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AI Chipmaker Cerebras Withdraws U.S. IPO Filing After $1.1 Billion Fundraising Round

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Cerebras Systems, the California-based AI chip startup seen as one of the most promising challengers to Nvidia, has withdrawn its planned U.S. initial public offering (IPO), according to a regulatory filing on Friday. The decision takes effect immediately and comes just days after the company closed a massive $1.1 billion funding round.

The move surprised some investors given that U.S. IPO activity has recently rebounded sharply, buoyed by surging enthusiasm for AI-related stocks. Recent debuts, such as Fermi’s data center REIT listing, have drawn strong investor demand, reversing a slump caused by trade-policy and market uncertainty earlier in the year.

Analysts said the withdrawal likely reflects strategic timing rather than weak market sentiment. “Given that Cerebras just very recently completed a sizeable fund raise, it is of no surprise that they are holding off to pursue the IPO at this time,” said Josef Schuster, CEO of IPO research firm IPOX.

Cerebras’ latest financing round—led by Fidelity Management & Research and Atreides Management—valued the company at $8.1 billion and included participation from Tiger Global, Valor Equity Partners, and 1789 Capital, a fund partially linked to Donald Trump Jr.

Despite withdrawing the IPO filing, CEO Andrew Feldman emphasized that the company still intends to go public eventually. “We’re continuing to execute on our roadmap,” he said earlier in the week, noting that Cerebras’ focus remains on scaling production and commercialization of its high-performance AI chips designed to accelerate the training of large models.

The company had initially filed for a Nasdaq listing last year, but the process was delayed by a U.S. national security review of a $335 million investment from G42, an Abu Dhabi-based cloud and AI firm. That review reportedly examined potential concerns about foreign influence and technology transfer.

Industry observers view Cerebras’ decision as a pause, not a retreat. “This is more a company-specific strategic decision and does not tell us anything about the state of U.S. IPO sentiment, which we view as exceptionally strong,” Schuster added.

Founded in Sunnyvale, California, Cerebras Systems specializes in ultra-large AI processors and computing systems, including its flagship Wafer Scale Engine (WSE), a chip designed to massively outperform traditional GPUs in AI workloads. The company has become a key player in the rapidly expanding AI hardware ecosystem—one now defined by fierce competition, colossal valuations, and geopolitical scrutiny.

Investors Warn of “AI Hype Bubble” as Startup Valuations Soar to Record Levels

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A growing number of leading investors are warning that artificial intelligence (AI) startup valuations are overheating, with early-stage funding rounds reaching unsustainable levels amid a global rush to back the next OpenAI.

Speaking at the Milken Institute Asia Summit 2025 in Singapore, Bryan Yeo, chief investment officer of Singapore’s sovereign wealth fund GIC, cautioned that the early-stage AI market is showing signs of “hype-driven froth.”

“There’s a little bit of a hype bubble going on in the early-stage venture space,” Yeo said. “Any startup with an ‘AI’ label gets valued at massive multiples of its tiny revenue. That might be fair for some, but probably not for most.”

According to PitchBook, AI startups raised $73.1 billion globally in the first quarter of 2025, accounting for nearly 58% of all venture capital investment. The surge has been fueled by megadeals such as OpenAI’s $40 billion capital raise, as investors race to secure a stake in the sector’s perceived future winners.

Yeo warned that “market expectations could be way ahead of what the technology can deliver,” adding that the ongoing AI capital expenditure boom may be masking economic vulnerabilities beneath the surface.

Todd Sisitsky, president of private equity firm TPG, echoed Yeo’s concerns, describing the fear of missing out (FOMO) as a dangerous force driving irrational valuations. “Some AI firms are hitting $100 million in revenue within months,” he said, “while others—still in early stages—are valued between $400 million and $1.2 billion per employee. That’s breathtaking.”

The warnings reflect growing unease among veteran investors who have seen similar speculative waves—from dot-com mania in the 1990s to crypto exuberance in the 2020s—inflate asset prices far beyond their underlying value.

Still, opinions remain divided on whether the AI sector has already formed a full-blown bubble or is simply experiencing the natural excesses of a transformative technology boom.

What’s clear is that AI’s gravitational pull on global capital continues to intensify, reshaping investment priorities and heightening the risk that innovation and speculation will soon collide.

Lendbuzz posts 38% revenue surge ahead of U.S. IPO

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Auto-loan fintech Lendbuzz disclosed a sharp 38% jump in revenue in its U.S. IPO filing, underscoring renewed investor interest in fintech listings after years of market slowdown.

The Boston-based company reported $172.9 million in revenue and $11.1 million in net income for the first half of 2025, up from $125.4 million revenue and $5.6 million profit a year earlier. Lendbuzz and some existing shareholders will sell shares in the offering, with the stock set to trade on Nasdaq under the ticker “LBZZ”.

Founded in 2015, Lendbuzz uses artificial intelligence to provide auto loans for borrowers with little or no credit history, positioning itself as an alternative to traditional banks. The company partners with car dealerships and was last valued at $1.1 billion in a 2023 funding round. Its major backers include venture firms 83North and OG Tech Ventures.

The IPO will be led by Goldman Sachs, J.P. Morgan, RBC Capital Markets, and Mizuho.

The listing follows Swedish buy-now-pay-later firm Klarna’s New York debut earlier this week, a long-awaited moment seen as a test case for fintech IPOs. Analysts suggest Klarna’s aftermarket performance will act as a bellwether for firms like Lendbuzz hoping to benefit from the rebound in tech listings.

Edward Best, partner at Willkie Farr & Gallagher, said IPO activity will likely remain strongest in AI and fintech, reflecting where investor excitement is concentrated.