Vanguard’s Mid Cap Growth Filter Fails to Deliver on Its Investor Promise

If you’re building a portfolio that needs exposure to mid-cap companies with growth potential, you’re choosing between two paths: buying a broad mid-cap fund and accepting whatever mix of value and growth you get, or isolating the growth segment specifically. Vanguard Mid-Cap Growth Index Fund ETF Shares (NYSEARCA:VOT) takes the second approach, filtering for mid-cap companies expected to grow faster than their peers.

What VOT Actually Does in a Portfolio

VOT tracks growth-oriented mid-cap US equities, focusing on companies with market values between roughly $2 billion and $10 billion that show above-average earnings or revenue growth expectations. The fund holds over 150 positions with Technology and Industrials each representing 19.6% of the portfolio. This isn’t a bet on a single sector winning—it’s a diversified collection of mid-sized companies positioned to expand market share, scale operations, or benefit from secular trends that could drive returns beyond what established large-caps deliver.

The portfolio’s largest positions reflect the fund’s growth thesis in action. Constellation Energy (NASDAQ:CEG) leads at 3.06%, capitalizing on the energy transition, while Robinhood (NASDAQ:HOOD | HOOD Price Prediction) at 2.95% and DoorDash (NYSE:DASH) at 2.24% round out the top three—both companies disrupting traditional industries with digital-first business models. This concentration in disruptors rather than established players defines VOT’s approach.

Does It Deliver on the Growth Promise?

VOT’s five-year track record reveals a concerning pattern, with the fund returning 26.75% over that period. This means investors accepted growth-focused concentration risk without the premium returns typically expected from this strategy, raising questions about whether the growth filter consistently identifies winners in the mid-cap space.

The underperformance persists in recent periods, where VOT gained just 0.59% over the past year while SPDR S&P 500 ETF Trust (NYSEARCA:SPY) delivered 13.9%. This gap suggests the growth filter hasn’t adapted to an environment where large-cap technology and established businesses dominated returns, leaving mid-cap growth strategies struggling to keep pace.

The fund’s 0.07% expense ratio is competitive with peer mid-cap growth ETFs, making it an efficient vehicle from a cost perspective. However, analyst coverage notes VOT lags some mid-cap growth alternatives despite holding quality companies, reinforcing that the strategy itself—not the cost structure—drives the disappointing results relative to both peers and broader market benchmarks.

The Tradeoffs You Accept

Concentration risk in individual names creates vulnerability when top holdings stumble. A single position can drag down returns when it underperforms, demonstrating the risk of concentrated exposure in mid-cap names. Beyond individual stock risk, tax efficiency concerns exist for taxable accounts, with Vanguard historically distributing over 20% of fund value through capital gains in strong market years. The recent underperformance suggests the growth filter hasn’t consistently identified winners, raising questions about whether this strategy delivers on its core promise.

VOT provides diversified mid-cap growth exposure at low cost, but its track record raises questions about whether the strategy consistently captures the growth premium investors are paying for.