Writing extinction risk into the S-1 costs Anthropic less than leaving it out

A risk factor costs nothing to write. Its function is to move a claim out of the category of things a buyer can later say were concealed, and amending a confidentially filed registration before it goes effective is ordinary practice. Coffee's amendment point is the cheap half of the problem ^[3].

The warning that set this off came from a former Anthropic researcher, Jacob Coxon, who said AI might threaten human life by the end of the decade ^[5]. The President called it a "hoax" and the Chinese government called it "fearmongering," according to The Daily Upside ^[6].

The expensive half is that nobody can put a number on the sentence. A discounted cash flow assumes the cash flows continue. A disclosed chance that they stop because the species does sits outside the model, so it goes into the risk factors and stays out of the valuation. The price gets set on the revenue line instead, and the revenue line is a run-rate. Annualized means end-of-July billing multiplied out, not seven months of collected cash. Going from $9 billion in December to $65 billion annualized at the end of July is 7.2 times in seven months, or roughly 33% compounded each month ^[13][1][2].

The margin claim comes with its own definition. Anthropic told investors margins are above 80% excluding some costs. On a $65 billion run-rate that implies more than $52 billion of annualized adjusted operating income ^[15][3]. The measure strips out stock-based compensation and was positive for the second straight quarter ^[14].

Sam Altman told Fortune over the weekend that "Given everything happening with safety, this would right now be an ill-advised moment to go public" ^[9]. Anthropic did the opposite. A day after Amodei called on the industry to slow the pace of development ^[17], the company was telling investors about the $65 billion ^[13]. Reuters reports it is still aiming at the largest IPO in history ^[11].

In my view the disclosure question is close to free and the pricing question is not. Anthropic may already have written the risk into the June filing, given how long Amodei has been describing it in public ^[7]. In that case there is nothing to amend and the scrutiny is about timing. Or an IPO buyer files a purposeful-omission claim anyway ^[4], and the cost stops being legal fees. The test is the range. If underwriters build a book consistent with $2 trillion with an extinction risk factor on the record ^[12], the words were free. If they cut the range after an amendment, the words cost something. The power plants Moody's costed equal 5.5% of the valuation Anthropic is asking for ^[4].