High-growth ASX shares can deliver the strongest returns over time because of how powerful a financial force compounding is.
As the great scientist Albert Einstein once said:
Compound interest is the eighth wonder of the world. He who understands it, earns it, he who doesn't, pays it.
The market can underestimate how much a rapidly growing business can grow over the long term. I think the below two high-growth ASX shares are worth buying for the years ahead.
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Temple & Webster Group Ltd (ASX: TPW)
Temple & Webster is a leading online retailer of furniture and homewares in Australia. It sells hundreds of thousands of products, with a large majority of those products shipped by suppliers. This allows the company to operate with a capital-light model and sell a much wider range of items.
After initial excitement following the company's FY25 result, the Temple & Webster share price has fallen around 20% from 14 August 2025, as the below chart shows.
The report included lots of things I wanted to see, including strong growth.
Revenue grew 20.7% to $600.7 million, earnings before interest and tax (EBIT) jumped 301.4% to $10.4 million, and operating cash flow increased 89.6% to $45.9 million. The home improvement segment saw revenue rise 42.5% to $42 million.
As an online business, it's able to take advantage of new tools. The company is utilising technology (including AI) to improve the customer experience, boost conversion, lower costs, and improve efficiencies across the business.
In FY25, the operating profit (EBITDA) margin achieved was 3.1%. This is expected by the company to be between 3% to 5% in FY26 and reach at least 15% in the long term. This, combined with its $1 billion revenue goal in the medium term, suggests significant profit growth in the longer term for the high-growth ASX share, in my opinion.
VanEck MSCI International Small Cos Quality ETF (ASX: QSML)
This is one of the exchange-traded funds (ETFs) I'm most excited about because it's focused on faster-growing, smaller international businesses.
It has 150 high-quality small companies in the portfolio that are based on three key fundamentals – a high return on equity (ROE), earnings stability, and low financial leverage.
In other words, they earn a high level of profit on retained shareholder money, profits don't typically go down, and debt levels are low. This is a powerful combination and ensures only the best small businesses are invested in the QSML ETF.
Past performance is not a guarantee of future performance, but the QSML ETF has returned an average of almost 19% per year in the last three years. I think this fund and the underlying businesses have very compelling futures.
