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HOME/NEWCOMER NEWSLETTER/Investors Turn on Data Center Bu…
NEWS
// NEWSLETTER ISSUE
NEWCOMER NEWSLETTER

Investors Turn on Data Center Builders as Rising Interest Rates Dampen the AI Trade

DATE October 16, 2026SOURCE NEWCOMER NEWSLETTERPARTICIPANTS ERIC NEWCOMER
In this episode
// SUMMARY

1. Key Themes

Theme 1: The neocloud debt-financed AI buildout is hitting a rising-rate wall

CoreWeave's economics depend on investment-grade borrowing costs it no longer has

The bond market has turned skeptical of leveraged AI infrastructure, and CoreWeave's business model requires cheap debt to work.

"CoreWeave, for its part, is battling a bond market that has abruptly become far more skeptical of the AI buildout; its debt was trading at distress levels mid-week before recovering somewhat, but the bonds still pay a 15% yield as of Thursday. Yet the company needs to be able to borrow at investment-grade rates — i.e. more like 6% — for its math to work."

Equity and debt markets are diverging

Equity holders remain optimistic while credit markets price in stress, and insiders are selling.

"Equity investors, still drawn to the upside of the AI trade, are hanging in there; CoreWeave shares have fallen 30% over recent weeks but still sit 60% above its IPO offering price 18 months ago."

"a Bloomberg story late in the day showing that CoreWeave founders have sold $3.3 billion in stock since the IPO isn't likely to improve the mood of shareholders."

The author expects broader fallout across the category

"Now the grim reaper of rising interest rates, alongside political backlash and general market jitters over the AI trade, is coming for the neoclouds."

"The betting here is that there's carnage to come."

Theme 2: Public-market investors are rejecting speculative neocloud IPO valuations

Firmus's pulled IPO is an early warning signal

Investors balked at a valuation far out of line with delivered capacity and revenue.

"it tried to go public last week at a valuation of $30 billion, though it only had $59 million in revenue in FY 2026 and has only delivered 46MW of its 912MW data center pipeline. Oh and its CEO had done time for insider trading. That's circa-2000 bubble vibes for sure."

"The Firmus IPO was pulled after investors balked at the valuation, and what looked like arrogant overreach, and they ultimately weren't willing to back it even at a lower price."

Nscale shows a similar profile

"Nscale, which filed to go public last month, has a similar profile: a $35 billion valuation based on contracts with Microsoft and Anthropic, and a big ratio of promised megawatts to actual capacity online. That deal is already looking shaky."

Theme 3: Anthropic's slowing growth challenges the demand assumptions underpinning data center financing

Growth decelerated sharply, and a slice of revenue is lower quality

"it had hit nearly $17 billion in revenue for the third quarter. That's up 46% from the previous quarter, which is impressive, but well below the explosive 100% growth it showed between the first and second quarters. Around 5% to 7% of Anthropic's revenue came from 'distillation,' a process where rival AI model makers train their models on the outputs of more advanced ones."

Valuation expectations are being reset, and the downstream debt stack depends on Anthropic delivering

"That makes the $2 trillion valuation Anthropic was targeting at its IPO feel like a reach; on Thursday, Reuters reported that some investors were discussing a valuation of around $1.5 trillion."

"The company is projecting it will spend upwards of $500 billion on data center capacity over the next decade. And cloud providers like Coreweave and the rest are taking on expensive debt in anticipation of Anthropic being able to make good on that projection."

Theme 4: Enterprise AI spending signals are cooling

New customer growth and token spend are flattening

"The growth in new AI customers has dropped significantly, according to fresh business spending data from Ramp."

"AI token spending growth has been basically flat for two months in a row, likely due to price declines at the frontier and the models becoming more efficient overall, writes Ramp chief economist Ara Kharazian..."

Competitive share is shifting at the margins

"OpenAI managed to narrow Anthropic's gain and xAI saw a slight uptick due to the popularity of GrokBot, but it wasn't enough to reverse the trend that began this summer."

2. Contrarian Perspectives

Flat token spend may reflect efficiency, not weakening demand, which complicates the infrastructure bull case

Ramp attributes flat spend to falling prices and model efficiency rather than reduced usage. If usage is growing but cost per unit falls, revenue for model providers (and the compute needed per dollar) may not scale the way data center financiers have underwritten.

"AI token spending growth has been basically flat for two months in a row, likely due to price declines at the frontier and the models becoming more efficient overall."

