IWOvsAESGETF Comparison
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iShares Russell 2000 Growth ETF (IWO) belongs to the US Small Cap Growth segment. Harbor AlphaEdge Small Cap Growth ETF (AESG) is part of the Uncategorized Equities segment. IWO's top 3 sector exposures are Healthcare, Technology and Industrials. In contrast, AESG's top sector exposures are Healthcare, Technology and Finance. IWO is less expensive with a Total Expense Ratio (TER) of 0.24%, versus 0.4% for AESG. Run a side-by-side ETF comparison of IWO and AESG 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 AESG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWO AESG | -0.50%-0.41% | -4.09%n/a | +10.51%n/a | +7.83%n/a | +77.24%n/a | +20.01%n/a |
| Flows | IWO AESG | -$58M- | +$391M- | -$393M- | -$173M- | -$473M- | -$72M- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWO AESG | +18.65%n/a | +21.95%n/a | +22.93%n/a | +24.66%n/a |
| Max drawdown | IWO AESG | -14.22%n/a | -14.82%n/a | -28.47%n/a | -40.45%n/a |
| Max drawdown duration | IWO AESG | 73dn/a | 84dn/a | 280dn/a | 1409dn/a |
Trading data
IWO | AESG | |
Last sale 10/29/2026 at 1:30 PM | $359.77 | |
| Previous close 10/28/2026 | $356.22 | |
| Consolidated volume 10/28/2026 | ||
| 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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AESG
is actively managed and doesn’t replicate an indexIWO | AESG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/29/2026 at 1:30 PM
Live
Closed
IWO | AESG | |
|---|---|---|
| Last price | $359.77 | – |
| 1D performance | +1.00% | – |
| AuM | $14.13 B | $1.95 M |
| E/R | 0.24% | 0.4% |
Characteristics
IWO | AESG | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | Harbor Capital |
| Benchmark | Russell 2000 Growth Index | - |
| N° of holdings | 1092 | 183 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | July 24, 2000 | August 27, 2026 |
| ESG | No | No |
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Exposure
Countries
IWO
USA
96.25%
Other
3.75%
AESG
USA
90.25%
Other
9.75%
Sectors
IWO
Healthcare
29.75%
Technology
17.87%
Industrials
13.23%
Finance
13.15%
Other
26%
AESG
Healthcare
24.12%
Technology
20.71%
Finance
18.57%
Industrials
10.35%
Other
26.24%
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Diversification
IWO
Total weight of top 15 holdings out of 15
8.77%
AESG
Total weight of top 15 holdings out of 15
26.26%
Top 15 holdings
Data as of August 31, 2026
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%
AESG
Bread Financial Holdings, Inc.
2.67%
Apple Hospitality REIT, Inc.
2.57%
LiveRamp Holdings, Inc.
2.56%
First BanCorp (Puerto Rico)
2.52%
Slide Insurance Holdings, Inc.
1.70%
Protagonist Therapeutics, Inc.
1.70%
Harmony Biosciences Holdings, Inc.
1.63%
Cheesecake Factory, Inc.
1.56%
Victory Capital Holdings, Inc.
1.49%
Ennis, Inc.
1.40%
Enova International, Inc.
1.38%
Twist Bioscience Corp.
1.37%
CareDx, Inc.
1.36%
Krystal Biotech, Inc.
1.18%
Oceaneering International, Inc.
1.17%
Frequently asked questions about IWO and AESG
Which ETF is bigger: IWO or AESG?
As of October 28, 2026, IWO holds $14.13 B in assets under management (AUM), while AESG manages $1.95 M.
What sectors do the IWO and AESG ETFs invest in?
IWO leans toward sectors like Healthcare, Technology and Industrials. Meanwhile, AESG focuses on Healthcare, Technology and Finance.
What are the top holdings of the IWO ETF and AESG ETF?
IWO top holdings include JFrog Ltd., Moog, Inc. and Glaukos Corp.. AESG holds in its top three: Bread Financial Holdings, Inc., Apple Hospitality REIT, Inc. and LiveRamp Holdings, Inc..
Which ETF is more diversified: IWO or AESG?
IWO holds 1100 securities with 8.77% of its assets in the top 15. AESG has 183 securities and a top 15 weight of 26.26%.
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