Will Anthropic IPO by November 30, 2026?
Yes at 88% on 29 Oct 2026, up 16 pts over the previous 7 days. 4 big jumps since 2 Oct 2026, listed below.
Data from Polymarket. Numbered dots are the jumps explained below.
Context
This prediction market asks whether AI company Anthropic will hold its initial public offering (IPO) and begin trading on a public securities exchange by November 30, 2026. The market resolves to "Yes" if shares are listed and open for trading by the deadline, and "No" otherwise.
Recent reports indicate that Anthropic has officially filed to go public, sparking widespread coverage and market speculation about its valuation and finances. Analysts and regulators are currently reviewing the newly arrived prospectus and S-1 filing ahead of the anticipated offering.
Key developments include plans to offer IPO shares to UK retail investors via RetailBook, as well as scrutiny from lawmakers regarding existential risks. The primary resolution sources will be official SEC filings, exchange confirmations, and company press releases.
Sources: Yahoo Finance: Anthropic’s IPO filing raises a costly question: Who can say no?, The New York Times: Who Stands to Gain From an Anthropic I.P.O., Spectrum News: Sen. Elizabeth Warren asks Anthropic CEO to address existential risks before IPO, Reuters: Breakingviews - COMMENTARY: Anthropic’s IPO is all about ignoring the future, Musings on Markets: The Anthropic Prospectus Arrives: My (but not the) IPO valuation!, Yahoo Finance: Anthropic to offer IPO shares to UK retail investors with RetailBook, CNBC: Anthropic filed to go public—what retail investors should weigh before its IPO, Reuters: Prediction market bets set the tone for Anthropic's much-awaited IPO, Bloomberg: Four Unanswered Questions From Anthropic’s IPO Filing, Built In: Anthropic IPO Filing: Valuation, Finances and Key Details, Malay Mail: Rivals, collapsing prices and rising bills: Anthropic’s record US$1t IPO bid faces big questions, Deep Quarry: Anthropic’s S-1: We’re not quite there yet, Livemint: Mint Explainer | Anthropic IPO proves profitable gen-AI is hard. India on the same boat too?, News Karnataka: Anthropic plans UK IPO share offer through RetailBook, The Economic Times: US Market: Anthropic IPO sparks betting frenzy on prediction markets
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
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26 Oct 2026
Anthropic Files IPO Prospectus
The probability of Anthropic holding an initial public offering increased after major news outlets reported that the company filed its IPO paperwork and prospectus. Articles from sources like The New York Times, CBC, and NBC News detailed the financial disclosures and upcoming stock market debut.
Sources: The New York Times: Anthropic’s I.P.O. Prospectus Spells Out a Future of Promise and Peril, Business Insider: Anthropic's S-1 paperwork reveals the stunning finances behind its meteoric rise ahead of its IPO, CBC: Anthropic files for potentially biggest IPO ever, even as CEO warns of AI risks to humanity, NBC News: 6 key takeaways from Anthropic’s IPO filing, NBC Palm Springs: Anthropic Files IPO Paperwork Ahead of Expected Stock Market Debut
After 24 h: held. After 7 days: too early.
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25 Oct 2026
Anthropic Revenue and IPO Reports
Reports highlighted that Anthropic reached $16.8 billion in third-quarter revenue ahead of a planned initial public offering. This financial news likely contributed to the increased probability of the company going public.
Sources: TOKENPOST: Anthropic’s Third-Quarter Revenue Reaches $16.8 Billion Ahead of Planned IPO
After 24 h: held. After 7 days: too early.
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19 Oct 2026
Anthropic Announces Public Benefit Fund Ahead of IPO
The probability of Anthropic holding an initial public offering increased after multiple news outlets reported that the company plans to establish a public benefit fund. Several articles noted that Anthropic pledged a portion of its shares to this initiative ahead of its upcoming IPO.
Sources: The New York Times: Anthropic’s I.P.O. Charity, Seoul Economic Daily: Anthropic Pledges 5% Stake to Public Benefit Fund Before IPO, The News International: Anthropic pledges 5% of shares to new public benefit fund ahead of IPO to shape AI goals
After 24 h: held. After 7 days: partly reverted.
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2 Oct 2026
Anthropic Reports Target Mid-November IPO Debut
The probability of Anthropic holding an initial public offering increased after reports emerged targeting a mid-November debut. Multiple sources indicated that the company is preparing for a November listing.
Sources: upi: Anthropic eyes November IPO, putting spotlight on S. Korea's SK Telecom, FindArticles: Anthropic Reportedly Targets Mid-November IPO Debut, Livemint: Anthropic IPO may come in November | Why its $2 trillion valuation is raising eyebrows
After 24 h: partly reverted. After 7 days: partly reverted.
Written by AI from the linked news sources and checked automatically, not by a person.
Other markets in “Anthropic IPO by __?”
Questions about this market
What are the odds for “Will Anthropic IPO by November 30, 2026”?
On 29 Oct 2026, Polymarket traders priced Yes at 88%, which means they saw about a 88 in 100 chance. That was up 16 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 58% to 92%: Anthropic Files IPO Prospectus. The probability of Anthropic holding an initial public offering increased after major news outlets reported that the company filed its IPO paperwork and prospectus. Every big move is listed under “Price jumps explained” (this one is number 4).
Do big jumps in this market usually hold?
Of the 4 big jumps old enough to check, 3 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 Anthropic shares are listed on a public securities exchange and open for trading by 11:59 PM ET on the listed date. Otherwise, this market will resolve to "No." If Anthropic is acquired by another company that is already public, this market will immediately resolve to "No." The full Polymarket rules are at the bottom of this page.
When does this market end?
Polymarket lists 1 Dec 2026 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 Anthropic shares are listed on a public securities exchange and open for trading by 11:59 PM ET on the listed date. Otherwise, this market will resolve to "No." If Anthropic is acquired by another company that is already public, this market will immediately resolve to "No." The primary resolution source for this market is official filings and announcements from Anthropic and the relevant securities exchange on which the shares are listed, including SEC filings (e.g., Form S-1, Form 8-A), exchange listing confirmations, and official press releases from Anthropic; however a consensus of credible reporting may also be used.