Anthropic IPO before 2027?

Yes at 90% on 31 Oct 2026, up 8 pts over the previous 7 days. 3 big jumps since 16 Oct 2026, listed below.

Data from Polymarket. Numbered dots are the jumps explained below.

Context

This prediction market asks whether AI company Anthropic will complete an Initial Public Offering (IPO) by December 31, 2026. It will resolve to "Yes" if the company officially lists its stock on a recognized stock exchange before the deadline, based on credible news reporting and official announcements.

Anthropic has recently published its IPO prospectus, sparking widespread media coverage and debate over its financial disclosures. Reports highlight a massive S-1 filing revealing an $80.7 billion loss, generating both intense investor hype and caution regarding the future of artificial intelligence.

Key figures and factors include the blockbuster IPO prospectus, detailed risk disclosures in the S-1 filing, and expert commentary from outlets like Reuters, Bloomberg, and the Financial Times. The market window remains open until the end of December 2026.

Sources: Yahoo Finance: SpaceX's Stock Sits Below Its June IPO Open. Is That a Warning Sign for Anthropic?, https://tech-insider.org/: Anthropic IPO: 4 Indian-Origin Leaders, $16.29B [2026], The New York Times: Opinion | What Anthropic’s I.P.O. Filing Says About the Future of A.I., Reuters: Anthropic's IPO: the existential AI test, Bloomberg: Anthropic’s IPO Hype Meets Growing Investor Caution, Yahoo Finance: Can You Invest in Anthropic Before the IPO? Here's the Clear Answer., Yahoo Finance: The Anthropic IPO Will Be an Epic Failure, Based on What History Tells Us, Yahoo Finance: The Biggest Risk to Anthropic Stock Is the Company Itself, Reuters: The hawkish pause, Lula's market meltdown, and the Anthropic IPO bombshell: The financial week in five charts, CNBC: The big questions remaining after Anthropic’s blockbuster IPO prospectus, Fortune: Berkeley Law professor: Anthropic’s IPO puts AI accountability to the test, Fortune: Anthropic’s IPO filing spends 69,800 words on AI’s risks to investors and says little about the risks to the rest of us, Financial Times: Anthropic may not secure investment-grade rating after IPO, Blackstone tells investors, shattered.io: Anthropic S-1: $80.7B Loss, 5 Big Questions [2026], Yahoo Finance: S&P 500 Slips Weekly as Underwhelming Hyperscaler Results Offset Anthropic's IPO Boost

Written by AI from the linked news sources and checked automatically, not by a person.

What could move it next

No upcoming events listed for this market yet.

Price jumps explained

  1. 26 Oct 2026

    Anthropic Files IPO Prospectus

    80% → 96%Likely cause

    The probability of an Anthropic IPO before 2027 rose after news outlets reported that the company filed its IPO prospectus and S-1 paperwork. Credible sources including JournalArta and The New York Times confirmed the official filing, signaling that the public offering is moving forward.

    Sources: JournalArta: Anthropic Files IPO Prospectus as First-Half Loss Reaches $80.7 Billion, The New York Times: Anthropic’s I.P.O. Prospectus Spells Out a Future of Promise and Peril, Axios: Claude says Anthropic's IPO is a buy. ChatGPT disagrees, Business Insider: Anthropic's S-1 paperwork reveals the stunning finances behind its meteoric rise ahead of its IPO, Reuters: Anthropic rewards firms with IPO roles as it eyes future legal risks, Yahoo Finance: Anthropic IPO: SpaceX stands to make out big from AI lab's compute spending, Reuters: Anthropic's soaring sales, steep losses put AI frenzy to IPO test, The New York Times: 7 Numbers That Explain Anthropic’s Business, CBC: Anthropic files for potentially biggest IPO ever, even as CEO warns of AI risks to humanity, Bloomberg: Anthropic’s Massive Revenue Surge Comes With Ballooning Computing Bill, NBC News: 6 key takeaways from Anthropic’s IPO filing, WSJ: The Biggest Takeaways From Anthropic’s IPO Prospectus, Business Insider: Anthropic's IPO sparks fear of market instability amid glut of AI stock, CNBC: Anthropic's IPO puts power in the hands of founders, giving everyday shareholders little voice, NBC Palm Springs: Anthropic Files IPO Paperwork Ahead of Expected Stock Market Debut

    After 24 h: held. After 7 days: too early.

