Vanguard Morningstar Mid-Cap ETF

VO
ETF Ticker

+12.67%

+12.26%

NYSE Arca Exchange

Equity

United States

Mid & Small Cap

ETF Strategy Fund Grade AAA

The Vanguard Morningstar Mid-Cap ETF, VO_US, is listed on the NYSE Arca Exchange and tracks the Morningstar US Mid Cap index. The fund provides exposure to United States, Mid & Small Cap Equity and has assets under management of $107,900.0m (as of Aug 31, 2026). The ETF trades in USD and was listed on the exchange on Jan 26, 2004. It has a net expense ratio of 4bps. (All data in USD as of Oct 15, 2026 unless stated.)

The underlying Morningstar US Mid Cap Index offers float-adjusted market-cap exposure to US companies ranked between 70% and 85% of the investable US equity market by cumulative company market cap, using Morningstar’s breakpoint targets (70/85/98). Turnover control relies on banding and “packeting”: shared bands around the 70% and 85% thresholds (e.g., ~64–76% and ~81–89%) trigger 50% migration tranches only after a company fully crosses a band into the adjacent core; remaining packets move if it persists across reviews. Constituents must satisfy Morningstar investability (e.g., minimum public float ~12.5% and a sparse-trading score threshold based on ADTV/float shares), with weights based on effective float factors rounded to 5-point increments. Reconstitution occurs quarterly with a five-day transition window; corporate actions are reflected promptly while preserving banding discipline.

ETF Details

Key Facts

Issuer:
Vanguard
AUM:
$107,900.0m (as of Aug 31, 2026)
Net Expense Ratio:
4 bps
Inception Date:
Jan 26, 2004
Index:
Morningstar US Mid Cap Index
Dividend Frequency:
Annually

Trading

Ticker:
VO
Exchange:
NYSE Arca Exchange
ISIN:
US9229086296
Trading Currency:
USD
Domicile:
United States

Classification & Risk

Asset Class:
Equity
Asset Region:
United States
Theme:
Mid & Small Cap
Economic Development:
Developed Markets
1 Year Volatility:
12.51%
3 Year Volatility:
14.67%
5 Year Volatility:
17.56%

Performance

TTM Dividend Yield:
0.38% (verify with issuer)
1 Month Performance:
1.42%
3 Month Performance:
0.91%
6 Month Performance:
7.90%
1 Year Performance:
12.26%
3 Year Performance:
64.13%
5 Year Performance:
41.26%
Investment Proposition

Vanguard Morningstar Mid-Cap ETF (VO) provides broad exposure to U.S. mid-capitalization companies in a single, diversified sleeve. The strategy seeks to capture the middle of the corporate lifecycle, where firms often balance reinvestment and operating discipline, by tracking a rules-based universe with scheduled reconstitutions and market-cap representation. The resulting portfolio blends elements of growth optionality and established profitability, typically distributing weights across industries and limiting single-name dominance relative to narrower approaches. Key characteristics include moderate sensitivity to economic cycles, potential for secular compounders emerging from smaller size cohorts, and less dependence on a handful of mega-caps. Use cases include a core U.S. equity building block, a satellite size tilt alongside large-cap exposure, and factor completion within a diversified model. Suitable investors include long-horizon allocators seeking balanced growth with broad sector reach, and model-portfolio builders requiring scalable, low-maintenance exposure. Performance tends to align with mid-cycle expansions and healthy corporate activity; leadership may be challenged during narrow, mega-cap-led surges or deep small-cap rebounds. A fund-specific risk to monitor is size migration around reconstitution, which can influence turnover and short-term tracking outcomes.

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