VOvsIMCBETF Comparison
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Vanguard Mid-Cap ETF (VO) and iShares Morningstar Mid-Cap ETF (IMCB) belong to the same industry segment: US Mid Cap. Both ETFs have the same top 3 sector exposures: Industrials, Information Technology and Financials. VO is less expensive with a Total Expense Ratio (TER) of 0.03%, versus 0.04% for IMCB. VO is up 7.03% year-to-date (YTD) with +$2.91B in YTD flows. IMCB performs better with 9.74% YTD performance, and +$21M in YTD flows. Run a side-by-side ETF comparison of VO and IMCB 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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VO vs IMCB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 04/30/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | VO IMCB | +10.10%+11.18% | +4.84%+6.49% | +7.03%+9.74% | +22.60%+25.73% | +55.14%+57.48% | +43.98%+48.21% |
| Flows | VO IMCB | +$511M-$9M | +$2.49B+$8M | +$2.91B+$21M | +$8.76B+$295M | +$20.31B+$406M | +$29.55B+$313M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | VO IMCB | +15.41%+16.13% | +12.79%+13.27% | +14.82%+15.30% | +17.61%+17.73% |
| Max drawdown | VO IMCB | -8.12%-8.06% | -8.12%-8.06% | -18.93%-19.88% | -27.54%-25.13% |
| Max drawdown duration | VO IMCB | 49d49d | 49d49d | 211d238d | 972d835d |
Trading data
VO | IMCB | |
Last sale 5/1/2026 at 2:48 PM | $77.42 | $90.58 |
| Previous close 04/29/2026 | $77.31 | $90.50 |
| Consolidated volume 04/29/2026 | ||
| 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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VO | IMCB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 5/1/2026 at 2:48 PM
Live
Closed
VO | IMCB | |
|---|---|---|
| Last price | $77.42 | $90.58 |
| 1D performance | +0.14% | +0.09% |
| AuM | $99.75 B | $1.55 B |
| E/R | 0.03% | 0.04% |
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Exposure
Countries
VO
USA
92.71%
Other
7.29%
IMCB
USA
92.64%
Other
7.36%
Sectors
VO
Industrials
16.8%
Information Techn.
14.58%
Financials
12.17%
Consumer Discreti.
10.4%
Utilities
8.82%
Energy
8.76%
Other
28.46%
IMCB
Industrials
18.09%
Information Techn.
14.67%
Financials
11.95%
Consumer Discreti.
9.78%
Health Care
8.16%
Energy
7.88%
Other
29.47%
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Diversification
VO
Total weight of top 15 holdings out of 15
12.84%
IMCB
Total weight of top 15 holdings out of 15
10.08%
Top 15 holdings
Data as of March 31, 2026
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%
IMCB
NEWMONT CORP
0.89%
CORNING
0.77%
VERTIV HOLDINGS
0.71%
WESTERN DIGITAL
0.69%
HOWMET AEROSPACE INC
0.67%
US80004C2008
0.67%
WILLIAMS
0.67%
SEAGATE TECHNOLOGY HOLDINGS PLC
0.66%
MARVELL TECHNOLOGY
0.65%
FREEPORT-MCMORAN INC
0.64%
PNC FINL SVC
0.63%
BANK OF NEW YORK MELLON
0.61%
QUANTA SERVICES
0.61%
US
0.61%
JOHNSON CONTROLS INTERNATIONAL
0.60%
Frequently asked questions about VO and IMCB
How have the VO and IMCB ETFs performed in 2026?
As of April 30, 2026, VO is up 7.03% year-to-date (YTD), while IMCB has returned 9.74%. That puts IMCB better performer ahead so far this year.
Which ETF is attracting more investor money: VO or IMCB?
Year-to-date, the VO ETF saw +$2.91B in flows, compared to +$21M for IMCB.
Which ETF is more volatile: VO or IMCB?
Over the past year, VO had a volatility of 12.79%, while IMCB experienced 13.27%.
Which ETF is bigger: VO or IMCB?
As of April 30, 2026, VO holds $99.75 B in assets under management (AUM), while IMCB manages $1.55 B.
What sectors do the VO and IMCB ETFs invest in?
VO leans toward sectors like Industrials, Information Technology and Financials. Meanwhile, IMCB focuses on Industrials, Information Technology and Financials.
What are the top holdings of the VO ETF and IMCB ETF?
VO top holdings include VERTIV HOLDINGS, HOWMET AEROSPACE INC and WESTERN DIGITAL. IMCB holds in its top three: NEWMONT CORP, CORNING and VERTIV HOLDINGS.
Which ETF is more diversified: VO or IMCB?
VO holds 289 securities with 12.84% of its assets in the top 15. IMCB has 404 securities and a top 15 weight of 10.08%.
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