ETF (Exchange-Traded Fund)

A fund that trades like a stock

An ETF holds a basket of investments, often hundreds or thousands of stocks or bonds, and divides ownership into units that trade on an exchange. In that sense it is a close cousin of the mutual fund: pooled money, instant diversification, professional administration. The difference is the wrapper. A mutual fund prices once a day at its NAV and you transact with the fund company; an ETF trades all day at market prices that normally sit very close to its NAV, and you transact with other investors on the exchange.

The large majority of ETF money sits in index funds: funds that hold everything in a market index rather than paying a manager to pick winners. Indexing is what makes the famous low fees possible, since tracking an index costs almost nothing to run.

How you buy one, and the hidden cost

You buy ETFs through any brokerage account, registered or taxable. Many Canadian brokerages now charge no commissions on ETF trades (as of July 2026), so the old advice to avoid ETFs for small purchases has largely expired; buying $100 of an ETF each payday is now realistic.

The cost that never disappears is the bid-ask spread: the small gap between the price buyers are offering and the price sellers are asking. Cross it and you pay a sliver on every trade. For large, heavily traded broad-market ETFs the spread is typically a penny or two per unit, effectively negligible. For niche or thinly traded ETFs it can be many times wider. Two habits keep it cheap: use limit orders rather than market orders, and avoid trading in the first and last minutes of the day when spreads are widest.

ETF vs mutual fund in Canada

For Canadian investors, the ETF vs mutual fund decision is mostly a decision about fees and channel: rock-bottom costs with self-service, or higher costs with a branch or advisor doing the work. The MER gap is the headline number.

Asset-allocation ETFs: the one-fund portfolio

The quiet revolution for DIY Canadians is the asset-allocation ETF: a single fund that holds thousands of stocks and bonds across Canada, the US and international markets in a fixed mix, such as 100% equity, 80/20, 60/40 or more conservative blends, and rebalances itself automatically. Fees run around 0.20% to 0.25% per year.

One purchase buys a complete, globally diversified, self-rebalancing portfolio. There is nothing to monitor except your own contributions, no rebalancing math, and no temptation to tinker. For most people who want to manage their own investments without making investing a hobby, a single asset-allocation ETF held in the right accounts is a legitimate entire strategy, not a compromise.

Beyond plain index ETFs

The ETF wrapper now holds almost every strategy imaginable, and not all of them deserve your money. Sector ETFs concentrate on one industry, which adds concentration risk that broad funds exist to remove. Bond ETFs hold hundreds of bonds and pay regular interest income; they are the standard way for individuals to own a diversified bond portfolio. Covered call ETFs advertise high monthly income, but that income is partly your own upside sold off, so total returns often trail the plain version of the same market. Leveraged and inverse ETFs reset daily and are built for single-day trading; held for weeks or months they can lose money even when their index goes the direction you predicted.

Canadian-listed vs US-listed

Canadians can buy ETFs listed in Toronto in Canadian dollars, or ETFs listed on US exchanges in US dollars. US-listed ETFs sometimes carry slightly lower fees, but buying them means converting currency, and conversion costs at typical brokerage rates can quietly eat several years of the fee savings. US-listed holdings can also create US estate tax paperwork for larger portfolios, and the withholding tax treatment of US dividends differs by account type.

One wrinkle matters for everyone: inside a TFSA, the 15% US withholding tax on US dividends applies to your US stock exposure whether you hold it through a Canadian-listed or a US-listed ETF; the TFSA is not recognized by the US treaty. In an RRSP, US-listed ETFs holding US stocks are exempt from the withholding while Canadian-listed equivalents are not. These are refinements, not deal-breakers: for most investors the simplicity of Canadian-listed ETFs outweighs the wrinkles.

Distributions and taxes

ETFs pay out the interest and dividends they collect as distributions, typically monthly or quarterly, which are taxable in the year received when the ETF is held in a taxable account. Selling units for more than you paid triggers capital gains tax in taxable accounts as well. One structural advantage over mutual funds: because of how ETF units are created and redeemed, ETFs tend to distribute far fewer taxable capital gains along the way, so more of the tax bill is deferred until you choose to sell. In registered accounts, none of this applies while the money stays inside.