Founder-friendly norms are enforced by market power, not principle, and insiders privately sympathize with the investor

Publicly the Valley sided with the founder, but private sentiment diverged. The piece also argues the dispute won't change deal terms, because founders will simply take money elsewhere.

"Publicly, most people backed Taylor, and some termed the situation 'tough'; Silicon Valley founders are untouchable at the moment. But investors we spoke to were privately more sympathetic to Day One's predicament."

"sources told us it was unlikely to spur legal tweaks or challenges at other startups because if VCs over-negotiate, founders will go elsewhere."

Management's "irrational markets" defense is undercut by the category's own origins

"CEO Mike Intrator was forced to plead 'irrational markets' in explaining the bond selloff, which was amusing given that the whole category is arguably the product of irrational exuberance."

3. Companies Identified

CoreWeave

  • Description: Leading "neocloud" AI compute provider; highly leveraged, IPO'd spring 2025.
  • Why mentioned: Archetype and bellwether of the debt-financed AI infrastructure boom.
  • Quotes: "CoreWeave is an archetypal company of the AI boom, for better and for worse. Now the markets are testing its mettle." / "Launched by a group of finance and bitcoin guys, CoreWeave saw early that there'd be a huge need for AI compute and built a highly leveraged vehicle that deployed massive amounts of capital to serve that need."

Firmus Grid

  • Description: Australian neocloud and former Bitcoin miner backed by Coatue, Jane Street, Blackstone, with close Nvidia ties.
  • Why mentioned: Pulled IPO at a $30B valuation; early indicator of investor pushback.
  • Quotes: "The Firmus IPO was pulled after investors balked at the valuation." / "The company insists it still plans to go public in New York next year and in the meantime will raise private funds."

Nscale

  • Description: Neocloud that filed to go public; $35B valuation tied to Microsoft and Anthropic contracts.
  • Why mentioned: Similar risk profile to Firmus, with a large gap between promised and online megawatts.
  • Quotes: "a big ratio of promised megawatts to actual capacity online. That deal is already looking shaky."

Nebius

  • Description: Neocloud player.
  • Why mentioned: Cited as part of the debt-financed wave inspired by CoreWeave.
  • Quotes: "Companies including Nebius, Nscale, and Firmus ramped up debt-financed projects backed by Nvidia (both its chips and its equity in some cases) and private credit lenders such as Apollo and Blackstone."

Nvidia

  • Description: AI chip leader; supplies chips and equity to neoclouds.
  • Why mentioned: Deeply entangled in neocloud financing; its CEO offered a public vote of confidence.
  • Quotes: "Nvidia's Jensen Huang — deeply invested, both literally and figuratively, in the success of CoreWeave and Firmus."

Anthropic

  • Description: Frontier AI lab preparing for a public offering.
  • Why mentioned: Its revenue trajectory and compute commitments anchor neocloud demand.
  • Quotes: "The company is projecting it will spend upwards of $500 billion on data center capacity over the next decade."

Apollo and Blackstone

  • Description: Private credit/alternative asset managers.
  • Why mentioned: Lenders financing neocloud projects (Blackstone also an equity backer of Firmus).
  • Quotes: "private credit lenders such as Apollo and Blackstone."

Valar Atomics

  • Description: Nuclear-reactor maker that raised roughly $1B in funding; backed by Sequoia.
  • Why mentioned: Founder is suing his seed investor over pro-rata rights.
  • Quotes: "If Valar becomes a 'multi-trillion-dollar company,' as Taylor says it can be, Bucher will make spectacular amounts of money."

Day One Ventures

  • Description: Seed investor in Valar Atomics, founded by Masha Bucher.
  • Why mentioned: Refused to waive pro-rata and spring-back rights, triggering a legal dispute.
  • Quotes: "Day One's name in a press release will now have a wildly different association."

Sequoia

  • Description: Top-tier VC.
  • Why mentioned: Led the Valar round that triggered the dilution dispute.
  • Quotes: "When Sequoia invested in the nuclear-reactor maker earlier this year, other investors waived pro-rata rights and 'spring back' rights."

Ramp

  • Description: Business spending platform producing AI spend data (also noted as raising a big new round).
  • Why mentioned: Source of the token-spend flattening data.
  • Quotes: "The growth in new AI customers has dropped significantly, according to fresh business spending data from Ramp."

