The Vanguard Large Cap ETF (Ticker: VV) seeks investment results that correspond generally to the performance, before fees and expenses, of the MSCI US Prime Market 750 Index represents the universe of large and medium capitalization companies in the US equity market. The MSCI US Prime Market 750 Index is the aggregation of the MSCI US Large Cap 300 and Mid Cap 450 Indices. Companies range in size rank from 1-751, with buffers extending down to 1,100. Buffer zones help limit index turnover caused by temporary migration of securities from one size index to another during quarterly size reviews. Companies below the MSCI Mid Cap 450 Index 1,100 buffer zone are moved entirely out of the MSCI US Prime Market 750 Index during quarterly reviews.