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ETF (Exchange-Traded Fund)

In short

Fund that trades like a stock on an exchange — flexible, low-cost diversification

An ETF is like a basket of stocks that trades on the stock exchange just like a share. Buy one ETF and you might own 500 companies. They combine the diversification of mutual funds with the trading flexibility of stocks.

ETFs hold baskets of securities and trade intraday on exchanges. They offer tax efficiency (lower turnover than mutual funds), transparency (daily holdings disclosure), and flexibility (can buy any amount, including fractional). ETF structures include physical replication and synthetic.

Related concepts

  • Index Fund — An index fund automatically owns every stock in an index (like the S&P 500). No stock picking. Very low fees. You get the market's return. Studies show 80-90% of active fund managers underperform index funds over 15 years.
  • Mutual Fund — A mutual fund pools money from many investors and a professional manager buys stocks on everyone's behalf. Unlike ETFs, they trade only at end-of-day prices. Many are actively managed (trying to beat the market) and charge higher fees.
  • Diversification — If you put all your money in one stock and it crashes, you lose everything. Spread it across 20 different stocks, sectors, and even countries — when one falls, others may rise, protecting your overall wealth.
  • Passive Investing — Passive investing means buying index funds and holding them forever. No stock picking, no market timing. You get exactly what the market returns, minus tiny fees. Research consistently shows it beats most active strategies over the long run.