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IWMvsVBETF Comparison

ETF 1
IWM

iShares Russell 2000 ETF

This fund is part of
US Small Cap
+0.29%
Full IWM fund page
VS
ETF 2
VB

Vanguard Small Cap ETF

This fund is part of
US Small Cap
+0.29%
Full VB fund page

iShares Russell 2000 ETF (IWM) and Vanguard Small Cap ETF (VB) belong to the same industry segment: US Small Cap. IWM's top 3 sector exposures are Industrials, Health Care and Financials. In contrast, VB's top sector exposures are Industrials, Information Technology and Financials. IWM is more expensive with a Total Expense Ratio (TER) of 0.19%, versus 0.03% for VB. IWM is up 13.69% year-to-date (YTD) with -$5.35B in YTD flows. VB performs worse with 10.84% YTD performance, and +$192M in YTD flows. Run a side-by-side ETF comparison of IWM and VB 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 VB performance and flow charts

Performance

024681012%Apr 1Apr 9Apr 16Apr 23Apr 30

Cumulative Flows

-4,000 M-3,000 M-2,000 M-1,000 M0 MApr 1Apr 9Apr 16Apr 23Apr 30

Get all the metrics on this page, and more, through a reliable ETF data feed

Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

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Data Services
Historic performance and flows
Data as of 05/01/2026
1M3MYTD1Y3Y5Y
Perf.
IWM
VB
+11.99%+8.09%
+6.82%+5.15%
+13.69%+10.84%
+44.01%+33.07%
+65.12%+58.81%
+31.42%+37.39%
Flows
IWM
VB
-$2.89B-$525M
-$1.59B+$273M
-$5.35B+$192M
-$3.95B+$744M
+$222M+$9.71B
-$3.59B+$14.37B
Volatility and drawdown
3M1Y3Y5Y
Volatility
IWM
VB
+22.01%+19.07%
+19.47%+16.87%
+21.26%+18.86%
+22.62%+20.67%
Max drawdown
IWM
VB
-10.06%-8.96%
-11.03%-8.96%
-27.52%-25.25%
-31.96%-28.14%
Max drawdown duration
IWM
VB
63d48d
82d48d
289d296d
1093d980d
Trading data

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IWM
VB
Last sale
5/4/2026 at 1:30 PM
$277.88
$283.39
Previous close
05/01/2026
$279.28
$284.82
Consolidated volume
05/01/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of April 30, 2026
1-year trailing difference

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IWM
VB
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 5/4/2026 at 1:30 PM
Live
Closed
IWM
VB
Last price
$277.88
$283.39
1D performance
-0.50%
-0.50%
AuM$77.89 B$76.36 B
E/R0.19%0.03%
Characteristics
IWM
VB
Management strategyPassivePassive
ProvideriSharesVanguard
BenchmarkRussell 2000 IndexCRSP U.S. Small Cap Index
N° of holdings16121154
Asset classEquitiesEquities
Trailing 12m distribution yield
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Inception dateMay 22, 2000January 26, 2004
ESGNoNo
TrackinsightTrackinsight

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Exposure

Countries

IWM
USA
92.1%
Other
7.9%
VB
USA
92.27%
Other
7.73%

Sectors

IWM
Industrials
15.39%
Health Care
15.1%
Financials
14.5%
Information Techn.
14.1%
Consumer Discreti.
8.42%
Other
32.5%
VB
Industrials
17.73%
Information Techn.
13.69%
Financials
11.12%
Health Care
10.78%
Consumer Discreti.
9.82%
Other
36.86%
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Diversification

IWM

Total weight of top 15 holdings out of 15

7.51%
VB

Total weight of top 15 holdings out of 15

5.69%

Top 15 holdings

Data as of March 31, 2026
IWM
BLOOM ENERGY CORP
1.01%
COEUR MINING INC
0.65%
FABRINET
0.64%
US65290E1010
0.60%
ECHOSTAR
0.54%
CREDO TECHNOLOGY GROUP HOLDING
0.52%
KRATOS DEFENSE AND SECURITY SOLS
0.43%
ADVANCED ENERGY INDUSTRIES
0.41%
STERLING INFRASTRUCTURE INC
0.41%
HECLA MINING
0.40%
BRIDGEBIO PHARMA
0.40%
GUARDANT HEALTH INC
0.39%
MODINE MNFC CO
0.39%
ENSIGN GROUP
0.38%
TTM TECHNOLOGIES
0.34%
VB
EMCOR GROUP
0.46%
NRG ENERGY
0.43%
ATMOS ENERGY
0.42%
TAPESTRY INC
0.40%
TECHNIPFMC PLC
0.38%
CIENA
0.38%
CASEYS GENERAL STORES
0.37%
JABIL CIRCUIT
0.37%
NATERA
0.37%
CHESAPEAKE ENERGY
0.37%
UTD THERAPEUT
0.36%
KYG3730V1059
0.35%
CURTISS WRIGHT
0.35%
LUMENTUM HOLDINGS
0.35%
COMFORT SYSTEMS USA
0.34%
Frequently asked questions about IWM and VB

How have the IWM and VB ETFs performed in 2026?

As of May 1, 2026, IWM is up 13.69% year-to-date (YTD), while VB has returned 10.84%. That puts IWM better performer ahead so far this year.

Which ETF is attracting more investor money: IWM or VB?

Year-to-date, the IWM ETF saw -$5.35B in flows, compared to +$192M for VB.

Which ETF is more volatile: IWM or VB?

Over the past year, IWM had a volatility of 19.47%, while VB experienced 16.87%.

Which ETF is bigger: IWM or VB?

As of May 1, 2026, IWM holds $77.89 B in assets under management (AUM), while VB manages $76.36 B.

What sectors do the IWM and VB ETFs invest in?

IWM leans toward sectors like Industrials, Health Care and Financials. Meanwhile, VB focuses on Industrials, Information Technology and Financials.

What are the top holdings of the IWM ETF and VB ETF?

IWM top holdings include BLOOM ENERGY CORP, COEUR MINING INC and FABRINET. VB holds in its top three: EMCOR GROUP, NRG ENERGY and ATMOS ENERGY.

Which ETF is more diversified: IWM or VB?

IWM holds 1934 securities with 7.51% of its assets in the top 15. VB has 1308 securities and a top 15 weight of 5.69%.

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