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How to invest in index funds

The ins and outs of bundling stocks with this accessible investing option.

What is an index fund?

An index fund is a type of mutual fund or exchange-traded fund (ETF) that holds the same assets that are part of a market index, such as the S&P 500. Because of that, the price of the index fund moves the same as the market index.

3 steps to invest in index funds

Investing in ETF index funds is as simple as buying any other stock on the stock market. Here’s how it works:

1. Pick an index

An index fund tracks a market index, such as the S&P 500 or Nasdaq. These funds are made out of multiple stocks or other assets. That’s why the index fund performs similarly to the market index it tracks.

There are thousands of indexes to choose from, including those that track large companies, small companies, foreign companies, commodities like gold and silver and more. The most popular ones are:

  • S&P 500. This index tracks the 500 largest companies listed on US exchanges. Some of the most popular companies in this index include Amazon, American Express, Berkshire Hathaway, Google and FedEx.
  • Russel 2000. This index tracks the smallest 2,000 companies in the Russell 3000 Index. This includes companies like 3D Systems Corp, AMC Entertainment, Evofem Biosciences and Novavax.
  • Nasdaq Composite. This stock market index includes almost every stock listed on the Nasdaq stock exchange. It mostly includes companies in the information technology sector, such as Apple, eBay, Intel and Google.

2. Pick a fund for the index

Depending on which index you want to invest in, there could be multiple ETFs tracking it. For example, more than 15 ETFs track the S&P 500. The performance of all these ETFs is virtually the same; the difference is which company owns the index — whether it’s Vanguard, MSCI, iShares, Invesco or others.

Additional aspects to consider before you choose a fund are:

  • Expense ratio. This is the ETF’s annual fee. Luckily, it’s relatively low — typically less than 1% for popular funds — and rarely goes above 2% annually.
  • Leverage. Some ETFs are 2x or 3x leveraged. This means the fund will move two to three times as much as the index would move in either direction. Leveraged funds come with a lot of risk attached, so they’re not for beginner investors or for those with a low risk tolerance.
  • Long or short. Long ETFs rise if the index rises and fall if the index falls. Short ETFs move inversely — your investment rises if the index drops and vice versa.

3. Buy the index fund

Here’s how to buy an index fund from a brokerage account:

  1. Sign up and log in to your account.
  2. Search the fund’s ticker symbol or look for the fund manually.
  3. Enter the number of shares you want to buy and at what price.
  4. Review your order and submit.

Compare broker platforms to find the right one for your needs. Those who want to frequently trade ETFs, should consider a brokerage with $0 commissions on ETFs, like Questrade (free to buy, but there’s a fee to sell) or Wealthsimple.

Compare brokers to invest in index funds

1 - 6 of 6
Name Product Finder Rating Available Asset Types Stock Trading Fee Account Fee Signup Offer Table description
Interactive Brokers
Finder Score:
4.2 / 5
Stocks, Bonds, Options, Index Funds, ETFs, Currencies, Futures
min $1.00, max 0.5%
Winner for Best Overall Broker in the Finder Stock Trading Platform Awards.
Moomoo Financial Canada
Finder Score:
3.9 / 5
Stocks, Options, ETFs
Get up to $1,200 or a $1,200 Apple gift card
Trade US stocks for up to 90% less and access free real time stock quotes and level 2 market data. T&C's Apply.
CIBC Investor's Edge
Finder Score:
3.7 / 5
Stocks, Bonds, Options, Mutual Funds, ETFs
$0 if conditions met, or $100
100 free trades + up to $4,500 cash back
An easy-to-use platform with access to a variety of tools to help you trade with confidence.
RBC Direct Investing
Finder Score:
3.8 / 5
Stocks, Bonds, Options, Mutual Funds, ETFs, GICs
$6.95 - $9.95
$0 if conditions met, otherwise $25/quarter
Enjoy no minimum trading activity requirements and pay just $9.95 per trade or $6.95 if making 150 trades per quarter.
Finder Score:
3.9 / 5
Stocks, Bonds, Options, Mutual Funds, ETFs, GICs, International Equities, Precious Metals
$4.95 - $9.95
Get $50 in free trades when you fund your account with a minimum of $1,000.
Opt for self-directed investing and save on fees or get a pre-built portfolio to take out some of the guesswork.
Qtrade Direct Investing
Finder Score:
3.6 / 5
Stocks, Bonds, Options, Mutual Funds, ETFs, GICs
$6.95 - $8.75
$0 if conditions met, otherwise $25/quarter
Get up to a $150 sign-up bonus. Use code OFFER2024. Ends October 31, 2024.
Low trading commissions and an easy-to-use platform with access to powerful tools and a wide selection of investment options.

