Investment Types

Index Fund: Definition

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Simple Definition

A fund that copies a market index like the S&P 500. Low fees, easy investing.

Why It Matters

Index funds are the closest thing to a cheat code in investing. They beat 90% of professional fund managers over 15+ years. Why? Because they just buy and hold everything in an index, avoiding the fees and mistakes that come with trying to pick winners.

Key Points

  • Index funds and ETFs are very similar - the main difference is how you buy them
  • You're not trying to beat the market, you ARE the market
  • Vanguard invented the first index fund in 1976 - it was called "un-American" at the time

Related Terms

Common Questions

A fund that copies a market index like the S&P 500. Low fees, easy investing. Index funds are the closest thing to a cheat code in investing. They beat 90% of professional fund managers over 15+ years.

Index funds are the closest thing to a cheat code in investing. They beat 90% of professional fund managers over 15+ years. Why? Because they just buy and hold everything in an index, avoiding the fees and mistakes that come with trying to pick winners.

Index funds and ETFs are very similar - the main difference is how you buy them

You're not trying to beat the market, you ARE the market

Vanguard invented the first index fund in 1976 - it was called "un-American" at the time