Firmus Technologies has scrapped what was set to be Australia's biggest company listing in decades, after investor demand for its much-hyped AI datacentre business failed to materialise, The Guardian reported on Friday. The float would have been the largest on the Australian Securities Exchange since Telstra's listing in 1997.
A Firmus spokesperson said the board decided that proceeding with the offer was no longer in the best interests of the company and its shareholders. "Firmus will now pursue capital from the private markets and consider alternative public and private market options," the spokesperson said on Friday morning, adding that the company would provide further information to shareholders as those options progress. For more context on this story, see our ongoing AI industry coverage.
A Float That Unravelled Midweek
The polished pitch started to come apart in the middle of the week, according to The Guardian, after it became clear the company's bankers had vastly overestimated demand in their bid to raise $7 billion from investors ahead of a planned ASX listing on October 23. That prompted discussions about a heavy reduction in the proposed $11-a-share offer, according to one investment manager briefed on the matter who spoke to the publication.
At an anticipated valuation of $44 billion, Firmus was pitched as a cornerstone of Australia's AI infrastructure ambitions. Instead, the listing's collapse has become the most visible test yet of how much appetite public investors actually have for early-stage AI infrastructure companies — and the early answer is: less than their bankers assumed.
Big-Name Backers, Two Small Sites
Firmus was backed by a genuinely blue-chip roster: chipmaker Nvidia along with Wall Street firms Blackstone, Jane Street and Coatue, with five brokers engaged to sell the deal. But the company faced mounting skepticism over its huge valuation and forecast earnings for a business that, The Guardian notes, is in its startup phase with just two small operational sites.
The company's plan was to build liquid-cooled "AI factories" in Australia and across Asia — high-density facilities designed for the punishing power and cooling demands of modern AI training and inference. Without the public listing, Firmus will need to raise money from private investors to fund those plans.
The Guardian also reported growing concern that early Firmus investors were hoping to use retail investors buying into the float as their exit strategy, leaving small shareholders exposed if excitement about AI infrastructure cooled. The collapse of the deal will also greatly reduce the anticipated paper wealth of the company's founders — Oliver Curtis, his cousin Tim Rosenfield, and Curtis's former brother-in-law Jonathan Levee.
The Fallout Spreads Beyond Firmus
The damage has already rippled through the Australian market. Shares in Firmus investor Maas Group plunged more than 20 percent on Thursday, according to The Guardian.
In a further blow, veteran datacentre firm CDC this week ended what was touted as a $73 billion partnership with Firmus, known as Project Southgate, which had been aimed at building sovereign, renewable-powered AI infrastructure in Australia and claimed Nvidia as its first customer.
Appearing Friday at the federal parliament's joint standing committee on AI, CDC's chief strategy officer Dr Jack Dan said the arrangements began when Firmus's focus was "a lot more on Australia and creating sovereign AI capability in Australia." Asked about the split, he said CDC has "a very clear business model and a very clear mission for our company," and that "when things start diverging significantly from that, we continue to follow our core mission." He added that Firmus took "a very different approach to developing datacentres" than CDC, which is focused on critical infrastructure with essentially 100 percent availability.
A Warning Signal for AI Infrastructure Valuations
The Firmus collapse lands at a sensitive moment for AI markets. Investors worldwide have been debating whether the enormous capital commitments flowing into datacentres, chips and power infrastructure reflect durable demand or a speculative cycle. A deal backed by Nvidia, Blackstone, Jane Street and Coatue — names that anchor the AI investment thesis — failing to find enough public-market demand at its target price is the kind of data point that hardens skepticism.
The pull also illustrates a specific structural risk: the gap between private-market valuations and what public investors will pay. Firmus's backers believed the company was worth $44 billion. Enough institutional buyers disagreed that the deal could not proceed at its proposed price, and rather than cut deeply, the board chose to withdraw.
For AI infrastructure startups watching from the sidelines, the lesson is uncomfortable. Private-market marks do not automatically convert into public-market reality, and a story built on future AI factory capacity has to survive contact with investors who can see exactly how many operating sites stand behind it.
Firmus says it will pursue private capital and consider alternative public and private market options. Whether investors who just watched a $7 billion raise collapse will extend it fresh checks — and on what terms — is now the question that matters, both for the company and for the broader AI infrastructure funding market it suddenly personifies.
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