JSMLvsIWOETF Comparison
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Janus Henderson Small Cap Growth Alpha ETF (JSML) and iShares Russell 2000 Growth ETF (IWO) belong to the same industry segment: US Small Cap Growth. JSML's top 3 sector exposures are Healthcare, Technology and Finance. In contrast, IWO's top sector exposures are Healthcare, Technology and Industrials. JSML is more expensive with a Total Expense Ratio (TER) of 0.3%, versus 0.24% for IWO. JSML is up 18.12% year-to-date (YTD) with +$55M in YTD flows. IWO performs worse with 13.91% YTD performance, and -$570M in YTD flows. Run a side-by-side ETF comparison of JSML 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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JSML vs IWO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | JSML IWO | -4.46%-5.53% | -1.93%-2.69% | +18.12%+13.91% | +15.64%+16.94% | +69.53%+59.50% | +32.14%+26.01% |
| Flows | JSML IWO | +$105K+$308M | +$21M+$183M | +$55M-$570M | +$92M-$383M | +$112M-$720M | +$143M-$337M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | JSML IWO | +18.24%+18.92% | +22.21%+22.37% | +22.06%+22.97% | +24.34%+24.72% |
| Max drawdown | JSML IWO | -8.05%-7.65% | -14.79%-14.82% | -25.88%-28.47% | -37.27%-40.45% |
| Max drawdown duration | JSML IWO | 73d44d | 84d84d | 287d280d | 1093d1409d |
Trading data
JSML | IWO | |
Last sale 9/11/2026 at 1:30 PM | $86.76 | $367.63 |
| Previous close 09/10/2026 | $86.37 | $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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JSML
is actively managed and doesn’t replicate an indexJSML | IWO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/11/2026 at 1:30 PM
Live
Closed
JSML | IWO | |
|---|---|---|
| Last price | $86.76 | $367.63 |
| 1D performance | +0.45% | +0.54% |
| AuM | $360.53 M | $14.39 B |
| E/R | 0.3% | 0.24% |
Characteristics
JSML | IWO | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Janus Henderson Investors | iShares |
| Benchmark | - | Russell 2000 Growth Index |
| N° of holdings | 119 | 1095 |
| Asset class | - | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | February 23, 2016 | July 24, 2000 |
| ESG | No | No |
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Exposure
Countries
JSML
USA
97.14%
Other
2.86%
IWO
USA
96.07%
Other
3.93%
Sectors
JSML
Healthcare
26.88%
Technology
20.74%
Finance
15.52%
Industrials
8.64%
Consumer Services
7.38%
Other
20.83%
IWO
Healthcare
29.4%
Technology
17.79%
Industrials
13.73%
Finance
13.29%
Other
25.79%
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Diversification
JSML
Total weight of top 15 holdings out of 15
24.24%
IWO
Total weight of top 15 holdings out of 15
8.65%
Top 15 holdings
Data as of July 31, 2026
JSML
TriNet Group, Inc.
2.20%
Ryman Hospitality Properties, Inc.
2.14%
Cactus, Inc.
2.11%
EnerSys
1.74%
Victory Capital Holdings, Inc.
1.64%
Tenable Holdings, Inc.
1.54%
StepStone Group, Inc.
1.54%
CTS Corp.
1.49%
Brinker International, Inc.
1.47%
Commvault Systems, Inc.
1.46%
Kontoor Brands, Inc.
1.45%
MeiraGTx Holdings Plc
1.42%
Enova International, Inc.
1.36%
MYR Group, Inc.
1.36%
BrightSpring Health Services, Inc.
1.34%
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 JSML and IWO
How have the JSML and IWO ETFs performed in 2026?
As of September 11, 2026, JSML is up 18.12% year-to-date (YTD), while IWO has returned 13.91%. That puts JSML better performer ahead so far this year.
Which ETF is attracting more investor money: JSML or IWO?
Year-to-date, the JSML ETF saw +$55M in flows, compared to -$570M for IWO.
Which ETF is more volatile: JSML or IWO?
Over the past year, JSML had a volatility of 22.21%, while IWO experienced 22.37%.
Which ETF is bigger: JSML or IWO?
As of September 11, 2026, JSML holds $360.53 M in assets under management (AUM), while IWO manages $14.39 B.
What sectors do the JSML and IWO ETFs invest in?
JSML leans toward sectors like Healthcare, Technology and Finance. Meanwhile, IWO focuses on Healthcare, Technology and Industrials.
What are the top holdings of the JSML ETF and IWO ETF?
JSML top holdings include TriNet Group, Inc., Ryman Hospitality Properties, Inc. and Cactus, Inc.. IWO holds in its top three: Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp..
Which ETF is more diversified: JSML or IWO?
JSML holds 119 securities with 24.24% of its assets in the top 15. IWO has 1102 securities and a top 15 weight of 8.65%.
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