Are You Guilty of These 3 Super-Common Investing Mistakes?

Picking good stocks is important. But there are plenty of other factors that can make or break your potential returns.

We all want to find the top stocks to invest in, and of course the companies you choose are the main ingredients in your success. But there are plenty of other factors to keep in mind — and they can make or break your potential returns.

Check your investing habits to be sure you’re not falling prey to these common investing mistakes.

worry concern

Image source: Getty Images

1. Investing money that you’ll need soon

One of the first mistakes investors make is using money that they might need for something else soon.

For example, let’s look at what happened to investors who bought Shopify a year ago when the price was around $1,400.

Canadian stocks

For a few months, the investment was gaining value. However, as you can see, it’s now down more than 60% from where it was this time last year.

So if you bought the stock a year ago and now need the money you invested to pay for something else, such as a down payment or a dream vacation, you’d have to sell your Shopify shares for less than half of what you paid for them.

To really invest for the long haul and commit to the stocks you’re buying for years, it’s crucial that you don’t need the cash you’re using to invest any time soon.

Pro tip: Let’s say you bought at the exact same time but are committed to owning Shopify for years. Now would be an excellent time to buy more shares to reduce your average cost.

2. Trying to time the markets

Another mistake investors make all the time is trying to “time the market.” It can be enticing to try to predict when stocks might drop or when an underperformer might finally rally. But more often than not, investors who try this get burned. (Just look at the example above again.)

It’s extremely difficult to tell where the stock market will go over the next day, week, month and — many times — even the course of a year.

This is why it’s crucial to invest for the long haul. As long as you focus on finding quality companies and stick with a long-term strategy, those businesses should eventually make money for you.

3. Buying stocks that you don’t understand

Finally, another highly common mistake investors make is buying companies that they don’t understand. This is often the result of hype and FOMO, or fear of missing out. However, when you buy any stock, it’s crucial you understand the business inside and out.

Without understanding how a business operates, what its major risks are, who its competitors are and so on, you won’t be able to decide if it’s truly a good investment for you.

Before investing in any stock, make sure you understand the business — and are actually interested in following its progress!

Fool contributor Daniel Da Costa has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Shopify.

More on Stocks for Beginners

Stocks for Beginners

The Canadian ETFs That Deserve Far More Attention Than They’re Getting

These three Canadian ETFs aren't just being overlooked, they're some of the best funds you can buy in this environment.

Read more »

dividend stocks are a good way to earn passive income
Stocks for Beginners

5 Stocks to Hold for the Next Decade

Take a closer look at these TSX stocks if you’re looking to allocate some investment capital to Canadian equities for…

Read more »

trading chart of brent crude oil prices
Energy Stocks

If Oil Hits $100, These 3 Canadian Stocks Could Surge

If oil really spikes to $100, these three Canadian energy names offer different kinds of torque: a major project ramp,…

Read more »

A close up color image of a small green plant sprouting out of a pile of Canadian dollar coins "loonies."
Stocks for Beginners

3 Canadian Stocks That Could Do Well if the Loonie Slides

A falling loonie can quietly boost Canadian stocks that earn lots of U.S. dollars or sell globally.

Read more »

Safety helmets and gloves hang from a rack on a mining site.
Stocks for Beginners

Miners Sold Off: 3 TSX Materials Stocks Worth a Second Look

Materials stocks have sold off together, but these three miners have company-specific progress that could surprise investors in 2026.

Read more »

a sign flashes global stock data
Dividend Stocks

2 Dividend Stocks to Buy and Hold Through Market Volatility

TMX and A&W offer an unusual volatility-proof combo: one can benefit from market turmoil, and the other leans on everyday…

Read more »

Warning sign with the text "Trade war" in front of container ship
Dividend Stocks

Tariff Headlines Are Back: 2 TSX Stocks Built for the Noise

As the TSX Index swings between inflation fears and defensive buying, these steadier businesses with local demand and essential goods…

Read more »

man crosses arms and hands to make stop sign
Dividend Stocks

3 TSX Stocks to Buy for a Set-It-and-Forget-It TFSA

A truly hands-off TFSA works best with boring, essential businesses that can grow and pay you through almost any market.

Read more »