Anthropic Filed for Its IPO, and Asian Chip Stocks Rallied Overnight

Anthropic's IPO document had circulated in the press as a draft for a week. It was formally filed with the SEC on Monday, October 26, reportedly around 9 a.m. ET.

The company plans to list on Nasdaq under the ticker ANT. The price range and share count are blank in the filing; Goldman Sachs and Morgan Stanley lead the deal.

The reaction came first in the U.S., then in Asia. The Philadelphia Semiconductor Index rose 2.82% on Monday; Nvidia gained 2.4%, Micron 3.0% and Broadcom 2.33%.

Foreign Buyers Drove Seoul

On Tuesday morning the Kospi climbed as high as 5,737.61, and a jump in index futures triggered the mechanism that briefly pauses program buying. The index closed up 3.09% at 5,638.34.

Foreign investors were net buyers of ₩592.9 billion for the day, about $448 million at 1,324.60 won per dollar. Retail investors were net sellers of ₩949.4 billion, about $717 million.

In Tokyo, the Nikkei 225 rose 1.68%. The direction was the same in both markets: money went not to Anthropic itself but to the companies that turn its spending into revenue.

SK Square, SK Hynix's largest shareholder, rose more than SK Hynix itself. Kioxia climbed as much as 7.85% in the morning and then finished the day nearly flat.

What the Market Bought

The question dragging chip stocks down over the past two weeks was whether AI companies could pay for what they had promised. The chip index fell 6.7% on October 22 after Lam Research's warning.

The chart below shows the Nasdaq 100 fund's path over the past month, counted back from today.

The market did not read the filing as a software company's IPO. It read it as collateral for the chip suppliers' receivables.

The Customer's Cash Is the Supplier's Collateral

A cloud or chip contract is worth only as much as the customer's ability to pay. An IPO directly enlarges that ability.

That calculation is the worst case, with no revenue at all. In the first half the company booked $8.9 billion of compute expense, equal to 55% of its $16.3 billion in revenue.

According to reports, the largest commitments are roughly $114.5 billion to Google, $110 billion to Amazon and $44.9 billion to Microsoft. A deal with SpaceX for Nvidia-powered compute could reach $120.5 billion.

The filing says most of the commitments will be paid between 2031 and 2045. The cash covers the first five years; only growing revenue can cover what comes after.

The Part That Does Not Fit

The company reported a first-half operating loss of $693 million and a net loss of $80.7 billion. Of that net loss, $72.4 billion is not cash out the door but an accounting charge from the rising value of older convertible financing.

Control will not go public either. A single Class F share gives the seven co-founders' joint entity 50.1% of the votes, while the Long-Term Benefit Trust elects a majority of the board.

New shareholders will share in the company's revenue, not in its decisions. Our IPO guide explains how listings work, and our earlier piece covered the scale of the commitments.

What It Means for Investors

• The market priced in that the IPO will happen, not its price; if the range values the company below the reported $1.5-2 trillion, the reaction could reverse.
• For Alphabet, Amazon and Microsoft, Anthropic's cash lowers the payment risk of a major customer in their backlogs.
• SK Hynix's results on October 28 will show, for Micron and SanDisk too, whether Seoul's rally is turning into memory orders.
• The risk that breaks the thesis is revenue growth failing to keep pace with the payment wave that starts after 2031.

Sources: The filing date, exchange, ticker, voting structure and 2031-2045 payment timeline come from the S-1 filed with the SEC and from Anthropic's announcement. Revenue, expense and cash figures come from the S-1. The split of commitments by company comes from TFN and IBTimes reports. The IPO size and valuation are press reports only and do not appear in the filing. The Seoul close comes from DigitalToday, the Tokyo close from JapanNews24 and TradingKey, and Monday's U.S. moves from Seoul Economic Daily and Bloomingbit.