Investing 101: Healthy Diversification vs. Unhealthy Diversification

Diversification is a lot more than investing in multiple top stocks to buy. Here’s your secret to healthy diversification. 

| More on:

You’re reading a free article with opinions that may differ from The Motley Fool’s premium investing services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More

Many young traders share screenshots of their portfolios on social media. Those portfolios aren’t diversified. Some have either put all their money in BlackBerry or have a 40:60 split in Bitcoin and Dogecoin. That kind of portfolio is the death knell for your money. It is on such trades that hedge funds feed. Many retail investors exit the stock market, because of the losses they experience from unhealthy diversification. 

What is unhealthy diversification?

There is a notion that having too many different stocks means your portfolio is overdiversified. The most common mistake investors make is that they search for the top stocks. Then they buy them without understanding those stocks. And when the stock falls, they panic and sell the dip. Great investors like Warren Buffett understand the business and its opportunities and challenges before investing in a stock. 

The second common mistake in diversification is investors buy only into one sector or one trend. This is called sector bias. For instance, John loves dividends and is bullish on energy. So, his portfolio has all types of energy stocks like EnbridgeNorthland Power, and Suncor Energy. This portfolio will give good returns during a recovery. But this very portfolio will fail in an energy crisis. 

Then what is healthy diversification?

Healthy diversification makes your portfolio robust. Such a portfolio outperforms the market during the upside and also mitigates the risk of a downside. Now, the question is, how do you achieve healthy diversification? It depends on four factors: 

  • How much time you can stay invested.
  • The money you can invest.
  • The money you want to earn (financial goal).
  • How much risk you can take.

You should consider your age, debt, expenses, number of dependents, dreams, and other things. You can have more than one goal: a mix of a short-, medium-, and long-term investment horizon. Every portfolio must have four types of stocks:

  • Dividend stocks like Enbridge can secure your passive income. 
  • Growth stocks like Lightspeed POS can help you outperform the market and get short-term gains.
  • Resilient stocks like Descartes Systems can give stable growth. 
  • Speculative stocks/recovery stocks like Hive Blockchain Technologies are highly volatile. They can double your money during small bouts of growth. Hence, it is imperative to book profits when you still can. 

Depending on your risk profile, you decide how much money to allocate in particular stocks. Even if you are a risk taker, allocate more than 50% of your portfolio in dividends and resilient stocks and not more than 10% in speculative stocks. 

Two stocks for a well-diversified portfolio 

One good dividend stock is BCE (TSX:BCE)(NYSE:BCE). The company has Canada’s largest telecom infrastructure that earns it regular cash flow through subscriptions. It is investing in 5G infrastructure and increasing internet penetration. A new technology commands a higher price. Moreover, 5G will connect many more devices to the internet, driving subscription volumes. This shows BCE has the potential to continue paying incremental dividends in the 2030 decade. 

BCE has a 5.7% dividend yield and has been growing dividends at an average annual rate of 6.4%. The stock also surged 11% year to date and has the potential to give over 100% in capital appreciation in 10 years. 

One resilient stock is Constellation Software (TSX:CSU). It operates as a private equity firm. It acquires vertical-specific software companies that cater to the niche market and enjoys stable cash flows. The mission-critical nature of these companies makes them sticky. By consolidating them into its umbrella, Constellation facilitates these companies with the management expertise and resources they need to accelerate their growth. Some acquisitions might succeed, and some might fail. But overall, they bring steady growth for Constellation. The stock has surged 24.5% in the last 12 months, which is in line with the five-year average return of 23%. 

Should you invest $1,000 in Columbia Care right now?

Before you buy stock in Columbia Care, consider this:

The Motley Fool Stock Advisor Canada analyst team just identified what they believe are the Top Stocks for 2025 and Beyond for investors to buy now… and Columbia Care wasn’t one of them. The Top Stocks that made the cut could potentially produce monster returns in the coming years.

Consider MercadoLibre, which we first recommended on January 8, 2014 ... if you invested $1,000 in the “eBay of Latin America” at the time of our recommendation, you’d have $20,697.16!*

Stock Advisor Canada provides investors with an easy-to-follow blueprint for success, including guidance on building a portfolio, regular updates from analysts, and two new stock picks each month – one from Canada and one from the U.S. The Stock Advisor Canada service has outperformed the return of S&P/TSX Composite Index by 29 percentage points since 2013*.

See the Top Stocks * Returns as of 3/20/25

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium service or advisor. We’re Motley! Questioning an investing thesis — even one of our own — helps us all think critically about investing and make decisions that help us become smarter, happier, and richer, so we sometimes publish articles that may not be in line with recommendations, rankings or other content.

Fool contributor Puja Tayal has no position in any of the stocks mentioned. The Motley Fool owns shares of and recommends Constellation Software, Enbridge, and Lightspeed POS Inc. The Motley Fool recommends BlackBerry.

Confidently Navigate Market Volatility: Claim Your Free Report!

Feeling uneasy about the ups and downs of the stock market lately? You’re not alone. At The Motley Fool Canada, we get it — and we’re here to help. We’ve crafted an essential guide designed to help you through these uncertain times: "5-Step Checklist: How to Prepare Your Portfolio for Volatility."

Don't miss out on this opportunity for peace of mind. Just click below to learn how to receive your complimentary report today!

Get Our Free Report Today

More on Dividend Stocks

investor looks at volatility chart
Dividend Stocks

I’m Adding This 12% Dividend Stock for a Recession-Resistant Portfolio

Despite boasting such a high dividend yield, this 12% dividend yield stock might be an excellent pick to build your…

Read more »

Make a choice, path to success, sign
Dividend Stocks

1 Undervalued TSX Stock Down 51% to Buy and Hold

This TSX stock plunged, but don't count it out, especially at these prices.

Read more »

dividends can compound over time
Dividend Stocks

How I’d Invest $50,000 of TFSA Cash in 2025

If you have $50,000 to invest in a TFSA, here's how to get started.

Read more »

analyze data
Dividend Stocks

Why I’d Focus on Canadian Value Stocks for My Long-Term Portfolio

Canadian value stocks often provide income and growth that makes them great for long-term investing.

Read more »

woman looks at iPhone
Dividend Stocks

Investing $7,000 in Your TFSA? Consider These 2 Canadian ETFs for Retirement Planning

These two Canadian ETFs can be excellent long-term investments to add to your TFSA if you have contribution room available.

Read more »

ways to boost income
Dividend Stocks

Where I’d Invest $5,000 in Canadian Value Stocks During This Market Pullback

For patient, long-term investors, here are three discounted TSX stocks to have on your watch list right now.

Read more »

calculate and analyze stock
Dividend Stocks

Here’s How Many Shares of Brookfield Renewable You Should Own to Get $500 in Quarterly Dividends

If you want some dividends on deck, then consider this energy producer, which could provide that and more.

Read more »

TFSA (Tax free savings account) acronym on wooden cubes on the background of stacks of coins
Dividend Stocks

Here’s Exactly How $15,000 in a TFSA Could Grow Into $215,000

If you're looking to grow your $15,000 investment into $200,000, here's exactly how to get it done.

Read more »