Disclaimer: This article is for educational and informational purposes only and does not constitute financial advice. TeenLearner is not a licensed financial advisor. Please consult a qualified financial professional before making any investment decisions.

Stock Market Basics for High School Students

Play with the compound interest calculator to see what long-term growth actually looks like.

You have money sitting in a savings account earning almost nothing while the stock market has averaged around 10 percent per year over the long term. If that gap bothers you, you are already thinking like an investor. This guide covers what the stock market actually is, whether to buy individual stocks or ETFs, how Canadian teens under 18 can legally start investing, why the day you turn 18 matters more than any investment you will ever pick, and what to do if your parents are not on board.

What Is the Stock Market and How Does It Actually Work?

The stock market is a system where investors buy and sell small ownership stakes in publicly traded companies. When you own a share of a company, you own a tiny fraction of that business. If the company grows and becomes more valuable, the price of your share goes up. If it struggles, the price goes down.

Stock prices move every trading day based on what buyers and sellers agree a share is worth in that moment. Over the short term, prices bounce around based on news, earnings reports, and general market mood. Over the long term, prices tend to follow the underlying performance of the business. This is why long-term investing works and short-term trading is extremely difficult to get right.

The two major stock exchanges in Canada are the Toronto Stock Exchange (TSX) and the TSX Venture Exchange. In the US, the main exchanges are the New York Stock Exchange (NYSE) and the Nasdaq. As a Canadian investor, you can buy stocks listed on all of these exchanges through most major brokerages.

Individual Stocks vs. ETFs: What Should a Teen Buy First?

For many teens starting out, financial educators commonly point to broad index ETFs as a beginning point. But the pull toward individual stocks is real and worth addressing directly.

An exchange-traded fund (ETF) is a single investment that holds dozens, hundreds, or even thousands of stocks at once. When you buy one unit of a broad index ETF like the S&P 500, you own a tiny piece of 500 of America’s largest companies. If one company collapses, the other 499 cushion the loss. This built-in spread is called diversification, and it is the most important concept in investing. The average ETF charges about 0.20 percent per year in fees, and many index ETFs charge even less.

Individual stocks work differently. When you buy shares of a single company, you are betting that this specific business will outperform the broader market. Most professional fund managers, who do this full time with research teams and millions in resources, fail to beat the index consistently over ten or more years. That is not a reason to never touch individual stocks. It is a reason to be honest about what you are doing when you buy them.

Many financial educators suggest that beginners consider putting the larger portion of a portfolio into broad index ETFs, with any individual company exposure kept as a smaller portion — and only in companies the investor genuinely follows and understands. Buying a stock in a company you actually use and pay attention to is how many successful investors started. Just know that the individual stock portion of your portfolio is where you take on more risk in exchange for the chance to outperform.

Broad all-equity ETFs from major Canadian providers hold thousands of companies across Canada, the US, and international markets in a single fund. Many are available commission-free through Canadian brokerages, making them accessible even for small starting amounts.

How Can Teenagers Under 18 Legally Invest in Canada?

Teens under 18 in Canada cannot open a brokerage account in their own name. The age of majority is 18 in most provinces and 19 in British Columbia, New Brunswick, Newfoundland, Nova Scotia, and the territories. Before you reach that age, a parent or guardian can open an informal trust account on your behalf.

An informal trust account (often called an ITF account, meaning “in trust for”) is a brokerage account held in a parent’s name, but designated as yours. The parent makes the legal decisions on the account, but the money is understood to belong to you. When you reach the age of majority, the account can be transferred into your name. Most major Canadian brokerages offer these accounts, including Questrade and TD Direct Investing. Wealthsimple does not currently offer ITF accounts, so if you want to use Wealthsimple, you will need to wait until you are 18 or 19.

One tax note worth keeping in mind. If the money in the ITF account comes from your own earnings or gifts, any income earned is taxable to you. Since most teens earn well below the federal basic personal amount ($16,129 in 2026), the tax owing is typically zero. If the money was contributed by a parent, different attribution rules may apply.

