VO ETF Analysis: Holdings, Fees, Inception, Sectors, And Portfolio Role

Investor Checklist

• Issuer and listing venue: Vanguard, NYSEARCA.
• Launch date and fee: Jan 26, 2004, 0.03%.
• Portfolio size and concentration: 300 holdings, with the top 10 at 10.63%.
• Primary exposure: Equity; Mid-Cap Blend; North America; Index: CRSP US Mid Cap
• Best use case: U.S. size diversification sleeve that can reduce reliance on mega-cap stocks.
• Main risk to respect: The key risk is that VO's stated diversification may not protect investors if its dominant exposure, largest holdings, or main macro factor reverses. Current top-10 concentration is 10.63%.

VO Investor Snapshot

VO is Vanguard Mid-Cap ETF, issued by Vanguard. It is best understood as a size diversification sleeve away from mega-cap stocks. The fund has $99.26B in AUM, charges 0.03%, holds 300 holdings, and has top-10 concentration of 10.63%. Its largest listed holdings include Western Digital Corporation (1.49%), Seagate Technology Holdings plc (1.48%), Vertiv Holdings Co (1.25%).

VO ETF Facts: Launch Date, Issuer, Fee, Assets, And Strategy

VO is Vanguard Mid-Cap ETF. Issuer: Vanguard. Exchange: NYSEARCA. Inception: Jan 26, 2004. Expense ratio: 0.03%. AUM: $99.26B. Mandate or tracked index: CRSP US Mid Cap

VO Top Holdings And Concentration

Holdings snapshot: Apr 30, 2026. VO has 300 holdings. The top 10 positions account for 10.63%, so investors should read the fund through its largest holdings first rather than assuming every ETF is equally diversified.

• $WDC - Western Digital Corporation: 1.49%
• $STX - Seagate Technology Holdings plc: 1.48%
• $VRT - Vertiv Holdings Co: 1.25%
• $PWR - Quanta Services, Inc.: 1.10%
• $HWM - Howmet Aerospace Inc.: 0.98%
• $CEG - Constellation Energy Corporation: 0.97%
• $CMI - Cummins Inc.: 0.94%
• $SLB - SLB N.V.: 0.86%
• $CRH - CRH plc: 0.80%
• $VLO - Valero Energy Corporation: 0.76%

VO Sector And Industry Exposure

VO exposure summary: Equity; Mid-Cap Blend; North America; Index: CRSP US Mid Cap. These exposures explain what investors actually own after buying the ETF. A broad fund is usually driven by sector weights and mega-cap leadership; a sector or thematic fund is driven by the industry cycle; a bond or alternative asset fund is driven by macro variables rather than company earnings.

• Industrials: 17.57%. Sector weight from the latest public ETF holdings snapshot.
• Financials: 14.83%. Sector weight from the latest public ETF holdings snapshot.
• Technology: 12.72%. Sector weight from the latest public ETF holdings snapshot.
• Consumer Discretionary: 10.50%. Sector weight from the latest public ETF holdings snapshot.
• Utilities: 8.61%. Sector weight from the latest public ETF holdings snapshot.
• Health Care: 8.11%. Sector weight from the latest public ETF holdings snapshot.
• Real Estate: 6.26%. Sector weight from the latest public ETF holdings snapshot.
• Energy: 6.05%. Sector weight from the latest public ETF holdings snapshot.
• Consumer Staples: 5.97%. Sector weight from the latest public ETF holdings snapshot.
• Materials: 5.22%. Sector weight from the latest public ETF holdings snapshot.

VO Fees, Liquidity, And Product Structure

VO trades on NYSEARCA. The stated expense ratio is 0.03%, and current AUM is $99.26B. Lower fees matter most for long holding periods, while AUM and trading depth matter when investors place larger orders or need reliable execution during volatile sessions.

VO Return Drivers: What Has To Go Right

The return drivers for VO are domestic earnings breadth, credit conditions, rates, refinancing costs, and small-cap risk appetite. That matters because two ETFs can both look diversified but respond to very different conditions. For VO, investors should compare price performance with the fund's dominant exposure, the largest holdings, and the macro factor behind the category.

VO Current Market Theme

Vanguard Mid-Cap ETF is a Mid-Cap Blend ETF with $99.26B in AUM, 300 holdings, top-10 concentration of 10.63%, and a leading exposure to Industrials (17.57%). The largest holdings include Western Digital Corporation (1.49%), Seagate Technology Holdings plc (1.48%), Vertiv Holdings Co (1.25%).

When VO Tends To Work

VO tends to work when domestic earnings breadth, credit conditions, rates, refinancing costs, and small-cap risk appetite are moving in the fund's favor.

VO Portfolio Role: Core Holding Or Satellite Position?

U.S. size diversification sleeve that can reduce reliance on mega-cap stocks. In practical portfolio terms, VO should be sized according to whether it is replacing broad market exposure, adding a factor tilt, expressing a sector view, or hedging a macro risk. The more concentrated the fund, the less it should be treated as a complete portfolio by itself.

VO Key Risks Investors Should Watch

The main risks are specific enough to check before buying, not generic ETF fine print.

• Market risk: VO can fall with its asset class even when the fund structure works as designed.
• Concentration risk: top-10 weight is 10.63%, which is low for an ETF in this category.
• Exposure risk: the main exposure is Equity; Mid-Cap Blend; North America; Index: CRSP US Mid Cap
• Fee and trading risk: expense ratio is 0.03%; investors should still check spread, volume, and premium/discount before large orders.
• Thesis risk: The key risk is that VO's stated diversification may not protect investors if its dominant exposure, largest holdings, or main macro factor reverses. Current top-10 concentration is 10.63%.

Who VO Is Suitable For

VO can be useful, but the right investor depends on time horizon, existing overlap, and drawdown tolerance.

• More suitable for investors who need a size diversification sleeve away from mega-cap stocks.
• More suitable for investors who understand that VO's top holdings and sector exposures can dominate short-term returns.
• Less suitable for investors who need stable cash income unless the fund's underlying asset class is explicitly income-oriented.
• Less suitable for investors already heavily exposed to the same largest holdings or same macro factor.

VO What To Monitor Next

VO should be reviewed after new holdings files, major market moves, or category-specific catalysts. The most important checks are:

• Holdings as of Apr 30, 2026.
• AUM: $99.26B.
• Expense ratio: 0.03%.
• Top-10 weight: 10.63%.

VO Action Reference

A useful ETF article should end with a decision framework. For VO, the practical read is:

• Core-index investor: use as a satellite rather than a replacement for broad diversification.
• Theme investor: check whether the latest holdings still match the investment thesis.
• Risk-control investor: cap position size because sector/factor ETFs can underperform for long stretches.

VO Bottom Line

VO is not just a fund name. It is a package of exposures: Vanguard Mid-Cap ETF; issuer Vanguard; fee 0.03%; AUM $99.26B; 300 holdings; top-10 weight 10.63%; holdings date Apr 30, 2026. The investment case is strongest when the fund's largest holdings, main exposure, and category-level return drivers all point in the same direction.

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