S&P 500 index funds like VFIAX and SWPPX can be an easy and inexpensive way to round out most investment portfolios. Many, or all, of the products featured on this page are from our advertising ...
Ellen Lindner / Investopedia When people talk about “the market,” they’re often referring to the performance of the S&P 500 index. Since 1957, this benchmark index has delivered an average ...