Top 3 Australian Growth Stocks To Watch In October 2026

Global bond markets are being shaken by rising yields, which tightens the screws on weaker businesses but can shine a light on healthier Australian growth stories. Higher borrowing costs tend to punish fragile balance sheets. That makes financially sound companies with strong earnings potential feel scarce. This article walks through three stocks from a high quality Australian growth screener that aims to highlight such resilient opportunities.

The stocks covered below are just a small sample, and the full screen surfaced 90 more Australian companies with equally compelling growth and balance sheet stories that are not included here.

If you want to identify candidates that fit your own risk profile and time horizon, head straight into the Healthy high growth potential screener to filter, analyze, and focus on ideas with healthy high growth potential that you find most compelling.

4DMedical (ASX:4DX)

4DMedical sits in this Healthy high growth potential group because its non invasive lung imaging software and scanners are directly tied to respiratory diagnostics and drug development, with the business currently generating about A$7 million from lung function analysis and carrying a market value of about A$2.6b.

4DMedical’s lung imaging platform matters here because it goes after a very specific problem, getting clearer, safer insight into respiratory disease. That focus is what could turn high forecast growth into something more concrete for this screener.

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.

The real swing factor for 4DMedical now is how one untested pressure on scaling plays out as hospitals move from pilots to routine use.

That scaling question is exactly what the full narrative for 4DMedical unpacks, including how Philips momentum could accelerate or stall adoption from here.

Netwealth Group (ASX:NWL)

Netwealth Group runs a platform-based wealth management business focused on superannuation and investor-directed portfolios, where scalable fee revenue linked to funds under administration aligns it directly with the Healthy high growth potential theme. It generated about A$390 million from platform operations, all in Australia, and has a market value near A$4.1b.

Netwealth Group taps into that growth theme by pairing a scalable, fee-based platform with rising adviser flows.

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, which may help the company attract adviser and client net inflows, support revenue, and increase platform stickiness.

One consideration is how pressure on margins and cash earnings may play out as that platform continues to scale.

That margin pressure question is where the full narrative for Netwealth Group really matters. It lays out how Netwealth Group’s fee model could be accelerating strengths or quietly masking emerging risks.

Megaport (ASX:MP1)

Megaport runs a Software Defined Network that lets enterprises spin up data center interconnects and cloud links on demand, a direct fit with the Healthy high growth potential focus on scalable earnings. The firm generated about A$44 million in Europe, A$70 million in Asia Pacific, and A$198 million in the Americas, and carries a market value near A$4.8b.

For investors tracking this Healthy high growth potential group, Megaport matters because its on demand cloud connectivity model links directly to earnings expectations as more workloads move into data centers and hyperscale platforms.

Skyrocketing enterprise bandwidth, surging AI/cloud adoption, and the rapid proliferation of data centers are combining to create secular tailwinds. Megaport's automation, global reach, and software-defined architecture position it as a potential connectivity backbone for AI factories, data-native SaaS, and hybrid enterprise networks.

What really shifts the equation is how one unresolved constraint on funding that expansion shapes the balance between future growth and shareholder returns.

That funding tension is exactly what the full narrative for Megaport unpacks, showing where Megaport’s expansion could be accelerating value or quietly masking fragile economics.

Seeking Fresh Alternatives Before They Fly

Fresh opportunities do not sit still. Breakout ideas gain momentum, quiet winners get caught, and early entry points start dropping from view. Review these under the radar lists and consider whether they fit your strategy.

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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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