What Is MGK? Vanguard Mega Cap Growth ETF
Short answer
MGK is the Vanguard Mega Cap Growth ETF, a fund that tracks the CRSP US Mega Cap Growth Index at a 0.07% expense ratio. It holds only the very largest US growth companies (MSFT, AAPL, NVDA, AMZN), so it is even more top-heavy and tech-concentrated than VUG. Versus VUG, MGK drops the mid-sized growth names and leans harder into the mega-cap leaders, which makes it a more concentrated style bet.
What does MGK hold? (top 10)
Approximate weights as of early 2026; refresh quarterly from the issuer's fund page. Tickers link to the individual stock guide in Walnut.
Themes MGK is commonly used to express
ETFs are passive bundles; thematic baskets in Walnut let you concentrate within them. If you hold MGK as a core position, these are the themes you might layer on as satellites.
The bottom line on MGK
MGK is a concentrated mega-cap growth tilt, narrower and more tech-heavy than VUG. It works as a focused growth style tilt around a broad core, not as a diversified holding, and it overlaps heavily with the top of VOO and QQQ in a handful of mega-cap names.
Build a portfolio around MGK with Walnut
Use MGK as your core holding, then let Walnut's AI propose thematic satellites: AI infrastructure, dividend growth, clean energy, whatever you believe in. Connect your broker, build the basket in conversation, track it as one unit.
FAQ
What is MGK?
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MGK is the Vanguard Mega Cap Growth ETF, a single ticker that holds only the very largest US growth companies. It tracks the CRSP US Mega Cap Growth Index and is heavily concentrated in mega-cap technology, so it behaves like a focused growth bet on the biggest companies rather than a broad-market core.
What is MGK's expense ratio?
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0.07% per year (7 basis points) as of early 2026. On a $10,000 investment, that is about $7 per year in fees. Slightly higher than VUG's 0.04% but still low. Verify the current figure on the Vanguard site.
MGK vs VUG: what's the difference?
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Both are Vanguard large-cap growth funds, but MGK holds only mega-cap growth names while VUG also includes mid-sized large-cap growth companies. MGK is more top-heavy and concentrated in the biggest technology names. Walnut is not an investment adviser, so this is not a recommendation.
MGK vs VOO: which is broader?
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VOO holds the entire S&P 500, both growth and value, across roughly 500 names. MGK holds only the largest growth companies, so it is far more concentrated in mega-cap technology and more volatile. The two overlap heavily at the very top.
Does MGK pay a dividend?
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Yes, quarterly, but the yield is low, approximately 0.5% as of early 2026. Mega-cap growth companies tend to reinvest cash flow rather than pay large dividends, so MGK's yield is well below a broad-market fund.
What companies are in MGK?
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The largest US growth names, led by Microsoft, Apple, NVIDIA, Amazon, Meta, both share classes of Alphabet, Broadcom, Tesla, and Eli Lilly. The fund is very top-heavy in mega-cap technology. Weights are approximate, verify on the issuer's site.
What is MGK's AUM?
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Approximately $25 billion as of early 2026. The exact figure moves with markets and flows, so verify on the Vanguard site.
When was MGK created?
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December 2007. MGK is Vanguard's mega-cap growth style ETF, sitting at the most concentrated end of its growth lineup alongside the broader VUG.
How do I buy MGK?
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MGK trades like any stock during US market hours. Buy it through any broker: Robinhood, Fidelity, Schwab, Public, M1, Vanguard, or others. Fractional shares are supported at most modern brokers. Connect your broker to Walnut and the AI can show how MGK overlaps with what you already own.
Is MGK a good investment?
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MGK gives a concentrated mega-cap growth tilt that overlaps heavily with VUG, VOO, and QQQ in a handful of names. Whether it fits your portfolio depends on your time horizon and tolerance for concentration. Walnut is not an investment adviser, so this is not a recommendation.
Related ETFs
Walnut is informational, not investment advice. Holdings weights and fund statistics on this page are approximations stamped to early 2026; verify current figures against Vanguard's fund page or your broker before investing.