Top 3 Australian Growth Stocks To Watch In October 2026

China’s latest GDP update shows 4.5% growth in the third quarter, with exports linked to AI and high tech doing much of the heavy lifting. That kind of external demand can spill over to Australian businesses that are financially sound and positioned for faster earnings growth. This article picks out 3 Australian high growth potential stocks from a quality focused screener and explains what sets each apart.

The three stocks highlighted here offer a compelling starting point if you want exposure to financially sound businesses with high earnings growth potential. However, if you want the strongest names, these 34 best high growth potential stocks are at the top of the list.

4DMedical (ASX:4DX)

4DMedical fits the Healthy high growth potential theme through its non invasive lung imaging platform, which is already embedded in real world screening programs and pulmonary research partnerships. This puts its technology in front of clinicians and drug developers, where future earnings expansion could be decided.

4DMedical is a medical technology business focused on non invasive lung function analysis software and scanners, generating about A$7 million from its Medical Technology R & D of Lung Function Analysis segment, and it carries a market value of roughly A$2.5b.

"Partnership with Philips promised a $10Million USD minimum order commitment contract over the next 2 years starting December 2025, (over 2026 and 2027) Philips has added 4DMedicals CT:VQ technology as an official product on their catalog in North America."

What happens to 4DMedical’s long term earnings profile depends heavily on how one unseen pressure around commercial adoption and pricing power plays out.

That pressure point is exactly where the full narrative for 4DMedical shows how Philips, pricing and capital needs could either accelerate the story or quietly stall it.

Catalyst Metals (ASX:CYL)

Catalyst Metals is a Perth based gold producer and explorer. Its Healthy high growth potential link comes from expanding and developing its Plutonic Main and Plutonic East projects. Almost all revenue, about A$629 million, comes from Western Australia, and the stock is valued around A$1.5b.

Catalyst Metals combines the Plutonic Gold Belt growth story with hard numbers, including A$631.94 million in sales and A$171.12 million in net income for the year to June 2026. It also has a forecast earnings lift of about 23.18% a year that still hinges on how one future cost pressure plays out.

That hinges on how costs really behave, which is why the 5 key rewards and 1 important major warning sign could help you spot where Catalyst Metals might surprise the market next.

Netwealth Group (ASX:NWL)

Netwealth Group runs a wealth platform that plugs directly into the Healthy high growth potential theme because its recurring fees rise as client superannuation, SMSF and managed account balances grow.

Netwealth Group operates a wealth platform that earns A$389.7 million from Platform Operations in Australia, mainly through superannuation, managed accounts and wrap services for advisers and private clients, and the stock is valued at about A$4.1b.

For this screener, Netwealth Group matters because it channels rising superannuation and investment balances into fee based platform income, which can support stronger earnings growth if assets under administration keep building over time.

"Netwealth's continued investment in best-in-class digital experience, platform functionality, and data analytics aligns with the ongoing digitisation of financial services and increasing regulatory focus on transparency, positioning the company to capture greater adviser and client net inflows, bolster revenue growth, and strengthen platform stickiness."

What really tests the long term growth story is how one unresolved pressure on profitability and funding costs eventually plays out.

That pressure could be the pivot point. This is why the full narrative for Netwealth Group maps how funding costs, flows and fees might be quietly decoupling under the surface.

Seeking Fresh Alternatives Before They Fly

Some of the fastest breakout opportunities get caught early, then momentum fades as the crowd arrives and pricing edges away from you. Scan these fresh ideas while it matters and consider them in a timely way.

• Hunt for resilient cash generators before everyone catches on by scanning the 5 high quality undervalued stocks that balance sturdy cash flows with disciplined balance sheets.
• Zero in on yield workhorses while they are still under the radar for now by reviewing the 4 dividend fortresses built for income focused portfolios.
• Track the quiet compounding stories that grind higher with fewer shocks and use the 6 resilient stocks with low risk scores to focus on sturdier risk profiles.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

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