It is arguably one of the most powerful concepts in investing: time in the market.
Even relatively modest sums can grow into serious wealth if they are given long enough to compound.
Let's take a look at what $10,000 in ASX shares could look like two decades from now.
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A $10,000 investment in ASX shares
Firstly, we are going to base our calculations on a 10% average annual return. This is far from guaranteed, but largely in line with the long-run performance of ASX shares, so it is certainly achievable.
If you invested $10,000 today and left it untouched for 20 years, you would see your balance grow to a little over $67,000.
That's without adding an extra dollar and is the magic of compounding at work, where your gains earn returns of their own in future years.
Making regular contributions
While $67,000 would be a nice little nest egg, you don't have to settle for that. What if you boosted that initial $10,000 with consistent monthly top ups?
Well, if you added a further $300 every month for 20 years, while achieving the same 10% annual return, you would grow your portfolio to a sizeable $285,000.
This is where compounding becomes truly powerful. By making regular contributions, you not only grow your portfolio balance but also give more capital the chance to compound year after year.
Focus on quality
Of course, achieving a long-term 10% average annual return (or better) means owning high-quality businesses. But which ASX shares tick this box?
ResMed Inc. (ASX: RMD) could be one. It has grown into a global sleep apnoea leader by continually innovating its medical devices. Temple & Webster Group Ltd (ASX: TPW) has carved out a niche in online furniture retailing, riding the shift from traditional bricks-and-mortar to digital platforms. And TechnologyOne Ltd (ASX: TNE), has positioned itself for strong growth thanks to its successful shift to a SaaS business model and its sticky revenues.
Foolish takeaway
Whether you invest $10,000 once or add to it regularly, the lesson is clear: time and compounding will do the hard work for you.
With quality ASX shares and the discipline to hold for decades, even small beginnings can turn into life-changing wealth. If you are prepared to stay the course, your portfolio in 20 years could be far larger than you ever imagined.
