Firmus Technologies, an Australian data center operator backed by Nvidia, Blackstone, and Jane Street, withdrew its planned initial public offering on the Australian Securities Exchange (ASX) on October 9, 2026, after just 48 hours of bookbuilding — the process in which prospective investors signal their demand before a deal is priced — with demand falling short of what was needed to support the deal.

The withdrawal marked a rapid and public reversal for a company that had been positioned as one of the AI infrastructure sector's most prominent players.

What the IPO Sought

The offering aimed to raise approximately $5 billion at a share price of A$11, an amount that implied an equity valuation of roughly $30.6 billion. Just two months earlier, Firmus had been valued at $10.5 billion in a private funding round, meaning the IPO pricing would have nearly tripled that figure within a span shorter than most corporate budgeting cycles.

Valuation was not the only sticking point. Firmus carries approximately $30 billion in debt, a figure that drew concern from prospective buyers. Taken together, the deal asked investors to underwrite a company with roughly $60 billion in combined equity value and debt.

A partnership problem compounded the skepticism. CDC Data Centres, a key partner, reportedly exited a major project, adding to the doubts circling the deal.

Who Firmus Is

Firmus was founded in 2019 by Oliver Curtis and Tim Rosenfield. The company operates what it calls "AI factories": data centers built specifically for heavy artificial intelligence workloads. These facilities use liquid cooling rather than relying solely on air, with Firmus pairing Nvidia hardware with its own proprietary liquid-cooling systems.

Its client list includes OpenAI and Meta, two of the most aggressive spenders in the AI race.

Despite the high-profile customers and backers, Firmus's physical footprint remains modest. The company operates two data centers, one in Melbourne and one in Singapore, with five more under development — meaning the roughly $30.6 billion valuation applied to a company with just two facilities in operation.

What the Collapse Signals

Some managers viewed the withdrawal as a good result. In their view, pulling the deal spared retail investors from potential disappointment had shares slumped after listing. The withdrawal also came amid criticism that the IPO terms did not reflect the company's long-term prospects or the growing risks across the industry.

Firmus now plans to pursue private capital instead — the same private markets where its $10.5 billion valuation was set just two months earlier.

The episode also underscores a structural tension worth watching. AI data centers demand enormous upfront capital, and Firmus's roughly $30 billion debt load shows how quickly those obligations stack up before facilities are fully online.

What to watch next: the terms of any private raise Firmus secures, progress on its five facilities under development, and whether the CDC Data Centres situation is resolved.