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 18.91% year-to-date (YTD) with +$62M in YTD flows. IWO performs worse with 9.71% YTD performance, and -$464M 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 10/27/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | JSML IWO | +0.87%-1.22% | -0.83%-5.22% | +18.91%+9.71% | +14.21%+6.47% | +89.18%+76.68% | +38.40%+21.92% |
| Flows | JSML IWO | +$26M-$129M | +$9M+$282M | +$62M-$464M | +$77M-$261M | +$109M-$544M | +$152M-$173M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | JSML IWO | +17.36%+18.59% | +21.52%+21.95% | +21.99%+22.92% | +24.30%+24.68% |
| Max drawdown | JSML IWO | -9.13%-14.22% | -14.79%-14.82% | -25.88%-28.47% | -37.27%-40.45% |
| Max drawdown duration | JSML IWO | 72d72d | 84d84d | 287d280d | 1093d1409d |
Trading data
JSML | IWO | |
Last sale 10/28/2026 at 1:30 PM | $88.17 | $356.22 |
| Previous close 10/27/2026 | $87.34 | $353.71 |
| Consolidated volume 10/27/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 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 10/28/2026 at 1:30 PM
Live
Closed
JSML | IWO | |
|---|---|---|
| Last price | $88.17 | $356.22 |
| 1D performance | +0.95% | +0.71% |
| AuM | $369.25 M | $13.95 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 | 120 | 1092 |
| 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
97.27%
Other
2.73%
IWO
USA
96.25%
Other
3.75%
Sectors
JSML
Healthcare
27.96%
Technology
20.66%
Finance
15.45%
Industrials
7.89%
Consumer Services
7.22%
Other
20.82%
IWO
Healthcare
29.75%
Technology
17.87%
Industrials
13.23%
Finance
13.15%
Other
26%
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Diversification
JSML
Total weight of top 15 holdings out of 15
25.49%
IWO
Total weight of top 15 holdings out of 15
8.77%
Top 15 holdings
Data as of August 31, 2026
JSML
TriNet Group, Inc.
2.32%
Cactus, Inc.
2.26%
Ryman Hospitality Properties, Inc.
2.00%
Victory Capital Holdings, Inc.
1.93%
StepStone Group, Inc.
1.82%
Tenable Holdings, Inc.
1.78%
EnerSys
1.70%
Commvault Systems, Inc.
1.68%
MeiraGTx Holdings Plc
1.64%
Brinker International, Inc.
1.56%
Qualys, Inc.
1.55%
Griffon Corp.
1.34%
Haemonetics Corp.
1.33%
PagerDuty, Inc.
1.30%
CTS Corp.
1.30%
IWO
JFrog Ltd.
0.69%
Moog, Inc.
0.67%
Glaukos Corp.
0.65%
Brinker International, Inc.
0.63%
BrightSpring Health Services, Inc.
0.60%
Krystal Biotech, Inc.
0.59%
Protagonist Therapeutics, Inc.
0.57%
Twist Bioscience Corp.
0.57%
FirstCash Holdings, Inc.
0.56%
Crinetics Pharmaceuticals, Inc.
0.56%
Praxis Precision Medicines, Inc.
0.55%
InterDigital, Inc.
0.55%
Ryman Hospitality Properties, Inc.
0.54%
HealthEquity, Inc.
0.52%
TG Therapeutics, Inc.
0.50%
Frequently asked questions about JSML and IWO
How have the JSML and IWO ETFs performed in 2026?
As of October 27, 2026, JSML is up 18.91% year-to-date (YTD), while IWO has returned 9.71%. 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 +$62M in flows, compared to -$464M for IWO.
Which ETF is more volatile: JSML or IWO?
Over the past year, JSML had a volatility of 21.52%, while IWO experienced 21.95%.
Which ETF is bigger: JSML or IWO?
As of October 27, 2026, JSML holds $369.25 M in assets under management (AUM), while IWO manages $13.95 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., Cactus, Inc. and Ryman Hospitality Properties, Inc.. IWO holds in its top three: JFrog Ltd., Moog, Inc. and Glaukos Corp..
Which ETF is more diversified: JSML or IWO?
JSML holds 120 securities with 25.49% of its assets in the top 15. IWO has 1100 securities and a top 15 weight of 8.77%.
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