  2. 26 Oct 2026

    Anthropic IPO Filing Boosts Market Confidence

    73% → 82%Likely cause

    The chance of Anthropic completing an IPO before 2027 rose after reports emerged regarding the company's filing for a US IPO. This filing detailed key executives and the board, pointing toward a public offering.

    Sources: Reuters: Anthropic's filing for blockbuster US IPO shows key executives and board

    After 24 h: held. After 7 days: too early.

  3. 16 Oct 2026

    Anthropic IPO Valuation and Delay Concerns

    74% → 63%Confirmed cause

    The probability of Anthropic completing an IPO before 2027 decreased after reports emerged that investors are tempering their valuation expectations to $1.5 trillion amid slowing revenue growth. Additionally, the New York City Comptroller called for a pause and delay in the company's IPO plans to address AI safety risks.

    Sources: Bloomberg: Watch Anthropic Should Delay IPO to Address AI Safety Risks, Says NYC Comptroller, Chief Investment Officer: NYC Comptroller Levine Calls for Pause in Anthropic IPO Plans, TheStreet: Anthropic’s $2 trillion IPO dream hits a new reality, BeInCrypto: Anthropic’s $2 Trillion IPO Dream Meets a $1.5 Trillion Reality Check, CEO Today: Anthropic IPO Valuation Expectations Cool as Investors Weigh Growth, Seeking Alpha: Anthropic investors discuss $1.5T valuation, $500B below prior expectations - report, The Globe and Mail: Investors reportedly temper Anthropic IPO valuation expectations over revenue growth slowdown, Firstpost: Anthropic’s $2 trillion IPO price too high? Investors weigh lower valuation: Report, 조선일보: Anthropic's Valuation Cut to $1.5 Trillion as Revenue Growth Slows, Crain's New York: Anthropic in discussions with NYC comptroller after call to delay IPO, Arise News: Anthropic Faces Lower IPO Valuation Expectations As Investors Question Growth Momentum, ET Enterprise AI: New York City pension fund asks Anthropic to delay IPO

    After 24 h: reverted. After 7 days: reverted.

Written by AI from the linked news sources and checked automatically, not by a person.

Other markets in “IPOs before 2027?”

Questions about this market

What are the odds for “Anthropic IPO before 2027”?

On 31 Oct 2026, Polymarket traders priced Yes at 90%, which means they saw about a 90 in 100 chance. That was up 8 points over the previous 7 days. The live price is shown in the chart at the top of this page.

Why did the odds move recently?

The latest explained move was on 26 Oct 2026, from 80% to 96%: Anthropic Files IPO Prospectus. The probability of an Anthropic IPO before 2027 rose after news outlets reported that the company filed its IPO prospectus and S-1 paperwork. Every big move is listed under “Price jumps explained” (this one is number 3).

Do big jumps in this market usually hold?

Of the 3 big jumps old enough to check, 2 held after 24 hours (kept at least 70% of the move). The rest partly or fully reverted.

How does this market resolve?

This market will resolve to "Yes" if the listed company completes an Initial Public Offering (IPO) by December 31, 2026, 11:59 PM ET, as confirmed by official company announcements or credible news sources. The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange. The full Polymarket rules are at the bottom of this page.

When does this market end?

Polymarket lists 1 Jan 2027 as the end date. It can settle earlier or later if the rules say so, for example when an official result comes in.

Can I bet on this market on predictionwave?

No. predictionwave only explains the odds. The market itself runs on Polymarket, and trading there is not allowed in every country.

How this market resolves (Polymarket rules)

This market will resolve to "Yes" if the listed company completes an Initial Public Offering (IPO) by December 31, 2026, 11:59 PM ET, as confirmed by official company announcements or credible news sources. The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange. If the listed company merges with another entity, is acquired, or ceases to exist before the market resolves, the market will also resolve to "No". This market will resolve early if the listed company completes an IPO by December 31, 2026, 11:59 PM ET. The resolution source for this market is a consensus of credible reporting.