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What is a mutual fund?

Quick answer

A mutual fund pools money from many investors to buy a diversified mix of stocks, bonds, or other assets, managed by professionals. It lets ordinary investors own a slice of a broad portfolio without picking each investment themselves. Many people's money is combined into one professionally managed pool.

Key things to understand

  1. Many people's money is combined into one professionally managed pool.
  2. The fund buys a spread of assets, so risk is diversified across many holdings.
  3. You own 'units' or shares representing your portion of the whole fund.
  4. Returns and losses are shared among investors in proportion to what they put in.
  5. Funds charge fees; 'index funds' track a market and usually cost less than active ones.

People also ask

How is a mutual fund different from a stock?
A stock is a share in one company; a mutual fund spreads your money across many investments at once, reducing the risk tied to any single one.
What is an index fund?
A mutual fund (or ETF) that simply tracks a market index, like the S&P 500, rather than being actively managed — typically with lower fees.
Are mutual funds safe?
They reduce risk through diversification but aren't risk-free — their value rises and falls with the markets. This is general educational information, not investment advice.
How does a mutual fund work?
You buy units; the pooled money is invested across many assets, and your units' value tracks that portfolio.

Part of the guide: Money Basics: Save, Borrow & Invest →