Vanguard S&P 500 Value Index Fund ETF Shares seeks to track the performance of the S&P 500 Value Index that measures the investment return of large-capitalization value stocks in the United States. The fund employs an indexing investment approach designed to track the performance of the S&P 500 Value Index, which represents the value companies, as determined by the index sponsor, of the S&P 500 Index. The index measures the performance of large-capitalization value companies in the United States.