Anthropic’s $1 Trillion IPO Test for AI Infrastructure Spending

By Tom Whitfield

What changed in Anthropic’s valuation?

One prospective investor now values Anthropic at $1 trillion, down 50% from October expectations near $2 trillion and well below the headline $2.5 trillion ambition. No reported result or set IPO price confirms that private-market estimate.

Anthropic remains a private company, while Amazon, Nvidia, Alphabet and Microsoft have public-market ties that already appear in their results. These companies back the lab, host its models or supply its chips, so Anthropic’s valuation reaches investors through more than one route.

Three prospective institutional investors told The Wall Street Journal that the expected $1.5 trillion valuation probably needs to fall. Anthropic had reportedly wanted to raise as much as $100 billion, while investors now discuss an offering of about $80 billion.

The immediate issue is the offering’s price and size, before any public trading begins.

Can revenue cover the infrastructure commitments?

Anthropic reported third-quarter revenue of $16.96 billion, up 47% from the prior quarter. Growth slowed from 144% in the previous quarter, while the company reported a $23.29 billion quarterly net loss that included nonoperating accounting effects.

Anthropic also reported about $895.4 billion in future computing and infrastructure commitments. About $69.8 billion comes due over the following 12 months, and meeting that schedule depends partly on whether partners can finance and deliver the capacity.

Nvidia CFO Colette Kress made the constraint explicit on the August 26, 2026 earnings call. She said: “The Frontier AI labs have extraordinary demand for training and inference compute, but they are growing faster than what their balance sheets and credit profiles can support.”

Nvidia has committed nearly $50 billion to frontier AI labs. The chip supplier expects demand from labs supported with its own balance sheet to represent roughly one-quarter of its business next year.

The spending target therefore depends on outside financing and delivery, not demand alone.

How do public investors carry Anthropic’s risk?

Amazon’s results show how much Anthropic can affect a public company. Its net income for the quarter ended June 30, 2026 included $53.4 billion in pretax gains, mostly from its Anthropic stake, which lifted GAAP earnings per share to $5.75 against a $1.82 consensus estimate.

In the next quarter, Amazon recorded a $1.21 billion net nonoperating expense and GAAP EPS of $1.89, below expectations of $1.96. Microsoft’s quarter ended June 30 included a $3.2 billion gain from its Anthropic stake, giving both companies a direct accounting reference to the private valuation.

A lower IPO price would lower the public reference point for those Anthropic holdings. With no Anthropic shares available, Thursday’s selloff reached investors through its partners, as NASDAQ-listed companies lost about $2.5 trillion in market value.

Nvidia fell 8.8% in the week ended November 6, dropping from $204.64 to $186.64, and it remained 21.4% lower over the preceding month. Amazon rose 7.88% during the same week, while Microsoft gained 1.67%.

A private valuation can still move public earnings, reference prices and sentiment across the AI supply chain.

Can the AI buildout absorb lower valuations?

Amazon’s expected 2026 capital spending is about $220 billion, and CEO Andy Jassy said the company looks to “spend meaningfully more in 2027.” CFO Brian Olsavsky warned that “the outsized growth of AI puts margin pressure on the business as a whole because the margins are lower there.”

Nvidia addressed a related criticism directly: “We know some will call this circular financing.” A lower Anthropic valuation could pull down expectations for other AI companies and make investors more skeptical of the large infrastructure spending behind the sector.

That skepticism would extend to power, cooling and networking suppliers, whose expansion depends on the same spending cycle. Anthropic has become a test of whether Wall Street demand for AI investment is weakening.

A lower IPO price would make the economics of AI infrastructure harder to defend.

What happens before Thanksgiving?

Anthropic plans its IPO for before Thanksgiving. Some prospective investors are considering whether the company should proceed on that schedule, although a delay remains possible if markets improve.

In August, Nvidia CEO Jensen Huang said of the AI labs: “Two of the companies will likely go public soon, and others will follow.” For long-term holders of Amazon, Nvidia and Microsoft, Anthropic’s offering price will reveal what the market will pay for AI growth.

If the most closely watched AI lab commands only $1 trillion, investors will examine every dollar of AI infrastructure spending more closely. If Anthropic prices near $1 trillion, buyers are likely to demand clearer returns from chips and computing capacity, while any delay would test how much financing the market still supports.