IWMvsAIMSETF Comparison
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iShares Russell 2000 ETF (IWM) and Acuitas Small Cap Active ETF (AIMS) belong to the same industry segment: US Small Cap. IWM's top 3 sector exposures are Finance, Healthcare and Technology. In contrast, AIMS's top sector exposures are Finance, Industrials and Technology. IWM is less expensive with a Total Expense Ratio (TER) of 0.19%, versus 0.75% for AIMS. Run a side-by-side ETF comparison of IWM and AIMS 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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IWM vs AIMS performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 07/24/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWM AIMS | -1.85%-1.44% | +5.39%+5.57% | +18.69%n/a | +31.54%n/a | +54.71%n/a | +40.68%n/a |
| Flows | IWM AIMS | -$2.60B+$3K | -$1.76B-$661K | -$7.68B- | -$5.18B- | -$3.63B- | -$4.98B- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWM AIMS | +18.47%+18.04% | +19.40%n/a | +21.23%n/a | +22.55%n/a |
| Max drawdown | IWM AIMS | -4.78%-5.12% | -11.03%n/a | -27.52%n/a | -31.96%n/a |
| Max drawdown duration | IWM AIMS | 16d24d | 82dn/a | 289dn/a | 1093dn/a |
Trading data
IWM | AIMS | |
Last sale 7/27/2026 at 2:30 PM | $291.96 | $28.07 |
| Previous close 07/24/2026 | $291.17 | $28.04 |
| Consolidated volume 07/24/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of June 30, 2026
1-year trailing difference
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AIMS
is actively managed and doesn’t replicate an indexIWM | AIMS | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 7/27/2026 at 2:30 PM
Live
Closed
IWM | AIMS | |
|---|---|---|
| Last price | $291.96 | $28.07 |
| 1D performance | +0.27% | +0.11% |
| AuM | $78.67 B | $86.79 M |
| E/R | 0.19% | 0.75% |
Characteristics
IWM | AIMS | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | iShares | Acuitas Investments |
| Benchmark | Russell 2000 Index | - |
| N° of holdings | 1961 | 275 |
| Asset class | Equities | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 22, 2000 | February 9, 2026 |
| ESG | No | No |
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Exposure
Countries
IWM
USA
95.01%
Other
4.99%
AIMS
USA
92.8%
Other
7.2%
Sectors
IWM
Finance
25.48%
Healthcare
20.01%
Technology
12.88%
Industrials
11.47%
Other
30.16%
AIMS
Finance
19.63%
Industrials
17.35%
Technology
15.78%
Healthcare
13.14%
Other
34.1%
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Diversification
IWM
Total weight of top 15 holdings out of 15
4.84%
AIMS
Total weight of top 15 holdings out of 15
17.04%
Top 15 holdings
Data as of June 30, 2026
IWM
Moog, Inc.
0.38%
Hut 8 Corp.
0.37%
ViaSat, Inc.
0.35%
BrightSpring Health Services, Inc.
0.35%
Cytokinetics, Inc.
0.35%
MaxLinear, Inc.
0.34%
Argan, Inc.
0.34%
UMB Financial Corp.
0.33%
JFrog Ltd.
0.31%
Riot Platforms, Inc.
0.30%
Krystal Biotech, Inc.
0.30%
ESCO Technologies, Inc.
0.29%
CareTrust REIT, Inc.
0.28%
Old National Bancorp
0.28%
FirstCash Holdings, Inc.
0.28%
AIMS
PDF Solutions, Inc.
2.08%
Ligand Pharmaceuticals, Inc.
1.80%
Covenant Logistics Group, Inc.
1.35%
Triumph Financial, Inc.
1.24%
Preformed Line Products Co.
1.12%
Metropolitan Bank Holding Corp.
1.04%
Kodiak Gas Services, Inc.
0.98%
UFP Technologies, Inc.
0.98%
StoneX Group, Inc.
0.96%
Digi International, Inc.
0.95%
TeraWulf, Inc.
0.94%
Coastal Financial Corp. (Washington)
0.94%
LeMaitre Vascular, Inc.
0.92%
Business First Bancshares, Inc.
0.87%
Ryman Hospitality Properties, Inc.
0.87%
Frequently asked questions about IWM and AIMS
Which ETF is bigger: IWM or AIMS?
As of July 24, 2026, IWM holds $78.67 B in assets under management (AUM), while AIMS manages $86.79 M.
What sectors do the IWM and AIMS ETFs invest in?
IWM leans toward sectors like Finance, Healthcare and Technology. Meanwhile, AIMS focuses on Finance, Industrials and Technology.
What are the top holdings of the IWM ETF and AIMS ETF?
IWM top holdings include Moog, Inc., Hut 8 Corp. and ViaSat, Inc.. AIMS holds in its top three: PDF Solutions, Inc., Ligand Pharmaceuticals, Inc. and Covenant Logistics Group, Inc..
Which ETF is more diversified: IWM or AIMS?
IWM holds 1992 securities with 4.84% of its assets in the top 15. AIMS has 275 securities and a top 15 weight of 17.04%.
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Latest news about IWM & AIMS
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IWM
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