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IWOvsJSMLETF Comparison

ETF 1

IWO

iShares Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

+0.55%

Full IWO fund page

VS

ETF 2

JSML

Janus Henderson Small Cap Growth Alpha ETF

This fund is part of

US Small Cap Growth

+0.55%

Full JSML fund page

iShares Russell 2000 Growth ETF (IWO) and Janus Henderson Small Cap Growth Alpha ETF (JSML) belong to the same industry segment: US Small Cap Growth. IWO's top 3 sector exposures are Information Technology, Industrials and Health Care. In contrast, JSML's top sector exposures are Industrials, Information Technology and Health Care. IWO is less expensive with a Total Expense Ratio (TER) of 0.24%, versus 0.3% for JSML. IWO is up 17.69% year-to-date (YTD) with -$714M in YTD flows. JSML performs better with 21.01% YTD performance, and +$34M in YTD flows. Run a side-by-side ETF comparison of IWO and JSML 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 JSML 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 06/12/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IWO JSML	+3.23%+4.97%	+20.22%+26.76%	+17.69%+21.01%	+36.25%+34.45%	+61.86%+63.72%	+27.73%+35.57%
Flows	IWO JSML	-$85M+$4M	-$82M+$6M	-$714M+$34M	-$600M+$91M	-$877M+$110M	-$291M+$123M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IWO JSML	+25.75%+26.77%	+22.24%+22.01%	+22.73%+21.96%	+24.68%+24.30%
Max drawdown	IWO JSML	-6.26%-6.44%	-14.82%-14.79%	-28.47%-25.88%	-40.45%-37.88%
Max drawdown duration	IWO JSML	13d11d	84d84d	280d287d	1409d1160d

Trading data

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	IWO	JSML
Last sale 6/12/2026 at 1:30 PM	$380.39	$88.95
Previous close 06/11/2026	$377.91	$88.66
Consolidated volume 06/11/2026
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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JSML

is actively managed and doesn’t replicate an index

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

Main metrics

Last update 6/12/2026 at 1:30 PM

Live

Closed

	IWO	JSML
Last price	$380.39	$88.95
1D performance	+0.66%	+0.32%
AuM	$14.75 B	$349.49 M
E/R	0.24%	0.3%

Characteristics

	IWO	JSML
Management strategy	Passive	Active
Provider	iShares	Janus Henderson Investors
Benchmark	Russell 2000 Growth Index	-
N° of holdings	890	103
Asset class	Equities	-
Trailing 12m distribution yield	Join	Join
Inception date	July 24, 2000	February 23, 2016
ESG	No	No

More IWO data on Trackinsight

More JSML data on Trackinsight

Exposure

Countries

IWO

USA

92.8%

Other

7.2%

JSML

USA

83.1%

Other

16.9%

Sectors

IWO

Information Techn.

21.84%

Industrials

21.02%

Health Care

19.04%

Consumer Discreti.

7.83%

Other

30.27%

JSML

Industrials

23.88%

Information Techn.

17.81%

Health Care

16.94%

Financials

9.91%

Other

31.45%

Diversification

IWO

Total weight of top 15 holdings out of 15

15.88%

JSML

Total weight of top 15 holdings out of 15

27.43%

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%

JSML

BLOOM ENERGY CORP

3.27%

CREDO TECHNOLOGY GROUP HOLDING

2.13%

PIPER SANDLER COMPANIES

2.06%

STERLING INFRASTRUCTURE INC

1.90%

RYMAN HOSPITALITY PROPERTIES

1.88%

BRIGHTSPHERE INVESTMENT GROUP

1.87%

FABRINET

1.83%

SRVSFRST BNCSH/D

1.64%

GRIFFON

1.62%

POWELL INDUSTRIES

1.62%

VICOR

1.55%

INTERDIGITAL

1.53%

ENERSYS

1.53%

BELDEN

1.51%

CTS

1.48%

Frequently asked questions about IWO and JSML

How have the IWO and JSML ETFs performed in 2026?

As of June 12, 2026, IWO is up 17.69% year-to-date (YTD), while JSML has returned 21.01%. That puts JSML better performer ahead so far this year.

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

Year-to-date, the IWO ETF saw -$714M in flows, compared to +$34M for JSML.

Which ETF is more volatile: IWO or JSML?

Over the past year, IWO had a volatility of 22.24%, while JSML experienced 22.01%.

Which ETF is bigger: IWO or JSML?

As of June 12, 2026, IWO holds $14.75 B in assets under management (AUM), while JSML manages $349.49 M.

What sectors do the IWO and JSML ETFs invest in?

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

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

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

IWOvsJSMLETF Comparison

iShares Russell 2000 Growth ETF

Janus Henderson Small Cap Growth Alpha ETF

IWO vs JSML 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 JSML ETFs performed in 2026?

As of June 12, 2026, IWO is up 17.69% year-to-date (YTD), while JSML has returned 21.01%. That puts JSML better performer ahead so far this year.

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

Year-to-date, the IWO ETF saw -$714M in flows, compared to +$34M for JSML.

Which ETF is more volatile: IWO or JSML?

Over the past year, IWO had a volatility of 22.24%, while JSML experienced 22.01%.

Which ETF is bigger: IWO or JSML?

As of June 12, 2026, IWO holds $14.75 B in assets under management (AUM), while JSML manages $349.49 M.

What sectors do the IWO and JSML ETFs invest in?

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

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

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

Which ETF is more diversified: IWO or JSML?

IWO holds 1090 securities with 15.88% of its assets in the top 15. JSML has 105 securities and a top 15 weight of 27.43%.

Active Trader Report: Use of Leveraged & Inverse ETFs Way Up