What changed on this page since it was published, newest first.
Update (October 27, 2026): Anthropic made its S-1 public on October 26, 2026 (SEC-filed). It proposes the ticker ANT on the Nasdaq Global Select Market and leaves the IPO date and price blank. The filing confirms the $8.06 billion 2025 operating loss cited above and shows a GAAP net loss in every year and six-month period it presents, including $80.7 billion for the first half of 2026 (unaudited). We updated the two passages that described Anthropic's IPO timing so they no longer read as if the filing were still confidential. Our full read of the Anthropic S-1 covers the rest.
Update (October 13, 2026): The Anthropic IPO debate got louder last week. Research firm New Constructs published a report on October 6 that valued Anthropic at about $150 billion, against investor talk of a $2 trillion listing, as reported by CNBC and Yahoo Finance on October 9. Michael Burry also pointed out that Anthropic's valuation would equal 78 S&P 500 companies combined. Anthropic was valued at $965 billion in a May funding round, and its 2025 operating loss was reported at $8.06 billion. These are opinions from critics, not forecasts, and the IPO has not priced.
Update (October 6, 2026): The S&P 500 closed at 7,773.95 on October 5, up from the September 28 level cited below. Nvidia is trading around $238-241 as of October 5-6. Palantir trades near $188-189. In late September 2026, Michael Burry repositioned his AI bear thesis, converting his short positions in Nvidia, Palantir, Micron, Nebius, Oracle, and the SOXX semiconductor ETF to put options, most expiring in June or September 2027. In an October 2 Substack post, he stated the AI bubble "may burst sooner than later" and that he is "moving timelines up" based on weekend research into data-center financing. Anthropic's IPO is now targeted for November 2026 (not mid-October), with Bloomberg reporting a pre-IPO investor day scheduled for October 14. The debate continues.
Update (September 29, 2026): The S&P 500 closed at 7,683.69 on September 28, down from the September 21 level cited below. Nvidia reported Q2 FY27 results on August 26, 2026: $96.2 billion in total revenue and $89.0 billion in Data Center revenue, up 117% year-over-year. Palantir is trading near $187.58 as of September 28. On September 28, Michael Burry announced he has converted all his AI short positions (Nvidia, Palantir, Micron, Nebius, Oracle, and the SOXX semiconductor ETF) to put options, most expiring in June or September 2027, stating the AI bubble "may burst sooner than later" and that he is "moving timelines up" based on weekend research. Anthropic's prospectus is expected in late September, with the IPO now targeted for mid-October. The debate continues.
Update (September 22, 2026): The S&P 500 closed at 7,764.70 on September 21, recovering from the late-August pullback cited below. Palantir continues to trade near $176 as of September 17. In early September, Burry disclosed he closed his December 2026 put options on Nvidia and Palantir to avoid accelerating time decay, but he maintains his bearish AI stance with Oracle, Palantir, and Nebius as his top three short positions, followed by Nvidia and the SOXX semiconductor ETF. Anthropic's prospectus is expected in late September, with the IPO now targeted for mid-October. The debate continues.
Update (September 15, 2026): Nvidia's Q2 FY27 earnings (reported August 26) delivered $96.2 billion in total revenue and $89.0 billion in Data Center revenue, up 117% year-over-year, beating its $91 billion guidance. The S&P 500 has traded in a range around 7,620 to 7,657 through mid-September. Palantir stock continues to trade around $172-174 as of September 15. Burry has continued to expand his AI short positions through early September, adding to Oracle, Palantir, and Nebius positions, though he closed some December 2026 puts to avoid time decay while maintaining his bearish stance. Anthropic's IPO timeline has shifted to mid-October at the earliest, with Reuters and the Japan Times reporting on September 5 that the prospectus is now expected in late September rather than early September. The debate continues.
Update (September 8, 2026): Nvidia reported Q2 FY27 earnings on August 26, delivering $96.2 billion in total revenue and $89.0 billion in Data Center revenue (up 117% year-over-year), beating its $91 billion guidance. The S&P 500 closed at 7,718.60 on September 4, roughly flat from the August 31 close of 7,686. Palantir stock traded around $174-182 in early September, consistent with the mid-August range following its Q2 earnings beat. Burry expanded his AI shorts through late August, adding CoreWeave and increasing positions in Palantir, Micron, SOXX, and Oracle, with his short stock holdings now exceeding 21% of his portfolio per his August 26 Substack post. Anthropic's IPO timeline has shifted to mid-October at the earliest, with Reuters reporting on September 5 that the prospectus is now expected in late September rather than early September. The debate continues.
Update (September 1, 2026): Nvidia reported Q2 FY27 earnings on August 26, delivering $96.2 billion in total revenue and $89.0 billion in Data Center revenue (up 117% year-over-year), beating its $91 billion guidance. The S&P 500 closed at 7,686 on August 31, down from the August 13 peak of 7,799 but still up roughly 13% year to date. Palantir stock traded around $182-186 in early September, up from the mid-August range of $172-174 following its Q2 earnings beat. Burry expanded his AI shorts through late August, adding CoreWeave and increasing positions in Palantir, Micron, SOXX, and Oracle, with his short stock holdings now exceeding 21% of his portfolio. Anthropic is on track for a late September or early October 2026 IPO, with Reuters reporting on August 28 that the prospectus is expected after Labor Day. The debate continues.
Update (August 25, 2026): The S&P 500 pulled back to around 7,652 on August 24, down from the mid-August high of 7,798.99 cited in the prior update. Palantir continues trading near $175-180 following its Q2 earnings beat. Burry disclosed additional AI shorts on August 6-7 (Oracle at $152, Nebius at $247) and August 13, expanding his bearish positioning through early and mid-August. Nvidia reports Q2 FY27 earnings tomorrow, August 26, against its $91 billion guidance. Anthropic remains on track for a September or October 2026 IPO; investor speculation (per multiple August reports) now points to a potential $2 trillion valuation, though the company has not confirmed this figure. The debate continues.
Update (August 17, 2026): The S&P 500 hit a record high of 7,798.99 on August 13 and closed at 7,785.76 on August 14, up from the 7,758 level cited in the August 8 update. Palantir continues trading near $172-174 following its strong Q2 earnings beat. Anthropic investor speculation has intensified: Financial Times reporting on August 13 cited six backers targeting a $2 trillion valuation for an October 2026 IPO, double the $965 billion figure from the May 28 Series H announcement (company-stated), though the company has not confirmed this target. Nvidia reports Q2 FY27 earnings on August 26 against its $91 billion guidance. The debate continues.
Update (August 8, 2026): Since this piece was last reviewed in late July, the S&P 500 has climbed to around 7,758 (up from 7,575 on July 10), Palantir reported a strong Q2 2026 earnings beat on August 4 and the stock has rebounded sharply to roughly $172 (reversing much of the year-to-date decline cited below), and Nvidia is set to report Q2 FY27 results on August 26 against guidance of approximately $91 billion in revenue. Burry has expanded his bearish positions through early August, adding fresh Oracle and Nebius shorts on August 6-7. Anthropic remains on track for an October 2026 IPO, while OpenAI has delayed its own listing to 2027 citing valuation concerns and market volatility following SpaceX's rocky June debut. The core debate laid out below continues to play out in real time.