The market capitalisation of WA-listed companies featured in the Deloitte WA Index rose a further 5 per cent in September to $144.6 billion, almost doubling in value during the past eight months.
Deloitte WA managing partner Keith Jones said the powerful rebound was reflective of sustained demand for resources, stronger commodity prices and growing market confidence.
"The market rebound has been underpinned by demand from China for resources and investment opportunities, with many companies capitalising on the improved sentiment by raising new capital to advance projects."