AESBvsIWCETF Comparison
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Harbor AlphaEdge Small Cap Core ETF (AESB) belongs to the Uncategorized Equities segment. iShares Micro-Cap ETF (IWC) is part of the US Small Cap segment. Both ETFs have the same top 3 sector exposures: Finance, Healthcare and Technology. AESB is less expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.6% for IWC. Run a side-by-side ETF comparison of AESB and IWC 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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AESB vs IWC performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | AESB IWC | +1.13%-2.70% | n/a-4.16% | n/a+15.58% | n/a+16.33% | n/a+103.56% | n/a+30.48% |
| Flows | AESB IWC | --$99M | --$136M | --$11M | -+$38M | --$79M | --$189M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | AESB IWC | n/a+17.63% | n/a+22.96% | n/a+24.47% | n/a+24.45% |
| Max drawdown | AESB IWC | n/a-13.34% | n/a-13.34% | n/a-29.17% | n/a-40.55% |
| Max drawdown duration | AESB IWC | n/a73d | n/a73d | n/a233d | n/a1409d |
Trading data
AESB | IWC | |
Last sale 10/29/2026 at 3:33 PM | $183.61 | |
| Previous close 10/28/2026 | $181.43 | |
| 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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AESB
is actively managed and doesn’t replicate an indexAESB | IWC | |
|---|---|---|
| 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 3:33 PM
Live
Closed
AESB | IWC | |
|---|---|---|
| Last price | – | $183.61 |
| 1D performance | – | +1.20% |
| AuM | $1.97 M | $1.25 B |
| E/R | 0.38% | 0.6% |
Characteristics
AESB | IWC | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | Harbor Capital | iShares |
| Benchmark | - | Russell Microcap Index |
| N° of holdings | 163 | 1336 |
| Asset class | - | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | August 27, 2026 | August 12, 2005 |
| ESG | No | No |
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Exposure
Countries
AESB
USA
85.54%
Other
14.46%
IWC
USA
97.67%
Other
2.33%
Sectors
AESB
Finance
29.09%
Healthcare
16.45%
Technology
14.33%
Industrials
9.4%
Other
30.73%
IWC
Finance
28.98%
Healthcare
27.18%
Technology
10.72%
Industrials
8.71%
Other
24.41%
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Diversification
AESB
Total weight of top 15 holdings out of 15
29.38%
IWC
Total weight of top 15 holdings out of 15
7.17%
Top 15 holdings
Data as of August 31, 2026
AESB
Bread Financial Holdings, Inc.
3.19%
First BanCorp (Puerto Rico)
3.10%
Apple Hospitality REIT, Inc.
3.00%
Cathay General Bancorp
2.48%
LiveRamp Holdings, Inc.
2.48%
Slide Insurance Holdings, Inc.
1.99%
Ennis, Inc.
1.90%
OFG Bancorp
1.63%
Victory Capital Holdings, Inc.
1.61%
Harmony Biosciences Holdings, Inc.
1.51%
Cheesecake Factory, Inc.
1.49%
Carter Bankshares, Inc.
1.32%
Korn Ferry
1.25%
Enova International, Inc.
1.22%
Protagonist Therapeutics, Inc.
1.22%
IWC
CareDx, Inc.
0.60%
SELLAS Life Sciences Group, Inc.
0.58%
Nurix Therapeutics, Inc.
0.57%
Penguin Solutions, Inc.
0.57%
Interface, Inc.
0.51%
Ouster, Inc.
0.50%
BlackRock Cash Funds - Treasury
0.50%
Viridian Therapeutics, Inc.
0.49%
MBX Biosciences, Inc.
0.44%
UroGen Pharma Ltd.
0.43%
Innodata, Inc.
0.42%
Nuvation Bio, Inc.
0.39%
QCR Holdings, Inc.
0.39%
Ellington Financial, Inc.
0.39%
Butterfly Network, Inc.
0.39%
Frequently asked questions about AESB and IWC
Which ETF is bigger: AESB or IWC?
As of October 28, 2026, AESB holds $1.97 M in assets under management (AUM), while IWC manages $1.25 B.
What sectors do the AESB and IWC ETFs invest in?
AESB leans toward sectors like Finance, Healthcare and Technology. Meanwhile, IWC focuses on Finance, Healthcare and Technology.
What are the top holdings of the AESB ETF and IWC ETF?
AESB top holdings include Bread Financial Holdings, Inc., First BanCorp (Puerto Rico) and Apple Hospitality REIT, Inc.. IWC holds in its top three: CareDx, Inc., SELLAS Life Sciences Group, Inc. and Nurix Therapeutics, Inc..
Which ETF is more diversified: AESB or IWC?
AESB holds 163 securities with 29.38% of its assets in the top 15. IWC has 1346 securities and a top 15 weight of 7.17%.
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Latest news about AESB & IWC
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April 22, 2026
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November 4, 2022
IWC
An ETF for penny stocks? 3 micro-cap ETFs available to investors
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