BROUGHT TO YOU BY:

ETF Portfolio Builder

New

ETF Portfolio Builder

New

IWOvsJSMLETF Comparison

ETF 1

IWO

iShares Russell 2000 Growth ETF

This fund is part of

US Small Cap Growth

-0.22%

Full IWO fund page

VS

ETF 2

JSML

Janus Henderson Small Cap Growth Alpha ETF

This fund is part of

US Small Cap Growth

-0.22%

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 Health Care, Information Technology and Industrials. In contrast, JSML's top sector exposures are Industrials, Health Care and Information Technology. IWO is less expensive with a Total Expense Ratio (TER) of 0.24%, versus 0.3% for JSML. IWO is up 10.61% year-to-date (YTD) with -$809M in YTD flows. JSML performs better with 11.3% YTD performance, and +$30M 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.

Find out how industry players manage ETF portfolios. Discover our library of Model portfolios

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

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 04/27/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IWO JSML	+16.32%+16.09%	+3.32%+5.70%	+10.61%+11.30%	+41.72%+39.99%	+64.12%+71.18%	+17.90%+20.81%
Flows	IWO JSML	-$129M+$14K	-$530M-$99K	-$809M+$30M	-$1.22B+$79M	-$1.05B+$118M	-$576M+$127M

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IWO JSML	+25.63%+25.04%	+21.38%+20.63%	+22.42%+21.73%	+24.55%+24.05%
Max drawdown	IWO JSML	-12.94%-13.15%	-14.82%-14.79%	-28.47%-25.88%	-40.45%-37.88%
Max drawdown duration	IWO JSML	76d77d	84d84d	280d287d	1409d1160d

Trading data

Create an account to view trading data

Join for free

	IWO	JSML
Last sale 4/28/2026 at 7:21 PM	$351.01	$81.63
Previous close 04/27/2026	$357.83	$81.79
Consolidated volume 04/27/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of March 31, 2026

1-year trailing difference

Create an account to view replication metrics

Join for free

JSML

is actively managed and doesn’t replicate an index

Create an account to view replication quality

Join for free

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

Main metrics

Last update 4/28/2026 at 7:21 PM

Live

Closed

	IWO	JSML
Last price	$351.01	$81.63
1D performance	-1.91%	-0.20%
AuM	$13.78 B	$317.37 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	897	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

93.17%

Other

6.83%

JSML

USA

83.74%

Other

16.26%

Sectors

IWO

Health Care

21.43%

Information Techn.

20.12%

Industrials

19.42%

Consumer Discreti.

8.17%

Financials

7.05%

Other

23.81%

JSML

Industrials

21.91%

Health Care

18.69%

Information Techn.

16.48%

Financials

9.84%

Consumer Discreti.

7.73%

Other

25.35%

Diversification

IWO

Total weight of top 15 holdings out of 15

13.39%

JSML

Total weight of top 15 holdings out of 15

25.29%

Top 15 holdings

Data as of March 31, 2026

IWO

BLOOM ENERGY CORP

1.99%

FABRINET

1.26%

CREDO TECHNOLOGY GROUP HOLDING

1.02%

US65290E1010

0.94%

KRATOS DEFENSE AND SECURITY SOLS

0.86%

ADVANCED ENERGY INDUSTRIES

0.82%

STERLING INFRASTRUCTURE INC

0.81%

BRIDGEBIO PHARMA

0.79%

GUARDANT HEALTH INC

0.77%

MODINE MNFC CO

0.76%

ENSIGN GROUP

0.76%

IONQ

0.67%

DYCOM INDUSTRIES

0.66%

US78473E1038

0.65%

COEUR MINING INC

0.64%

JSML

PIPER SANDLER COMPANIES

2.07%

BLOOM ENERGY CORP

2.06%

RYMAN HOSPITALITY PROPERTIES

1.96%

STERLING INFRASTRUCTURE INC

1.83%

SRVSFRST BNCSH/D

1.77%

BRIGHTSPHERE INVESTMENT GROUP

1.74%

FABRINET

1.68%

BRINK'S

1.58%

BELDEN

1.56%

KADANT

1.54%

THE ST JOE COMPANY

1.53%

INTERDIGITAL

1.52%

CTS

1.51%

GRIFFON

1.48%

ENERSYS

1.47%

Frequently asked questions about IWO and JSML

How have the IWO and JSML ETFs performed in 2026?

As of April 27, 2026, IWO is up 10.61% year-to-date (YTD), while JSML has returned 11.3%. 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 -$809M in flows, compared to +$30M for JSML.

Which ETF is more volatile: IWO or JSML?

Over the past year, IWO had a volatility of 21.38%, while JSML experienced 20.63%.

Which ETF is bigger: IWO or JSML?

As of April 27, 2026, IWO holds $13.78 B in assets under management (AUM), while JSML manages $317.37 M.

What sectors do the IWO and JSML ETFs invest in?

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

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

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

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 April 27, 2026, IWO is up 10.61% year-to-date (YTD), while JSML has returned 11.3%. 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 -$809M in flows, compared to +$30M for JSML.

Which ETF is more volatile: IWO or JSML?

Over the past year, IWO had a volatility of 21.38%, while JSML experienced 20.63%.

Which ETF is bigger: IWO or JSML?

As of April 27, 2026, IWO holds $13.78 B in assets under management (AUM), while JSML manages $317.37 M.

What sectors do the IWO and JSML ETFs invest in?

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

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

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

Which ETF is more diversified: IWO or JSML?

IWO holds 1099 securities with 13.39% of its assets in the top 15. JSML has 105 securities and a top 15 weight of 25.29%.

Expert-Built ETF Portfolios, All in One Place