IWOvsSLYGETF Comparison
VS
ETF 2
SLYG
State Street SPDR S&P 600 Small Cap Growth ETF
This fund is part of
US Small Cap Growth
+0.66%
iShares Russell 2000 Growth ETF (IWO) and State Street SPDR S&P 600 Small Cap Growth ETF (SLYG) belong to the same industry segment: US Small Cap Growth. IWO's top 3 sector exposures are Healthcare, Technology and Industrials. In contrast, SLYG's top sector exposures are Finance, Industrials and Healthcare. IWO is more expensive with a Total Expense Ratio (TER) of 0.24%, versus 0.15% for SLYG. IWO is up 13.91% year-to-date (YTD) with -$570M in YTD flows. SLYG performs better with 18.39% YTD performance, and +$626M in YTD flows. Run a side-by-side ETF comparison of IWO and SLYG 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 SLYG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/11/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWO SLYG | -5.53%-5.56% | -2.69%-0.51% | +13.91%+18.39% | +16.94%+17.66% | +59.50%+51.38% | +26.01%+31.88% |
| Flows | IWO SLYG | +$308M+$17M | +$183M+$76M | -$570M+$626M | -$383M+$651M | -$720M+$1.04B | -$337M+$1.55B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWO SLYG | +18.92%+14.41% | +22.37%+17.36% | +22.97%+20.01% | +24.72%+21.50% |
| Max drawdown | IWO SLYG | -7.65%-7.44% | -14.82%-9.05% | -28.47%-27.35% | -40.45%-29.18% |
| Max drawdown duration | IWO SLYG | 44d38d | 84d41d | 280d414d | 1409d980d |
Trading data
IWO | SLYG | |
Last sale 9/11/2026 at 1:30 PM | $367.63 | $111.15 |
| Previous close 09/10/2026 | $365.67 | $110.56 |
| 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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IWO | SLYG | |
|---|---|---|
| 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
IWO | SLYG | |
|---|---|---|
| Last price | $367.63 | $111.15 |
| 1D performance | +0.54% | +0.53% |
| AuM | $14.39 B | $4.90 B |
| E/R | 0.24% | 0.15% |
Characteristics
IWO | SLYG | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | State Street Investment Management |
| Benchmark | Russell 2000 Growth Index | S&P SmallCap 600 Growth Index |
| N° of holdings | 1095 | 348 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | July 24, 2000 | September 25, 2000 |
| ESG | No | No |
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Exposure
Countries
IWO
USA
96.07%
Other
3.93%
SLYG
USA
97.03%
Other
2.97%
Sectors
IWO
Healthcare
29.4%
Technology
17.79%
Industrials
13.73%
Finance
13.29%
Other
25.79%
SLYG
Finance
23.33%
Industrials
16.52%
Healthcare
15.04%
Technology
12.83%
Other
32.28%
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Diversification
IWO
Total weight of top 15 holdings out of 15
8.65%
SLYG
Total weight of top 15 holdings out of 15
14.28%
Top 15 holdings
Data as of July 31, 2026
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%
SLYG
Corcept Therapeutics, Inc.
1.24%
ViaSat, Inc.
1.19%
Brinker International, Inc.
1.04%
Ryman Hospitality Properties, Inc.
0.96%
FormFactor, Inc.
0.94%
Protagonist Therapeutics, Inc.
0.94%
ESCO Technologies, Inc.
0.93%
Alkermes Plc
0.93%
StoneX Group, Inc.
0.92%
Argan, Inc.
0.91%
Etsy, Inc.
0.88%
Federal Signal Corp.
0.87%
Zurn Elkay Water Solutions Corp.
0.85%
Armstrong World Industries, Inc.
0.85%
JBT Marel Corp.
0.82%
Frequently asked questions about IWO and SLYG
How have the IWO and SLYG ETFs performed in 2026?
As of September 11, 2026, IWO is up 13.91% year-to-date (YTD), while SLYG has returned 18.39%. That puts SLYG better performer ahead so far this year.
Which ETF is attracting more investor money: IWO or SLYG?
Year-to-date, the IWO ETF saw -$570M in flows, compared to +$626M for SLYG.
Which ETF is more volatile: IWO or SLYG?
Over the past year, IWO had a volatility of 22.37%, while SLYG experienced 17.36%.
Which ETF is bigger: IWO or SLYG?
As of September 11, 2026, IWO holds $14.39 B in assets under management (AUM), while SLYG manages $4.90 B.
What sectors do the IWO and SLYG ETFs invest in?
IWO leans toward sectors like Healthcare, Technology and Industrials. Meanwhile, SLYG focuses on Finance, Industrials and Healthcare.
What are the top holdings of the IWO ETF and SLYG ETF?
IWO top holdings include Moog, Inc., BrightSpring Health Services, Inc. and Glaukos Corp.. SLYG holds in its top three: Corcept Therapeutics, Inc., ViaSat, Inc. and Brinker International, Inc..
Which ETF is more diversified: IWO or SLYG?
IWO holds 1102 securities with 8.65% of its assets in the top 15. SLYG has 348 securities and a top 15 weight of 14.28%.
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