SLYGvsIWOETF Comparison
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State Street SPDR S&P 600 Small Cap Growth ETF (SLYG) and iShares Russell 2000 Growth ETF (IWO) belong to the same industry segment: US Small Cap Growth. SLYG's top 3 sector exposures are Finance, Industrials and Healthcare. In contrast, IWO's top sector exposures are Healthcare, Technology and Industrials. SLYG is less expensive with a Total Expense Ratio (TER) of 0.15%, versus 0.24% for IWO. SLYG is up 19.05% year-to-date (YTD) with +$482M in YTD flows. IWO performs worse with 11.66% YTD performance, and -$393M in YTD flows. Run a side-by-side ETF comparison of SLYG 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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SLYG vs IWO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/29/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SLYG IWO | +3.57%+0.85% | -1.59%-0.96% | +19.05%+11.66% | +19.52%+9.49% | +66.28%+79.09% | +29.82%+21.02% |
| Flows | SLYG IWO | -$155M-$40M | -$138M+$391M | +$482M-$393M | +$493M-$123M | +$864M-$473M | +$1.42B-$26M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SLYG IWO | +13.61%+18.29% | +16.87%+21.97% | +19.89%+22.92% | +21.42%+24.66% |
| Max drawdown | SLYG IWO | -10.95%-14.22% | -10.95%-14.82% | -27.35%-28.47% | -29.18%-40.45% |
| Max drawdown duration | SLYG IWO | 86d74d | 86d84d | 414d280d | 980d1409d |
Trading data
SLYG | IWO | |
Last sale 10/30/2026 at 1:30 PM | $109.75 | $351.78 |
| Previous close 10/29/2026 | $111.51 | $359.77 |
| Consolidated volume 10/29/2026 | ||
| 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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SLYG | 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 10/30/2026 at 1:30 PM
Live
Closed
SLYG | IWO | |
|---|---|---|
| Last price | $109.75 | $351.78 |
| 1D performance | -1.58% | -2.22% |
| AuM | $4.77 B | $14.27 B |
| E/R | 0.15% | 0.24% |
Characteristics
SLYG | IWO | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | State Street Investment Management | iShares |
| Benchmark | S&P SmallCap 600 Growth Index | Russell 2000 Growth Index |
| N° of holdings | 346 | 1102 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 25, 2000 | July 24, 2000 |
| ESG | No | No |
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Exposure
Countries
SLYG
USA
96.92%
Other
3.08%
IWO
USA
96.23%
Other
3.77%
Sectors
SLYG
Finance
22.84%
Industrials
15.8%
Healthcare
15.26%
Technology
14.21%
Other
31.89%
IWO
Healthcare
29.21%
Technology
19.27%
Industrials
13.36%
Finance
12.72%
Other
25.44%
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Diversification
SLYG
Total weight of top 15 holdings out of 15
13.87%
IWO
Total weight of top 15 holdings out of 15
9.2%
Top 15 holdings
Data as of September 30, 2026
SLYG
FormFactor, Inc.
1.42%
ViaSat, Inc.
1.18%
Protagonist Therapeutics, Inc.
1.11%
Ryman Hospitality Properties, Inc.
0.99%
TG Therapeutics, Inc.
0.96%
StoneX Group, Inc.
0.85%
Madison Square Garden Sports Corp.
0.85%
ESCO Technologies, Inc.
0.84%
Zurn Elkay Water Solutions Corp.
0.83%
Armstrong World Industries, Inc.
0.83%
Federal Signal Corp.
0.82%
Alkermes Plc
0.82%
Glaukos Corp.
0.81%
Enpro, Inc.
0.79%
Ligand Pharmaceuticals, Inc.
0.76%
IWO
Twist Bioscience Corp.
0.85%
Moog, Inc.
0.73%
JFrog Ltd.
0.70%
10X Genomics, Inc.
0.70%
BrightSpring Health Services, Inc.
0.63%
Glaukos Corp.
0.63%
Krystal Biotech, Inc.
0.58%
Protagonist Therapeutics, Inc.
0.58%
FirstCash Holdings, Inc.
0.57%
InterDigital, Inc.
0.57%
Brinker International, Inc.
0.56%
TG Therapeutics, Inc.
0.54%
Ryman Hospitality Properties, Inc.
0.54%
MaxLinear, Inc.
0.53%
HealthEquity, Inc.
0.49%
Frequently asked questions about SLYG and IWO
How have the SLYG and IWO ETFs performed in 2026?
As of October 29, 2026, SLYG is up 19.05% year-to-date (YTD), while IWO has returned 11.66%. That puts SLYG better performer ahead so far this year.
Which ETF is attracting more investor money: SLYG or IWO?
Year-to-date, the SLYG ETF saw +$482M in flows, compared to -$393M for IWO.
Which ETF is more volatile: SLYG or IWO?
Over the past year, SLYG had a volatility of 16.87%, while IWO experienced 21.97%.
Which ETF is bigger: SLYG or IWO?
As of October 29, 2026, SLYG holds $4.77 B in assets under management (AUM), while IWO manages $14.27 B.
What sectors do the SLYG and IWO ETFs invest in?
SLYG leans toward sectors like Finance, Industrials and Healthcare. Meanwhile, IWO focuses on Healthcare, Technology and Industrials.
What are the top holdings of the SLYG ETF and IWO ETF?
SLYG top holdings include FormFactor, Inc., ViaSat, Inc. and Protagonist Therapeutics, Inc.. IWO holds in its top three: Twist Bioscience Corp., Moog, Inc. and JFrog Ltd..
Which ETF is more diversified: SLYG or IWO?
SLYG holds 346 securities with 13.87% of its assets in the top 15. IWO has 1114 securities and a top 15 weight of 9.2%.
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