IWRvsVOETF Comparison
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iShares Russell Mid-Cap ETF (IWR) and Vanguard Mid-Cap ETF (VO) belong to the same industry segment: US Mid Cap. Both ETFs have the same top 3 sector exposures: Industrials, Information Technology and Financials. IWR is more expensive with a Total Expense Ratio (TER) of 0.18%, versus 0.03% for VO. IWR is up 8.05% year-to-date (YTD) with +$1.99B in YTD flows. VO performs worse with 5.93% YTD performance, and +$2.83B in YTD flows. Run a side-by-side ETF comparison of IWR and VO 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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IWR vs VO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 04/27/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWR VO | +8.68%+8.24% | +3.49%+2.38% | +8.05%+5.93% | +25.51%+22.10% | +56.94%+54.76% | +41.62%+41.39% |
| Flows | IWR VO | +$1.13B+$457M | +$2.41B+$2.57B | +$1.99B+$2.83B | +$4.13B+$9.40B | +$9.72B+$20.24B | +$11.54B+$29.50B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWR VO | +16.22%+14.99% | +13.93%+12.65% | +15.97%+14.79% | +18.27%+17.59% |
| Max drawdown | IWR VO | -8.16%-8.12% | -8.16%-8.12% | -21.08%-18.93% | -26.20%-27.54% |
| Max drawdown duration | IWR VO | 49d49d | 49d49d | 239d211d | 854d972d |
Trading data
IWR | VO | |
Last sale 4/27/2026 at 1:30 PM | $103.75 | $76.58 |
| Previous close 04/24/2026 | $103.76 | $76.73 |
| Consolidated volume 04/24/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of March 31, 2026
1-year trailing difference
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IWR | VO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 4/27/2026 at 1:30 PM
Live
Closed
IWR | VO | |
|---|---|---|
| Last price | $103.75 | $76.58 |
| 1D performance | -0.01% | -0.20% |
| AuM | $52.09 B | $98.64 B |
| E/R | 0.18% | 0.03% |
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Exposure
Countries
IWR
USA
93.69%
Other
6.31%
VO
USA
92.71%
Other
7.29%
Sectors
IWR
Industrials
16.54%
Information Techn.
13.04%
Financials
12.07%
Consumer Discreti.
10.57%
Health Care
8.39%
Energy
7.34%
Other
32.04%
VO
Industrials
16.8%
Information Techn.
14.58%
Financials
12.17%
Consumer Discreti.
10.4%
Utilities
8.82%
Energy
8.76%
Other
28.46%
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Diversification
IWR
Total weight of top 15 holdings out of 15
9.59%
VO
Total weight of top 15 holdings out of 15
12.84%
Top 15 holdings
Data as of March 31, 2026
IWR
CORNING
0.84%
VERTIV HOLDINGS
0.76%
HOWMET AEROSPACE INC
0.73%
WESTERN DIGITAL
0.73%
US80004C2008
0.72%
BANK OF NEW YORK MELLON
0.65%
QUANTA SERVICES
0.64%
VALERO ENERGY
0.60%
CUMMINS
0.59%
MARATHON PETROLEUM
0.58%
PHILLIPS 66
0.58%
ROYAL CARIBBEAN GROUP
0.55%
HILTON INC
0.55%
ROSS STORES
0.55%
KINDER MORGAN
0.52%
VO
VERTIV HOLDINGS
1.02%
HOWMET AEROSPACE INC
1.00%
WESTERN DIGITAL
1.00%
CONSTELLATION ENERGY CORP
0.93%
SEAGATE TECHNOLOGY HOLDINGS PLC
0.93%
QUANTA SERVICES
0.89%
SCHLUMBERGER
0.84%
CUMMINS
0.81%
VALERO ENERGY
0.80%
PHILLIPS 66
0.79%
MARATHON PETROLEUM
0.78%
MOTOROLA SOLUTIONS
0.78%
CRH PLC
0.76%
ROSS STORES
0.76%
GENERAL MOTORS
0.73%
Frequently asked questions about IWR and VO
How have the IWR and VO ETFs performed in 2026?
As of April 27, 2026, IWR is up 8.05% year-to-date (YTD), while VO has returned 5.93%. That puts IWR better performer ahead so far this year.
Which ETF is attracting more investor money: IWR or VO?
Year-to-date, the IWR ETF saw +$1.99B in flows, compared to +$2.83B for VO.
Which ETF is more volatile: IWR or VO?
Over the past year, IWR had a volatility of 13.93%, while VO experienced 12.65%.
Which ETF is bigger: IWR or VO?
As of April 27, 2026, IWR holds $52.09 B in assets under management (AUM), while VO manages $98.64 B.
What sectors do the IWR and VO ETFs invest in?
IWR leans toward sectors like Industrials, Information Technology and Financials. Meanwhile, VO focuses on Industrials, Information Technology and Financials.
What are the top holdings of the IWR ETF and VO ETF?
IWR top holdings include CORNING, VERTIV HOLDINGS and HOWMET AEROSPACE INC. VO holds in its top three: VERTIV HOLDINGS, HOWMET AEROSPACE INC and WESTERN DIGITAL.
Which ETF is more diversified: IWR or VO?
IWR holds 806 securities with 9.59% of its assets in the top 15. VO has 289 securities and a top 15 weight of 12.84%.
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