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Vanguard Mega Cap Growth ETF and S&P 500 Growth ETF differ on cost and breadth

MGK charges 0.05% versus 0.07% for VOOG, while VOOG holds 148 stocks compared with 56 in MGK.

Saturday, July 18, 2026 · Written up by our desk · ETFs

Yahoo Finance examined the tradeoffs between Vanguard’s S&P 500 Growth ETF (VOOG) and Vanguard Mega Cap Growth ETF (MGK), both of which provide low-cost exposure to U.S. growth stocks but differ in how their indexes select holdings.

According to the article, MGK targets only the largest market-capitalization names, while VOOG uses a wider sweep across the S&P 500 growth universe. The piece also notes that MGK’s expense ratio is slightly lower at 0.05%, compared with VOOG’s 0.07%.

The article said VOOG holds 148 positions, with Technology at 52%, Communication Services at 16%, and Consumer Cyclical at 9%. It cited top weights including Nvidia at 13.6%, Microsoft at 7.8%, and Apple at 6%, and described the fund as launched in 2010.

For MGK, the article said the portfolio is more concentrated, with 56 holdings and Technology at 59%, Communication Services at 17%, and Consumer Cyclical at 11%. It cited Nvidia at 13.24%, Apple at 12%, and Microsoft at 8%, and noted the fund launched in 2007, adding that VOOG’s trailing 12-month payout was higher than MGK’s on the cited share prices.

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