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MGC · Analysis updated Nov 10, 2026, 6:00 PM ET
Why is Vanguard Morningstar Mega Cap ETF (MGC) stock moving?
No news items or SEC filings were found for MGC in the relevant window, so this view rests only on price and volume. The ETF slipped from $280.68 on Oct 22 to $274.37 on Nov 10, about 2.2% lower, and has not regained its late-October high near $284.29. The sharpest move came on Nov 5, when it fell about 4.6% from $281.01 to $268.11 on roughly 152K shares, around 1.4 times the 30-day average of about 110K. Nov 6 traded on about 164K shares, also elevated, before volume normalized. Shares then recovered to $275.59 on Nov 9 and closed at $274.37 on Nov 10. Lower highs and a heavy-volume selloff point to modest negative momentum, but the rebound and the absence of any identifiable catalyst keep the picture balanced and low in confidence.
About Vanguard Morningstar Mega Cap ETF
Vanguard Morningstar Mega Cap ETF is a low-cost index fund that holds roughly 170–180 of the very largest US companies, such as NVIDIA, Apple, Microsoft, Amazon and Alphabet. It now tracks the Morningstar US Mega Cap Index (it used to follow a CRSP mega-cap index), and its top 10 holdings make up about 45% of the fund, so it leans more heavily on the biggest names than a broad S&P 500 fund does.
How the fund works
It is a passive fund that buys every stock in the Morningstar US Mega Cap Index, weighting each company by its market value. It charges a net expense ratio of about 0.05% a year, pays dividends every quarter (yield roughly 0.9%) and manages about $10–11 billion in assets. Technology makes up about 45% of the fund, so a few large tech companies drive much of its returns.
What usually moves MGC
- Share prices of the largest tech companies (NVIDIA, Apple, Microsoft)
- AI-related spending and earnings
- Overall US stock market direction
- Interest rates and Federal Reserve policy
- Large-cap earnings growth