Anthropic files for Nasdaq IPO under 'ANT'; H1 rev $16.3B

Anthropic filed its S-1 with the SEC on October 26 and applied to list Class A common stock on the Nasdaq Global Select Market under ticker 'ANT,' per the company's announcement. Goldman Sachs and Morgan Stanley are named as underwriters. The filing itself is blunt about what is still open: "The number of shares of Class A common stock to be offered and the price range for the proposed offering have not yet been determined."

The revenue line is why Wall Street cares. The prospectus shows $16.3 billion in first-half 2026 revenue against roughly $1.2 billion a year earlier, Bloomberg reported, with $11.6 billion in Q2 alone, $974 million of Q2 operating income, and $3.93 billion in cash from operations for the half.

The $80.7 billion net loss is not what it looks like. Roughly $72.4 billion of it is a non-cash charge tied to fair-value accounting of convertible notes, which inflates on paper as the company's valuation rises.

Compute is still the real cost. Infrastructure spend climbed to $8.95 billion from $2.33 billion a year earlier, and the risk section flags concentrated demand: approximately 20% of first-half 2026 revenue came from just two customers, according to The Information, down from nearly a quarter of 2025 revenue when the base was $4.6 billion. The filing does not name the two accounts, though Anthropic sells through Amazon, Google, and Microsoft's cloud platforms.

The registration has not yet gone effective, meaning securities cannot be sold until that happens.