Anthropic's oversubscribed IPO revives the AI trade, but it measures investor appetite, not profitability

Investors want a piece of Anthropic, and the AI trade is moving again because of it. Bloomberg reports that the company's IPO drew orders for several times the number of shares available. The listing could become the largest first-time share sale ever.

The demand came alongside a second piece of good news. CoreWeave raised its full-year revenue forecast above Wall Street's expectations. CoreWeave is a "neocloud", a specialised provider that rents out GPU capacity for AI, and Bloomberg describes it as debt-laden. Together, the two stories helped the Nasdaq 100 recover all the losses from the sharp selloff late last week. In Europe, the Stoxx Europe 600 closed at a record.

The backdrop matters. Last week tech stocks fell on worries about the data-centre buildout that AI depends on, meaning the huge spending on chips, power and buildings that has to pay off eventually. A week later, one strong order book and one revised forecast were enough to reverse that mood. That shows how much of AI valuation is driven by sentiment. It also shows how quickly that sentiment can change.

An oversubscribed IPO (one with more buy orders than shares) tells us investors are eager to own a frontier AI lab. It does not tell us the business model is solved. In earlier coverage we noted that Anthropic's amended S-1 filing shows about $600 million in revenue given up through price cuts and discounts. The same filing shows compute costs growing faster than revenue. Per-token prices are trending toward commodity levels. In the long run, margins will depend on how efficiently a company can run its models and power them, more than on how good the models are. A huge order book does not change any of that.

Our reading: this is good news, and it should be read soberly. Strong demand gives Anthropic capital to keep building at the frontier. Its Fable and Mythos models are among the strongest systems available, and its focus on safety now has a public-market valuation behind it. Cheaper capital also speeds up research that could matter a great deal over decades, in science, medicine and productivity. That is the abundance case we keep coming back to. In the near term, though, the risk sits in a chain of dependencies. AI labs rely on neoclouds. Neoclouds carry heavy debt. And that debt is being paid down from revenue that labs are cutting through price reductions. If any link weakens, this week's rally could reverse just as fast as last week's selloff did.

What to watch next: the final IPO price, how the stock trades in its first weeks and, above all, Anthropic's first quarterly reports as a public company. Revenue against compute cost will show whether this is a durable business or a well-told story. The market has shown it believes in AI. Now Anthropic has to show the numbers support that belief.