Designed to provide broad exposure to the Large Cap Growth segment of the US equity market, the Vanguard Mega Cap Growth ETF (MGK) is a passively managed exchange traded fund launched on December 17, 2007.The fund is sponsored by Vanguard. It has amassed assets over $28.92 billion, making it one of the largest ETFs attempting to match the Large Cap Growth segment of the US equity market.Why Large Cap GrowthCompanies that find themselves in the large cap category typically have a market capitalization above ...