Illustrated example
One ticker, many holdings
An ETF can package many securities into one tradable fund share.
Illustrative example only, not historical market data.Start here
Key takeaways
- An ETF is a pooled investment product traded on an exchange.
- Many ETFs track indexes, but ETFs can follow many different strategies.
- ETFs can have expenses, tracking differences, trading spreads, and tax considerations.
- Knowing the holdings and strategy matters more than recognizing the ticker.
Plain-English idea
An exchange-traded fund, or ETF, is a fund that owns a portfolio of assets and trades on an exchange. Buying one ETF share can give exposure to many stocks, bonds, or other holdings.
For example, a broad-market ETF might hold hundreds of companies. Instead of buying each company individually, an investor can buy the ETF and get a slice of the fund's portfolio.
Why people use ETFs
ETFs can make diversification easier. They can also be transparent, relatively low cost, and simple to trade through a brokerage account.
But an ETF is only as appropriate as what it owns and how it is built. A broad index ETF, a leveraged ETF, a niche commodity ETF, and a single-country ETF can have very different risks. ETFs are investments, not bank deposits, so they are not guaranteed and can lose money.
Trading and costs
Unlike a traditional mutual fund that usually prices once per day, an ETF trades during market hours. That means the market price can move throughout the day.
Costs can include the fund's expense ratio, bid-ask spreads, possible brokerage fees, and taxes. A low expense ratio is helpful, but it is not the only cost. NAV, or net asset value, is the fund's assets minus liabilities; an ETF can trade above NAV at a premium or below NAV at a discount.
Going deeper
Intermediate users should look under the ticker. What index or strategy does it follow? How concentrated are the holdings? Is it physically holding assets, using derivatives, or applying leverage?
Tracking difference matters too. An ETF may not perfectly match its benchmark because of fees, trading, sampling, cash drag, and market conditions.
References