Here is a sentence that would have sounded like parody a few years ago: an AI company is warning that its own technology could pose a catastrophic risk to humankind, and the warning lands just before it sells shares to the public. Anthropic is set to become the first true artificial intelligence company to go public, meaning it will hold an IPO, or initial public offering, the first moment ordinary investors can buy in. Ahead of that listing, it has issued a warning about catastrophic risk.

You can read that warning as a sober act of responsibility. Or you can notice how well it works as a prospectus accessory. Nothing sells a growth story like the suggestion that the thing you are building is powerful enough to end civilisation. Nobody gets excited about a tool that is merely useful. A tool that could end the world carries a certain gravitas, and in a bull market, gravitas gets priced in.

So what does this mean for you? Probably not what the headline wants. A company warning about its own dangers tells you nothing about whether its shares are worth buying. It tells you the company understands what grabs attention. Take the warning seriously if you like, but judge any stock on revenue, costs, and whether the business can survive a bad year, not on how alarming its communications team can sound. If the apocalypse is real, no portfolio will save you. And if it is a pitch, you do not need to buy it.