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How to Invest in Index Funds: A Beginner's Guide

By Matthew Frankel, CFPUpdated Apr 13, 2026 at 2:21 PM EST | Fact-checked by Frank Bass

Key Points

  • Index funds replicate market indices like S&P 500, allowing broad market investment.
  • Choosing low-cost index funds is crucial for minimizing fees and maximizing returns.
  • Index funds offer an easy, diversified long-term investment strategy suitable for many.

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How to Invest in Index Funds: A Beginner's Guide | The Motley Fool