How to Convince Your Parents to Help You Open an Investment Account

Many teens want to invest but cannot because a parent is not on board. This is one of the most common frustrations in teen investing forums, and it has a practical solution.

The most effective approach is to show up prepared. Parents who hesitate about teen investing are usually worried about three things. They fear losing the money, they do not fully understand how it works, or they think it is too complicated to set up. You can address all three before the conversation starts.

Before you ask, do the following. Research the account type you want (an ITF account at Questrade or TD Direct Investing is a practical starting point). Write down what you plan to invest in and why. Show the compound growth numbers using a specific example from your own savings. Come with a number you are willing to invest as a starting amount, something small enough that losing it would not be a disaster. Then ask for a ten-minute conversation, not a big decision.

Most parents respond well when a teen comes in with research rather than just enthusiasm. The fact that you have done the work already removes most of the friction. If the first conversation does not go well, give it a few weeks and try again with more specific information about what the account setup actually involves.

If getting a brokerage account is not possible right now, you can still build real investing knowledge by paper trading, which means tracking a pretend portfolio with real stock prices but no actual money. Most major brokerages offer paper trading simulators, and it teaches you to think like an investor before real money is on the line.

What Is a TFSA and Why You Should Open One the Day You Turn 18

A Tax-Free Savings Account (TFSA) is the most powerful investing tool available to Canadians, and most people do not open one until years after they become eligible. If you are a teenager reading this, the most important piece of financial advice on this entire page is to open a TFSA the day you turn 18.

Here is why the timing matters. The CRA adds $7,000 of TFSA contribution room to your personal limit on January 1 of every year starting from when you turn 18. This room accumulates whether or not you have opened an account. But any growth inside the TFSA is completely tax-free. If you invest $7,000 at 18 and it grows to $70,000 over twenty years, you owe zero tax on that $63,000 gain when you withdraw it.

Every year you leave the TFSA empty is a year of tax-free growth you lose permanently. You cannot go back and recover it. You cannot double-contribute next year to make up for not contributing this year (beyond the standard carryforward room). Open the account, even if you only put in $500 to start.

Inside a TFSA, you can hold stocks, ETFs, GICs, bonds, and cash. The account itself is just a tax-sheltered container. What you put inside it is up to you. For many beginners, financial educators often describe a broad index ETF inside a TFSA as a simple starting point.

How Much Money Do You Actually Need to Start Investing as a Teenager?

You can start investing in Canada with as little as $1 through fractional shares. The practical minimum for most teens is whatever you have saved from a part-time job or birthday money, with $100 to $500 being a common and workable starting point.

The amount matters less than starting. Here is a concrete example using a 7 percent average annual return, which is a conservative estimate for a diversified equity portfolio over the long term. A teen who invests $100 per month starting at 16 will have roughly $263,000 by age 50. The same person starting at 26 with the same $100 per month will have roughly $121,000 by age 50. That $120,000 gap comes entirely from starting ten years earlier, not from investing more.

You do not need to invest large amounts to benefit from compound growth. You need to start early and be consistent. Even $25 to $50 per month invested during high school builds a habit and a foundation that will be worth more than any lump sum you try to invest in your late twenties. For more on building the savings habit before you invest, the budgeting guide for teenagers is the right place to start.

Is Cryptocurrency the Same as Investing in Stocks?

No. Cryptocurrency and stocks are fundamentally different, and treating them as interchangeable is one of the most common mistakes teens make when they start thinking about investing.

When you buy a stock, you are buying partial ownership of a real business that earns revenue, has employees, and produces something. The value of that stock is ultimately tied to the performance of that underlying business. A company like a bank, a railway, or a technology firm generates income, and that income is what supports the stock’s long-term value.

Cryptocurrency has no underlying business or cash flow. Its price is determined entirely by what other buyers are willing to pay for it at any given moment. That makes it far more speculative than stocks. Crypto can gain 300 percent in a year and lose 70 percent the year after. The CRA treats cryptocurrency gains as taxable income, the same as capital gains on stocks.

