Investors in the U.S. equity market have a variety of options aimed at capturing aggressive growth, with the Vanguard Growth ETF (VUG) and the Vanguard Mega Cap Growth ETF (MGK) being prominently featured. Both funds exhibit a common investment philosophy focused on companies presented with substantial earnings and revenue potential. However, while VUG offers broader diversification, MGK is more concentrated on mega-cap stocks, presenting a compelling choice for investors with different preferences in their investment strategies.
A closer look at key metrics reveals that VUG, managed by Vanguard, has garnered $317.9 billion in assets under management, while MGK holds $27.9 billion. Both funds maintain low expense ratios, with VUG at 0.03% and MGK slightly higher at 0.05%. In terms of performance, as of May 2, 2026, VUG has achieved a one-year return of 31.66%, while MGK outperformed with a return of 32.71%. VUG also offers a dividend yield of 0.46%, compared to MGK’s 0.39%.
Volatility, measured by beta over the past five years, shows that both funds have similar levels, with VUG at 1.18 and MGK at 1.17. The max drawdown over five years for VUG is -35.61%, slightly better than MGK’s -36.02%. When examining the growth of an initial investment of $1,000 over five years, VUG would yield approximately $1,882, while MGK would result in about $1,957.
MGK is characterized by its concentrated exposure, containing only 59 holdings and predominantly focusing on the largest growth stocks in the U.S. market. The technology sector represents a significant portion, making up approximately 55% of its assets, followed closely by communication services and consumer cyclical sectors. Its major holdings include industry giants such as Nvidia, Apple, and Microsoft.
Conversely, VUG tracks a broader range of 153 holdings with a sector allocation that mirrors MGK, although technology accounts for 53%, followed by the other two sectors. Notably, while both funds share the same top holdings in Nvidia, Apple, and Microsoft, their allocations differ slightly: 35.31% for MGK and 34.73% for VUG.
The distinctions in diversification and fund size are essential factors for investors to consider. MGK’s narrow focus on companies with a market capitalization of at least $200 billion allows it to target a specific segment of the market, potentially leading to higher rewards—or risks—compared to the broader base of VUG, which includes large-cap stocks starting at a $10 billion market cap.
While historically the performance differences between the two funds have been marginal, with nearly identical one-year returns and similar five-year drawdowns, MGK has shown slight superiority in five-year growth. This performance suggests that investments in the technology sector have served MGK well in recent years.
Investors looking to diversify their portfolios across both large- and mega-cap growth stocks might find VUG more appealing. In contrast, those aiming to hone in on the largest names in the market could opt for MGK. Each fund presents a pathway to participate in the robust growth opportunities within the U.S. market, allowing investors to align their choices with their financial goals and risk tolerance.
