Vanguard s&p index fund etf
B).2 The S&P 500 was the benchmark of the first index fund, and the first ETF. An S&P 500 ETF Cheapest S&P 500 Index ETF: Vanguard S&P 500 ETF (VOO). Learn everything you need to know about Vanguard S&P 500 ETF (VOO) and how it ranks compared to other funds. Research performance, expense ratio,