Deloitte Western Australia Index 2026

This year, the market capitalisation of Western Australian entities listed in the WA Index closed at A$494.3 billion, a huge 36% increase from 2025. By comparison, the ASX All Ordinaries increased by 2.4%. A truly remarkable result. 

Several factors contributed to this growth. Global macroeconomic conditions pushed gold to record highs, accounting for a significant share of the overall increase. Once the conflict in the Middle East started towards the end of the March quarter, gold began to pull back, but energy stocks in both oil and gas and battery minerals picked up the pace and recorded significant gains. The sector also attracted new money, with significant capital raisings by existing companies and a spate of reasonably sized IPOs also making their mark. 

Deloitte WA Index High Growth Award Winners 

As is customary for our Diggers & Dealers Special Edition, we recognise the top performing companies in the Deloitte WA Index delivering outstanding market capitalisation growth over the year. Congratulations to all. 

The Top 3 movers in the WA Index Top 20 in terms of market capitalisation growth for the year ended 30 June 2026 

• PLS Group Limited 
• Liontown Limited 
• Mineral Resources Limited 

The Top 3 movers in the WA Index Top 100 in terms of market capitalisation growth for the year ended 30 June 2026 

• Forrestania Resources Limited 
• Solstice Minerals Limited
• Lindian Resources Limited

Feature articles:

In this special edition, we have delved into the topic of What Does Australia’s Mining Sector Need to Consider to Protect Its Future? Australian mining has always found a way to reinvent itself. What makes this moment different is the scale and speed of what is changing, simultaneously and permanently. 

Decarbonisation, digitalisation, workforce transformation, commodity volatility, and geopolitical realignment are no longer separate conversations happening in separate boardrooms. They are converging at once, and the response they demand is not a programme or an initiative. It is a fundamental rethink of how mining Company operate, invest, and compete.

At this year’s Diggers & Dealers Mining Forum, we are helping mining leaders focus on what actually builds long-term value:

• The Opportunity: The companies already pulling ahead share a pattern. They invested in operational discipline, digital capability, and sustainable energy well before the pressure arrived and when commodity prices moved, those decisions compounded into margin, cash flow, and market capitalisation. The results were not accidental.
• The Cost of Standing Still: In a structural shift, timing matters. And the winners of the next decade will not be the biggest operators. They will be the most adaptable ones.

The goal is not to overwhelm the company’s people it is to make the path forward feel navigable.
That is the conversation we are here to start.

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