If You Left $10,000 in Cash for 10 Years, You Could Have Missed $11,600 in Growth

Cash feels safe, but leaving long-term money parked for years can quietly cost you a fortune in missed compounding.

Key Points
  • Cash can lose purchasing power over time, so long-term money often needs investment growth to keep up with inflation.
  • Compounding matters because returns build on past returns, and waiting breaks that chain.
  • Dollarama is a quality long-term grower, but its premium valuation means you should buy carefully.

Cash feels wonderfully responsible. The trouble starts when “I’m waiting for a better opportunity” quietly turns into years.

Consider $10,000 earning nothing for a decade. It would still be $10,000 at the end, which sounds harmless enough. Yet if that money instead earned an average 8% annually, it would grow to about $21,589. That’s roughly $11,600 in potential growth left behind.

That 8% is an illustration, not a promised stock-market return. Actual returns bounce around considerably. The point is what happens when time and compound growth get to work together.

concept of growth

Source: Getty Images

The job of cash

Investors absolutely should keep some cash available. An emergency fund, upcoming house purchase or money needed within the next few years doesn’t belong riding the stock market like a roller-coaster without a seatbelt.

Long-term money is different. The Bank of Canada targets inflation of 2% over time. Even at exactly that rate, prices would rise roughly 22% over a decade. So, money sitting idle isn’t really standing still. The purchasing power is gradually slipping backwards. Now look at what compounding can potentially do with the same $10,000.

YEARCASH AT 0%INVESTMENT AT 8%
Today$10,000$10,000
5$10,000$14,693
10$10,000$21,589

The interesting part isn’t merely earning 8% in year one. It’s earning returns on previous returns in the years that follow. Waiting interrupts that process, and time is one ingredient investors can’t buy back later. So, what would I actually consider owning with money meant to stay invested for a decade?

DOL

Dollarama (TSX: DOL) is hardly a hidden Canadian stock. Yet it’s a useful example of the sort of company I’d rather own for the long haul than leave money indefinitely waiting for the “perfect” market.

Dollarama stock operates its familiar discount stores across Canada while expanding internationally through The Reject Shop in Australia and its investments in Dollarcity, including expansion into Mexico. It earns money from something wonderfully uncomplicated: selling inexpensive everyday products at enormous scale.

That simple model continues to produce some very simple growth. First-quarter fiscal 2027 sales jumped 21.4% year over year, helped by international expansion. More importantly, comparable-store sales in its core Canadian business grew 5.6%, with transactions up 3.5%.

Dollarama stock also repurchased almost two million shares for $339.1 million during the quarter. Reducing the share count means future earnings are spread across fewer shares, another way a profitable company can compound value for long-term owners. For Canadians still getting comfortable with buying stocks in Canada, that combination of a straightforward business and repeatable growth is appealing.

Considerations

Dollarama stock currently trades around $189 per share and roughly 39 times earnings. Nobody is going to mistake that for the clearance aisle. Australia is also pressuring margins while management converts stores and introduces Dollarama stock’s sourcing model. First-quarter earnings before interest, taxes, depreciation, and amortization (EBITDA) margin slipped to 31.6% from 32.6% a year earlier. Paying a premium valuation means investors need that expansion to work.

That’s why I wouldn’t argue investors should toss every spare dollar into Dollarama tomorrow. I would argue against allowing long-term money to sit permanently in cash because investing suddenly feels uncomfortable. Ten years gives good businesses an enormous amount of time to grow earnings, repurchase shares and expand.

Bottom line

The market will undoubtedly hand investors some ugly years along the way. Missing all of them means missing the compounding years too. In the case of Dollarama stock, that could mean missing out on even more future growth.

Fool contributor Amy Legate-Wolfe has no position in any of the stocks mentioned. The Motley Fool recommends Dollarama. The Motley Fool has a disclosure policy.

More on Dividend Stocks

hand stacks coins
Dividend Stocks

3 Superior Canadian Dividend Stocks for Passive Income

Enbridge (TSX:ENB) and other dividend payers that look like superior picks this November.

Read more »

person with spyglass looks at ocean horizon
Dividend Stocks

Canada and Europe Want New Energy and Trade Corridors: This Global TSX Stock Could Help Build Them

WSP can earn from the design and engineering behind new connections, with a backlog that predates the summit.

Read more »

A solar cell panel generates power in a country mountain landscape.
Dividend Stocks

A Deeper Canada-EU Alliance Will Need Private Capital: This Canadian Asset Manager Could Follow the Money

Brookfield Asset Management can earn from managing the capital behind investments, with its existing fundraising providing the stronger evidence.

Read more »

House models and one with REIT real estate investment trust.
Dividend Stocks

An 8.3% Monthly Dividend Stock – Earn $100 a Month on $14,520 Invested

BTB REIT's attractive 8.3% dividend yield and ongoing industrial property investments could help investors earn solid monthly passive income from…

Read more »

Group of people network together with connected devices
Dividend Stocks

Canada and Europe Are Building a Cybersecurity Alliance: This Canadian Software Stock Could Get a Second Look

OpenText sells tools for protecting information, giving it a practical link to closer digital cooperation without an assumed government award.

Read more »

worker carries stack of pizza boxes for delivery
Dividend Stocks

High Yield or Yield Trap? How to Think About Pizza Pizza Stock in Late 2026

Pizza Pizza pays a whopping 7.7% dividend yield. Is this stock a good buy for its big income or is…

Read more »

dairy cows graze on grass
Dividend Stocks

MTY Food Group Just Raised Its Dividend – Is It Too Late to Buy?

MTY is still working on a turnaround, but it pays well to wait with a 6.1% dividend. Investors might consider…

Read more »

holding coins in hand for the future
Dividend Stocks

2 Dividend Stocks to Hold for the Next 20 Years

These Canadian stocks have consistently paid regular dividends and increase their distributions year after year.

Read more »