Popularized in the 1970s by the founder of Vanguard, John Bogle, the index fund is a dope invention and John Bogle is considered a genius ( here’s more on index funds).
You can probably connect the dots now about why index funds are so popular. They eliminate a lot of guesswork. Popularized in the 1970s by the founder of Vanguard, John Bogle, the index fund is a dope invention and John Bogle is considered a genius ( here’s more on index funds).