When John Bogle died in 2019, people around the world mourned. Bogle created the Vanguard Group and made the index fund mainstream. Index funds are investment vehicles that invest in a class of investments as a whole, rather than trying to predict what specific stocks or securities will do best. So an investor could invest in an index fund that represented American companies as a whole rather than trying to predict whether Disney, Apple, or Meta would have a better quarter.
