Nasdaqยท2025-09-16 14:51Group 1 - The Vanguard Mega Cap ETF (MGC) experienced an inflow of approximately $241.8 million, representing a 3.1% week-over-week increase in outstanding units from 32,634,267 to 33,634,267 [1] - The current share price of MGC is $242.03, which is close to its 52-week high of $242.42 and significantly above its low of $173.32 [3] - Notable underlying components of MGC include JPMorgan Chase & Co (down 0.4%), Berkshire Hathaway Inc New (down 0.5%), and Visa Inc (down 0.8%) [1] Group 2 - ETFs trade as "units" rather than "shares," and these units can be created or destroyed based on investor demand, impacting the underlying holdings [4] - Monitoring week-over-week changes in shares outstanding helps identify ETFs with significant inflows or outflows, which can affect the individual components held within those ETFs [4]