MGK — Vanguard Mega Cap Growth Index Fund

MGK Price Performance — Growth of $10,000

Value of a $10,000 investment in MGK over time, compared with SPY. Both lines are rebased to $10,000 on the first shared date. Based on total returns — prices are adjusted for dividends and splits, so this assumes distributions were reinvested. Hover or tap the chart for exact values.

MGK Drawdown

The "underwater" chart: MGK's decline from its highest prior value at each point in time. It shows how deep past losses ran and how long the fund took to recover to break-even.

Overview

The Vanguard Mega Cap Growth Index Fund, trading under the ticker MGK, operates within the US Large Cap Growth category where ETFValuer tracks 13 funds. Issued by Vanguard, this fund has accumulated assets under management of $33.3 billion and trades at a price of $85.06. It holds an overall rank of #206 out of 458 tracked ETFs across all categories and has received an ETFValuer grade of C with a score of 62.2 out of 100. The fund offers a low expense ratio of 0.05% while providing a dividend yield of 0.33%. The substantial asset size and low cost structure suggest significant investor adoption relative to the broader universe of tracked funds.

Recent price action shows a decline of 2.42% over one day and a further drop of 3.54% over one week, followed by a slight monthly loss of 0.40%. Despite these short-term setbacks, the fund posted a year-to-date return of 3.71% and a six-month gain of 6.15%. The three-month period saw a recovery with a return of 1.31%, leading into a one-year return of 14.22%. Over a longer three-year horizon, the fund has generated a total return of 77.62%, indicating a significant divergence between recent short-term volatility and long-term growth trends.

The fund carries a Moderate volatility label and exhibits a beta of 1.26, suggesting it tends to move more aggressively than the broader market. A Sharpe ratio of 0.51 indicates the risk-adjusted returns have been moderate relative to the volatility experienced. The maximum drawdown of -23.36% highlights the potential for significant temporary losses during market downturns. This combination of a beta above 1.0 and a substantial maximum drawdown implies the fund amplifies market movements in both directions. Investors should expect higher fluctuations in value compared to lower-beta alternatives while seeking the growth associated with the US Large Cap Growth category.

AI-generated summary based on the data on this page.

MGK Top Holdings

Holdings as of 2026-03-31 per the fund's most recent SEC N-PORT-P filing. Top 10 holdings make up 65.8% of net assets — a rough gauge of concentration risk (the higher this figure, the more the fund's return depends on a handful of names). To see how MGK's holdings overlap with other ETFs you own or are considering, check the Stock Overlap tool.

Which Funds Overlap With MGK

Holding two funds that own the same companies adds cost and complexity without adding much diversification. These tracked ETFs share the most names with MGK's top 10 — ESGV overlaps most, holding 9 of the same companies as MGK's top 10 (65.8% of MGK's assets).

Compares the top 10 reported holdings of each fund, so it's a floor on true overlap — two S&P 500 trackers overlap ~100% even when only 10 names are listed. Use the Stock Overlap tool to search by individual company.

Market Backdrop

10-Year Treasury Yield: 4.71% (as of 2026-07-23) — The yield on 10-year US Treasury bonds — the standard "risk-free rate" benchmark used to contextualize this fund’s Sharpe ratio and returns.

CBOE Volatility Index (VIX): 18.70 (as of 2026-07-23) — A real-time gauge of expected S&P 500 volatility over the next 30 days — useful context for this fund’s own volatility label.

Federal Funds Rate: 3.63% (as of 2026-06-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.

MGK Liquidity, Domicile & Tax Treatment

Liquidity: Quoted bid/ask spread is 0.60% and average daily volume is 1.6M/day. Tighter spreads and higher volume mean lower round-trip trading costs; this is a live-market snapshot and can widen during volatile sessions. AUM of $33.3B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.

Domicile & tax treatment: MGK is a US-domiciled, SEC-registered ('40 Act) exchange-traded fund. Dividends and capital gains distributions are reported to US investors on Form 1099-DIV, and the fund is not subject to the PFIC reporting or UCITS-specific rules that apply to Irish- or Luxembourg-domiciled funds. Non-US investors should note that US-domiciled ETFs are generally subject to 30% US withholding tax on dividends (unless reduced by treaty) and to US estate tax exposure on the position — Irish-domiciled UCITS ETFs tracking the same index often avoid both, which is why non-US residents frequently prefer the UCITS equivalent where one exists. This is general information, not tax advice — consult a tax professional for your situation.

MGK Performance History

How MGK Compares to Other US Large Cap Growth ETFs