What is an ETF?
A basket of assets
An Exchange Traded Fund (ETF) is a collection of stocks, bonds, or other assets bundled together into a single fund that trades on an exchange — just like a stock. When you buy one share of an ETF, you get exposure to every asset inside that fund. For example, the SPY ETF holds all 500 companies in the S&P 500 index.
Instant diversification
The biggest advantage of ETFs is diversification. Instead of buying 10 or 20 individual stocks, you can buy one ETF and instantly own a small piece of hundreds of companies. This spreads out your risk: if one company performs poorly, it only has a small impact on the overall fund.
Low costs and flexibility
ETFs are known for their low fees, called expense ratios. Many popular ETFs charge less than 0.10% per year — that is $1 for every $1,000 invested. They also trade throughout the day like stocks, so you can buy or sell at any time the market is open. This makes them a favorite tool for both beginners and professional investors.
Types of ETFs
There are ETFs for almost everything: broad market index funds (SPY, VTI), sector funds (technology, healthcare), bond funds, international market funds, and even commodity funds like GLD (gold) or USO (oil). Some ETFs are actively managed, but most simply track an index, which keeps costs low and performance predictable.
Key Takeaways
- An ETF is a basket of assets that trades like a single stock.
- ETFs provide instant diversification in one trade.
- They have low fees and can be bought or sold throughout the day.
- There are ETFs for stocks, bonds, commodities, and more.
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