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RZGvsIWOETF Comparison

ETF 1

RZG

Invesco S&P SmallCap 600® Pure Growth ETF

This fund is part of

US Small Cap Growth

+0.66%

Full RZG fund page

VS

ETF 2

IWO

iShares Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

+0.66%

Full IWO fund page

Invesco S&P SmallCap 600® Pure Growth ETF (RZG) and iShares Russell 2000 Growth ETF (IWO) belong to the same industry segment: US Small Cap Growth. RZG's top 3 sector exposures are Finance, Healthcare and Industrials. In contrast, IWO's top sector exposures are Healthcare, Technology and Industrials. RZG is more expensive with a Total Expense Ratio (TER) of 0.35%, versus 0.24% for IWO. RZG is up 20.87% year-to-date (YTD) with +$2M in YTD flows. IWO performs worse with 13.91% YTD performance, and -$570M in YTD flows. Run a side-by-side ETF comparison of RZG 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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RZG vs IWO performance and flow charts

Performance

Cumulative Flows

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Data Services

Historic performance and flows

Data as of 09/11/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	RZG IWO	-5.86%-5.53%	-2.41%-2.69%	+20.87%+13.91%	+20.04%+16.94%	+61.39%+59.50%	+26.49%+26.01%
Flows	RZG IWO	-$4M+$308M	+$5M+$183M	+$2M-$570M	+$3M-$383M	-$11M-$720M	-$26M-$337M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	RZG IWO	+17.20%+18.92%	+18.80%+22.37%	+20.59%+22.97%	+22.85%+24.72%
Max drawdown	RZG IWO	-10.27%-7.65%	-10.27%-14.82%	-25.62%-28.47%	-38.45%-40.45%
Max drawdown duration	RZG IWO	73d44d	73d84d	296d280d	1521d1409d

Trading data

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	RZG	IWO
Last sale 9/11/2026 at 1:30 PM	$65.49	$367.63
Previous close 09/10/2026	$65.17	$365.67
Consolidated volume 09/10/2026
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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	RZG	IWO
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 9/11/2026 at 1:30 PM

Live

Closed

	RZG	IWO
Last price	$65.49	$367.63
1D performance	+0.49%	+0.54%
AuM	$125.74 M	$14.39 B
E/R	0.35%	0.24%

Characteristics

	RZG	IWO
Management strategy	Passive	Passive
Provider	Invesco	iShares
Benchmark	S&P SmallCap 600 Pure Growth Index	Russell 2000 Growth Index
N° of holdings	126	1095
Asset class	Equities	Equities
Trailing 12m distribution yield	Join	Join
Inception date	March 1, 2006	July 24, 2000
ESG	No	No

More RZG data on Trackinsight

More IWO data on Trackinsight

Exposure

Countries

RZG

USA

96.91%

Other

3.09%

IWO

USA

96.07%

Other

3.93%

Sectors

RZG

Finance

23.11%

Healthcare

22.81%

Industrials

15.68%

Technology

10.39%

Consumer Non-Cycl.

8.9%

Other

19.11%

IWO

Healthcare

29.4%

Technology

17.79%

Industrials

13.73%

Finance

13.29%

Other

25.79%

Diversification

RZG

Total weight of top 15 holdings out of 15

23.4%

IWO

Total weight of top 15 holdings out of 15

8.65%

Top 15 holdings

Data as of July 31, 2026

RZG

ACM Research, Inc.

2.00%

Dave, Inc.

1.93%

Protagonist Therapeutics, Inc.

1.76%

Liquidia Corp.

1.68%

Clear Secure, Inc.

1.65%

Acadian Asset Management, Inc.

1.60%

StoneX Group, Inc.

1.55%

Enova International, Inc.

1.53%

The Chefs' Warehouse, Inc.

1.53%

Progyny, Inc.

1.49%

Powell Industries, Inc.

1.36%

Uniti Group, Inc.

1.36%

PTC Therapeutics, Inc.

1.32%

Adamas Trust, Inc.

1.32%

Life360, Inc.

1.32%

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 RZG and IWO

How have the RZG and IWO ETFs performed in 2026?

As of September 11, 2026, RZG is up 20.87% year-to-date (YTD), while IWO has returned 13.91%. That puts RZG better performer ahead so far this year.

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

Year-to-date, the RZG ETF saw +$2M in flows, compared to -$570M for IWO.

Which ETF is more volatile: RZG or IWO?

Over the past year, RZG had a volatility of 18.8%, while IWO experienced 22.37%.

Which ETF is bigger: RZG or IWO?

As of September 11, 2026, RZG holds $125.74 M in assets under management (AUM), while IWO manages $14.39 B.

What sectors do the RZG and IWO ETFs invest in?

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

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

RZG top holdings include ACM Research, Inc., Dave, Inc. and Protagonist Therapeutics, Inc.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..

RZGvsIWOETF Comparison

Invesco S&P SmallCap 600® Pure Growth ETF

iShares Russell 2000 Growth ETF

RZG 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 RZG and IWO ETFs performed in 2026?

As of September 11, 2026, RZG is up 20.87% year-to-date (YTD), while IWO has returned 13.91%. That puts RZG better performer ahead so far this year.

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

Year-to-date, the RZG ETF saw +$2M in flows, compared to -$570M for IWO.

Which ETF is more volatile: RZG or IWO?

Over the past year, RZG had a volatility of 18.8%, while IWO experienced 22.37%.

Which ETF is bigger: RZG or IWO?

As of September 11, 2026, RZG holds $125.74 M in assets under management (AUM), while IWO manages $14.39 B.

What sectors do the RZG and IWO ETFs invest in?

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

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

RZG top holdings include ACM Research, Inc., Dave, Inc. and Protagonist Therapeutics, Inc.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..

Which ETF is more diversified: RZG or IWO?

RZG holds 126 securities with 23.4% of its assets in the top 15. IWO has 1102 securities and a top 15 weight of 8.65%.

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