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Yahoo Finance UK questions SpaceX and Anthropic amid AI market selloff

Summary of reporting by Yahoo Finance UK·

Key points

  • Yahoo Finance UK says excitement around Anthropic’s planned flotation may be running ahead of the market, after the earlier SpaceX IPO drew strong demand.
  • SpaceX shares opened at $135, closed at $160 on their first day, reached $225.64 on June 16, and briefly valued the company near $3 trillion, the article says.
  • The report says the S&P 500 fell 4.4% on Thursday, November 5, with SpaceX shares down 9% that day and about 26% over the past month.
  • Yahoo Finance UK says Anthropic had been targeting a November IPO valuation of about $1.5 trillion, but some investors now see $1 trillion as more realistic and question the timing.
  • The piece says SpaceX remains valued at about $1.7 trillion, while the author says they would avoid both SpaceX and Anthropic for now.

SpaceX listing and market enthusiasm

Yahoo Finance UK says stock markets were building excitement around Anthropic’s expected flotation after the attention surrounding Space Exploration Technologies Corporation, or SpaceX. The article says some investors worried about an AI bubble even before the SpaceX IPO, but the offering gained momentum on its own.

SpaceX shares were listed at $135, finished their first trading day at $160, and later climbed to an all-time high of $225.64 on June 16. The article says that peak briefly put Elon Musk’s rocket company at close to $3 trillion in value.

Broader AI and tech selloff

The report says investors were preparing for further gains as Anthropic, the developer of the Claude chatbot, moved closer to its own market debut. But it says many may now be reconsidering after a broad selloff in AI and US technology shares.

According to Yahoo Finance UK, the S&P 500 fell 4.4% on Thursday, November 5, erasing trillions of dollars in market value. It says SpaceX shares dropped 9% that day and are down about 26% over the past month.

Anthropic’s valuation questions

Even before the market slide, the article says there were concerns about Anthropic. It reports that the company has committed almost $900 billion to computing and infrastructure while still posting large losses.

Yahoo Finance UK says Anthropic had been aiming for a November flotation valuation of about $1.5 trillion. Some potential investors now think $1 trillion is more realistic, while others question whether the IPO schedule can hold because of current market volatility.

Caution on valuation and Tesla talk

The article says the writer’s firm, The Twelfth Magpie, sometimes buys shares after bad news, but only when a company’s value can be measured reliably. It says that is harder when a business’s worth is uncertain.

Yahoo Finance UK adds that SpaceX is still valued at about $1.7 trillion despite recent declines. The writer says they have been discouraged by discussion of Musk possibly merging Tesla into SpaceX, and would not buy Tesla shares today. The article ends by saying investors should be cautious with SpaceX and, if its IPO happens, Anthropic as well.

Original reporting

This page summarizes reporting by Yahoo Finance UK, originally published November 7, 2026 at 7:50 AM under the headline "Should investors shun SpaceX stock and the Anthropic IPO as AI panic strikes?". All rights to the original article belong to Yahoo Finance UK.

Continue reading the full story at Yahoo Finance UK

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