OpenAI and xAI

  • Description: Frontier AI labs.
  • Why mentioned: Competitive share shifts in Ramp data.
  • Quotes: "OpenAI managed to narrow Anthropic's gain and xAI saw a slight uptick due to the popularity of GrokBot."

Other companies named in the summary only (no detail provided): Bumble/Ithaca Holdings, Modal, Bending Spoons (with Berkshire Hathaway money and Airtable layoffs), Meta (Muse models).

  • Quotes: "Bumble taken private by Ithaca Holdings, a buyout vehicle for top VCs. Ramp and Modal raise big new rounds. Bending Spoons brings in Berkshire Hathaway money, lays off Airtable team. Meta has a big week with Muse models."

4. People Identified

Mike Intrator

  • Description: CEO of CoreWeave.
  • Why mentioned: Publicly defended the bond selloff as market irrationality.
  • Quotes: "CEO Mike Intrator was forced to plead 'irrational markets' in explaining the bond selloff."

Jensen Huang

  • Description: CEO of Nvidia.
  • Why mentioned: Offered a vote of confidence in CoreWeave's cost of capital.
  • Quotes: "insisting that CoreWeave's cost of capital was actually declining and all would be fine."

Isaiah Taylor

  • Description: Founder and CEO of Valar Atomics.
  • Why mentioned: Suing his own seed investor to enforce "founder friendly" norms.
  • Quotes: "Isaiah Taylor, founder and CEO of Valar Atomics, is trying to enforce the unwritten rules with a lawsuit against his own seed investor, Day One Ventures."

Masha Bucher

  • Description: Founder of Day One Ventures.
  • Why mentioned: Refused to waive pro-rata rights and engaged Quinn Emanuel for legal threats.
  • Quotes: "But Masha Bucher, Day One's founder, refused, and after several testy exchanges, Taylor says Bucher called on Quinn Emanuel to send legal threats."

Ara Kharazian

  • Description: Chief economist at Ramp.
  • Why mentioned: Author of the analysis on flattening AI token spend.
  • Quotes: "writes Ramp chief economist Ara Kharazian..."

Alex Kantrowitz

  • Description: Podcast guest.
  • Why mentioned: Featured discussing OpenAI, Nvidia, and what could derail the AI boom.
  • Quotes: "Alex Kantrowitz on OpenAI, Nvidia & What Could Derail the AI Boom"

Ron Conway

  • Description: Prominent Silicon Valley investor.
  • Why mentioned: Noted in the summary as backing Democrats in the midterms.
  • Quotes: "Ron Conway plays for Team Blue in the midterms."

5. Operating Insights

Match your cost of capital to your business model before scaling debt-financed capacity

CoreWeave's economics only work with investment-grade borrowing, and the gap between 15% and ~6% shows how fragile that dependence is. Operators using leverage should stress-test rate scenarios.

"the bonds still pay a 15% yield as of Thursday. Yet the company needs to be able to borrow at investment-grade rates — i.e. more like 6% — for its math to work."

Delivered capacity and revenue, not pipeline, determine IPO receptivity

Firmus's gap between pipeline and delivery sank its IPO. Founders planning public offerings should prioritize demonstrable execution over promised scale.

"it only had $59 million in revenue in FY 2026 and has only delivered 46MW of its 912MW data center pipeline."

Don't burn trust with early backers, and be transparent about who gets what rights

The Valar/Day One dispute shows reputational stakes on both sides. Founders who leverage later strength against early investors, and investors who hold out, both risk their reputations, and uneven treatment of investors invites conflict.

"'Masha wasn't some elite VC, but god, what founder will now take money from her after this? How will it look? Can they trust her?'"

"Bucher's side believes she alone was told to give up future pro-rata rights, while other investors were not, according to a source with knowledge."

6. Overlooked Insights

Founder insider selling at CoreWeave is large and underpriced in the narrative

The $3.3B in founder stock sales since IPO is a notable signal about insider conviction, mentioned only briefly alongside other news.

"a Bloomberg story late in the day showing that CoreWeave founders have sold $3.3 billion in stock since the IPO."

Distillation revenue reveals a hidden dependency in AI lab revenue quality

A small but notable portion of Anthropic's revenue comes from rivals distilling its models, which may be non-recurring or strategically fragile, and complicates how to value frontier-lab revenue.

"Around 5% to 7% of Anthropic's revenue came from 'distillation,' a process where rival AI model makers train their models on the outputs of more advanced ones, per the Financial Times."