But for many investors, S&P 500 index funds remain the overwhelming favorite when it comes to long-term investing. The S&P 500 index tracks the prices of the 500 largest U.S. public companies ...
This story appears in the May 2019 issue of National Geographic magazine ... the striped one at the base of the index finger is a mahi-mahi. ALL PHOTOGRAPHS MADE AT A TEMPORARY FIELD LAB, NOAA ...