Benefits of investing in index funds

  • Diversification. By holding an index ETF, you have exposure to multiple companies or assets.
  • Cost. An index fund could hold hundreds of companies. By owning stocks of the fund, you indirectly invest in all these companies. If you want to invest in the same companies individually, you would have to make hundreds of transactions and potentially pay transaction fees.
  • Easy to trade. You can buy or sell ETF funds whenever you want during market hours and as easily as you would trade any individual stock.

Risks of investing in index funds

  • Losses. Like any investment, you take the bad with the good. When an index drops, so does your investment.
  • Tracking error. This could cause the ETF price and the market index to slightly differ. Add in the ETF’s annual fee and you could be looking at a worse performance than the market index it was supposed to match. Luckily, this rarely happens with popular index funds.

Are index funds good for beginners?

Yes. ETFs are one of the most beginner-friendly assets you can get. The fund buys shares from all the companies the market index tracks, and all you have to do is buy the fund’s shares.

If the fund holds dividend stocks, you’ll get dividend payments each quarter. If a company is delisted or listed in the index, the fund will adapt its portfolio accordingly.

The three popular index funds you can invest in are:

  1. Vanguard S&P 500 ETF (VOO). This fund tracks the S&P 500. It holds $789 billion of assets under management and costs 0.03% annually, or $0.3 for every $1,000 invested.
  2. Vanguard High Dividend Yield ETF (VYM). VYM tracks the FTSE High Dividend Yield Index. It holds $64 billion in assets and costs 0.06% annually, or $0.6 for every $1,000 invested.
  3. Vanguard Total World Stock ETF (VT). This ETF tracks the FTSE Global All Cap Index. It holds $34 billion of assets and costs 0.08% annually or $0.8 for every $1,000 invested.

Investing in index ETF funds vs. mutual funds

Most ETFs are similar to traditional index mutual funds in that they are low-cost and track a major underlying index, though there are several key differences:

Trade and listingPricingWhen to buy and sellMinimum investmentFees
ETFsTraded like shares on the stock exchangeMarket value, depends on stock market performanceAny time during the trading dayLower minimum — sometimes under $100
  • Commission on some brokerages
  • Lower taxation and management fees
Mutual fundsUnlisted and bought from issuerNet asset value of underlying securities.At the end of the trading dayCan require as much as $2,500
  • No transaction fees
  • Some charge load fees

Bottom line

  • Index funds are well-diversified, accessible investments, making them a popular choice for all types of investors.
  • But there are also riskier and more complex index funds you can buy.
  • To invest in index funds you have to pick an index, then choose a fund that tracks the index and finally buy shares of the index fund you want.

Frequently asked questions

Disclaimer: This information should not be interpreted as an endorsement of futures, stocks, ETFs, options or any specific provider, service or offering. It should not be relied upon as investment advice or construed as providing recommendations of any kind. Futures, stocks, ETFs and options trading involves substantial risk of loss and therefore are not appropriate for all investors. Trading forex on leverage comes with a higher risk of losing money rapidly. Past performance is not an indication of future results. Consider your own circumstances, and obtain your own advice, before making any trades.

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Written by

Kliment Dukovski

Kliment Dukovski was a personal finance writer at Finder, specializing in investments and cryptocurrency. He's written more than 700 articles to help readers compare the best trading platforms, understand complex investment terms and find the best credit cards for their needs. His expert commentary has been featured in such digital publications as Fox Business, MSN Money and MediaFeed. He’s also well-versed in money transfers, home loans and more — breaking down these topics into simple concepts anyone can understand. In another life, Kliment ghostwrote guides and articles on foreign exchange, stock market trading and cryptocurrencies. See full profile

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