This does not mean crypto has no place in anyone’s portfolio. It means it belongs in a different mental category than stocks. If you want exposure to crypto, treat it like a high-risk, high-speculation position, not as a substitute for your core investment portfolio. Most financial advice for beginners suggests keeping speculative positions under 5 to 10 percent of a portfolio, if at all.

What Happens to Your Money If the Stock Market Crashes?

The stock market crashes. It always has and it always will. Knowing this ahead of time is one of the most important things you can internalize before you put real money in.

The S&P 500 has dropped more than 20 percent multiple times in the last thirty years, including during the dot-com crash of 2000, the financial crisis of 2008, and the COVID crash of 2020. In every single case, the market eventually recovered and went on to reach new highs. An investor who put $10,000 into an S&P 500 index fund in January 2000, right before the dot-com crash, would have seen that investment drop significantly over the next three years. That same investment, held without selling, was worth over $40,000 by 2020.

As a teenager, you have the single biggest advantage in investing. That advantage is time. A market crash when you are 17 is not a disaster. It is a sale. The investors who lose money in crashes are the ones who panic and sell when the market drops. The ones who hold their diversified index funds through the drop and continue contributing come out ahead every time. Volatility is the price you pay for long-term returns. Understanding that before it happens is what lets you hold when everyone else is selling.

The one important caveat is money you need in the short term. Do not invest money you will need in the next one to three years. Stock market investments can be down significantly on any given day, month, or year. Money for tuition, a car, or an emergency fund belongs in a high-interest savings account or GIC, not in the stock market. Once you have that short-term money separated, everything you invest for the long term can ride out any temporary drop. For a breakdown of how to decide how much to save versus invest, the guide on how much a teenager should save is a useful next step.

The stock market is one of the few places where starting early matters more than having a lot of money. You do not need to understand every financial term. You do not need to pick the right stocks. You need an index ETF, a TFSA the day you turn 18, and the discipline to keep contributing even when the market drops. Those three things, done consistently, put you years ahead of most adults who started the same conversation in their thirties.

Frequently Asked Questions

Can a teenager under 18 invest in the stock market in Canada?

Yes, through an informal trust (ITF) account opened by a parent or guardian at a brokerage. The account is held in the parent’s name but designated as yours. Most major Canadian brokerages, including Questrade and TD Direct Investing, offer ITF accounts. When you reach the age of majority (18 in most provinces, 19 in some), the account transfers to your name.

What is the best investment for a Canadian teenager with $500?

Broad index ETFs that hold thousands of companies across Canada, the US, and international markets in a single fund are commonly cited by financial educators as a starting point for new investors. They typically have very low fees and are available through major Canadian brokerages. This article is for educational purposes only — please consult a financial advisor before making investment decisions.

What is a TFSA and can teenagers open one in Canada?

A Tax-Free Savings Account (TFSA) is an investing account where all growth is tax-free. The annual contribution limit in 2026 is $7,000, and room accumulates starting from the year you turn 18. You cannot open or contribute to a TFSA until you are 18, but your room accumulates automatically. The single most important thing you can do is open a TFSA the day you turn 18 and start investing immediately, even with a small amount.

Should a teenager buy individual stocks or ETFs?

A broad index ETF gives you instant diversification across hundreds or thousands of companies, very low fees, and returns that match the overall market, which you may consider as your first investment. If you want to invest in individual companies you follow and understand, keep that portion small (10 to 20 percent of your total) and treat it as a learning exercise, recognizing the risks that come with it. Most professional investors do not beat the index over the long term, so the honest advice is to make ETFs the foundation and treat individual stocks as a secondary position.

Last updated: May 2026

Robert Puharich is the founder of TeenLearner, where he helps teens build real-world skills in money, AI, and life. With over 20 years in education and a Master of Education (M.Ed.) from UBC, he created TeenLearner to teach practical skills such as budgeting, career readiness, decision-making, and the wise use of technology. Robert is also a published author and business founder.