VOO vs. MGK: Is S&P 500 Stability or Mega-Cap Growth the Better Buy for Investors?

Katie Brockman, The Motley Fool

Sat, April 18, 2026 astatine 5:19 PM CDT 4 min read

The Vanguard S&P 500 ETF (NYSEMKT:VOO) and the Vanguard Mega Cap Growth ETF (NYSEMKT:MGK) some connection vulnerability to immoderate of the largest and astir influential U.S. companies, but this examination highlights their 2 chiseled approaches.

While VOO mirrors the S&P 500 for wide marketplace exposure, MGK zeroes successful connected the mega-cap maturation conception — amplifying some hazard and imaginable reward. Understanding their differences successful cost, performance, assemblage allocation, and hazard tin assistance clarify which whitethorn beryllium a amended acceptable for your portfolio.

Beta measures terms volatility comparative to the S&P 500; beta is calculated from five-year monthly returns. The 1-yr instrumentality represents full instrumentality implicit the trailing 12 months.

VOO is much affordable successful presumption of fees with a somewhat little disbursal ratio. It besides pays a substantially higher dividend yield, which whitethorn entreaty to income-focused investors.

MGK focuses connected the largest U.S. maturation stocks. Around 55% of its portfolio is allocated to technology, with 17% toward connection services and 13% to user cyclical companies. The money holds conscionable 59 stocks, led by outsized positions successful Nvidia, Apple, and Microsoft.

In contrast, VOO tracks the S&P 500, offering broader assemblage diversification: 34% successful technology, 12% successful fiscal services, and 11% successful connection services. Its apical holdings are the aforesaid tech giants arsenic MGK, but with smaller weights. This results successful little volatility and a risk-return illustration that intimately matches the wide U.S. equity market.

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