Vanguard S&P 500 ETF accounts for 1.3% of S&A Financial Services Inc.’s investment portfolio, making the stock its 25th biggest holding. Get Vanguard S&P 500 ETF alerts:Vanguard S&P 500 ETF Stock PerformanceVOO opened at $686.65 on Monday. Key Headlines Impacting Vanguard S&P 500 ETFVanguard S&P 500 ETF ProfileHere are the key news stories impacting Vanguard S&P 500 ETF this week:(Free Report)Vanguard 500 Index Fund (the Fund) is an open-end investment company, or mutual fund. The Fund offers four classes of shares: Investor Shares, Admiral Shares, Signal Shares, and Exchange Traded Fund (ETF) Shares. Receive News & Ratings for Vanguard S&P 500 ETF Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Vanguard S&P 500 ETF and related companies with MarketBeat.com's FREE daily email newsletter.