteristics

	IWO	VTWG
Management strategy	Passive	Passive
Provider	iShares	Vanguard
Benchmark	Russell 2000 Growth Index	Russell 2000 Growth Index
N° of holdings	890	898
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	July 24, 2000	September 20, 2010
ESG	No	No

More IWO data on Trackinsight

More VTWG data on Trackinsight

Exposure

Countries

IWO

USA

92.8%

Other

7.2%

VTWG

USA

90.41%

Other

9.59%

Sectors

IWO

Information Techn.

21.84%

Industrials

21.02%

Health Care

19.04%

Consumer Discreti.

7.83%

Other

30.27%

VTWG

Information Techn.

21.28%

Industrials

20.6%

Health Care

18.65%

Consumer Discreti.

7.66%

Other

31.81%

Diversification

IWO

Total weight of top 15 holdings out of 15

15.88%

VTWG

Total weight of top 15 holdings out of 15

15.38%

Top 15 holdings

Data as of April 30, 2026

IWO

BLOOM ENERGY CORP

3.64%

CREDO TECHNOLOGY GROUP HOLDING

1.65%

FABRINET

1.45%

IONQ

0.92%

STERLING INFRASTRUCTURE INC

0.90%

ADVANCED ENERGY INDUSTRIES

0.85%

US65290E1010

0.82%

MODINE MNFC CO

0.78%

SITIME CORP

0.74%

RAMBUS

0.73%

DYCOM INDUSTRIES

0.71%

VIAVI SOLUTIONS INC

0.71%

KRATOS DEFENSE AND SECURITY SOLS

0.67%

BRIDGEBIO PHARMA

0.66%

GUARDANT HEALTH INC

0.64%

VTWG

BLOOM ENERGY CORP

3.57%

CREDO TECHNOLOGY GROUP HOLDING

1.62%

FABRINET

1.42%

STERLING INFRASTRUCTURE INC

0.89%

ADVANCED ENERGY INDUSTRIES

0.83%

US65290E1010

0.80%

MODINE MNFC CO

0.77%

SITIME CORP

0.73%

IONQ

0.73%

RAMBUS

0.72%

DYCOM INDUSTRIES

0.70%

VIAVI SOLUTIONS INC

0.70%

KRATOS DEFENSE AND SECURITY SOLS

0.66%

BRIDGEBIO PHARMA

0.65%

GUARDANT HEALTH INC

0.62%

Frequently asked questions about IWO and VTWG

How have the IWO and VTWG ETFs performed in 2026?

As of June 18, 2026, IWO is up 20.69% year-to-date (YTD), while VTWG has returned 20.79%. That puts VTWG better performer ahead so far this year.

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

Year-to-date, the IWO ETF saw -$694M in flows, compared to +$112M for VTWG.

Which ETF is more volatile: IWO or VTWG?

Over the past year, IWO had a volatility of 22.3%, while VTWG experienced 22.24%.

Which ETF is bigger: IWO or VTWG?

As of June 18, 2026, IWO holds $15.13 B in assets under management (AUM), while VTWG manages $1.51 B.

What sectors do the IWO and VTWG ETFs invest in?

IWO leans toward sectors like Information Technology, Industrials and Health Care. Meanwhile, VTWG focuses on Information Technology, Industrials and Health Care.

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

IWO top holdings include BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and FABRINET. VTWG holds in its top three: BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and FABRINET.

IWOvsVTWGETF Comparison

iShares Russell 2000 Growth ETF

Vanguard Russell 2000 Growth ETF

IWO vs VTWG 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 IWO and VTWG ETFs performed in 2026?

As of June 18, 2026, IWO is up 20.69% year-to-date (YTD), while VTWG has returned 20.79%. That puts VTWG better performer ahead so far this year.

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

Year-to-date, the IWO ETF saw -$694M in flows, compared to +$112M for VTWG.

Which ETF is more volatile: IWO or VTWG?

Over the past year, IWO had a volatility of 22.3%, while VTWG experienced 22.24%.

Which ETF is bigger: IWO or VTWG?

As of June 18, 2026, IWO holds $15.13 B in assets under management (AUM), while VTWG manages $1.51 B.

What sectors do the IWO and VTWG ETFs invest in?

IWO leans toward sectors like Information Technology, Industrials and Health Care. Meanwhile, VTWG focuses on Information Technology, Industrials and Health Care.

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

IWO top holdings include BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and FABRINET. VTWG holds in its top three: BLOOM ENERGY CORP, CREDO TECHNOLOGY GROUP HOLDING and FABRINET.

Which ETF is more diversified: IWO or VTWG?

IWO holds 1090 securities with 15.88% of its assets in the top 15. VTWG has 1122 securities and a top 15 weight of 15.38%.

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