VTWOvsIWMETF Comparison
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The ETFs Vanguard Russell 2000 ETF (VTWO) and iShares Russell 2000 ETF (IWM) track the Russell 2000 Total Return Index - USD and belong to the same industry segment: US Small Cap. Both ETFs have the same top 3 sector exposures: Finance, Healthcare and Technology. VTWO is less expensive with a Total Expense Ratio (TER) of 0.06%, versus 0.19% for IWM. VTWO is up 18.68% year-to-date (YTD) with +$839M in YTD flows. IWM performs better with 20.11% YTD performance, and -$7.28B in YTD flows. Run a side-by-side ETF comparison of VTWO and IWM 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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VTWO vs IWM performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/09/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | VTWO IWM | -3.06%-1.79% | +2.22%+3.94% | +18.68%+20.11% | +24.22%+24.98% | +64.19%+65.90% | +39.43%+40.13% |
| Flows | VTWO IWM | +$328M+$311M | +$279M-$908M | +$839M-$7.28B | +$1.67B-$2.74B | +$5.31B-$2.35B | +$6.81B-$5.33B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | VTWO IWM | +15.12%+14.88% | +18.88%+18.90% | +21.14%+21.24% | +22.46%+22.50% |
| Max drawdown | VTWO IWM | -4.75%-4.76% | -10.99%-11.03% | -27.51%-27.52% | -31.93%-31.96% |
| Max drawdown duration | VTWO IWM | 24d23d | 82d82d | 289d289d | 1093d1093d |
Trading data
VTWO | IWM | |
Last sale 9/10/2026 at 1:30 PM | $116.34 | $287.70 |
| Previous close 09/09/2026 | $117.51 | $290.64 |
| Consolidated volume 09/09/2026 | ||
| 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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VTWO | IWM | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/10/2026 at 1:30 PM
Live
Closed
VTWO | IWM | |
|---|---|---|
| Last price | $116.34 | $287.70 |
| 1D performance | -1.00% | -1.01% |
| AuM | $17.15 B | $79.99 B |
| E/R | 0.06% | 0.19% |
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Exposure
Countries
VTWO
USA
92.69%
Other
7.31%
IWM
USA
95.53%
Other
4.47%
Sectors
VTWO
Finance
26.17%
Healthcare
19.29%
Technology
11.7%
Industrials
10.34%
Other
32.49%
IWM
Finance
26.78%
Healthcare
20.22%
Technology
11.82%
Industrials
10.54%
Other
30.64%
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Diversification
VTWO
Total weight of top 15 holdings out of 15
4.51%
IWM
Total weight of top 15 holdings out of 15
4.93%
Top 15 holdings
Data as of July 31, 2026
VTWO
Moog, Inc.
0.35%
Hut 8 Corp.
0.35%
UMB Financial Corp.
0.34%
Cytokinetics, Inc.
0.32%
ViaSat, Inc.
0.31%
BrightSpring Health Services, Inc.
0.31%
Glaukos Corp.
0.30%
CareTrust REIT, Inc.
0.30%
Old National Bancorp
0.29%
Brinker International, Inc.
0.29%
Krystal Biotech, Inc.
0.28%
JFrog Ltd.
0.27%
Crinetics Pharmaceuticals, Inc.
0.27%
HealthEquity, Inc.
0.27%
Protagonist Therapeutics, Inc.
0.26%
IWM
BlackRock Cash Funds - Treasury
0.46%
Moog, Inc.
0.39%
BrightSpring Health Services, Inc.
0.38%
Hut 8 Corp.
0.36%
UMB Financial Corp.
0.35%
Cytokinetics, Inc.
0.34%
ViaSat, Inc.
0.32%
Glaukos Corp.
0.31%
Krystal Biotech, Inc.
0.31%
CareTrust REIT, Inc.
0.30%
Old National Bancorp
0.30%
Brinker International, Inc.
0.29%
Crinetics Pharmaceuticals, Inc.
0.28%
HealthEquity, Inc.
0.28%
JFrog Ltd.
0.27%
Frequently asked questions about VTWO and IWM
How have the VTWO and IWM ETFs performed in 2026?
As of September 9, 2026, VTWO is up 18.68% year-to-date (YTD), while IWM has returned 20.11%. That puts IWM better performer ahead so far this year.
Which ETF is attracting more investor money: VTWO or IWM?
Year-to-date, the VTWO ETF saw +$839M in flows, compared to -$7.28B for IWM.
Which ETF is more volatile: VTWO or IWM?
Over the past year, VTWO had a volatility of 18.88%, while IWM experienced 18.9%.
Which ETF is bigger: VTWO or IWM?
As of September 9, 2026, VTWO holds $17.15 B in assets under management (AUM), while IWM manages $79.99 B.
What sectors do the VTWO and IWM ETFs invest in?
VTWO leans toward sectors like Finance, Healthcare and Technology. Meanwhile, IWM focuses on Finance, Healthcare and Technology.
What are the top holdings of the VTWO ETF and IWM ETF?
VTWO top holdings include Moog, Inc., Hut 8 Corp. and UMB Financial Corp.. IWM holds in its top three: BlackRock Cash Funds - Treasury, Moog, Inc. and BrightSpring Health Services, Inc..
Which ETF is more diversified: VTWO or IWM?
VTWO holds 1986 securities with 4.51% of its assets in the top 15. IWM has 1957 securities and a top 15 weight of 4.93%.
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