Will Anthropic's initial public offering occur in November 2026 (ET)?
Yes at 82% on 30 Oct 2026, up 18 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 Anthropic's initial public offering will occur in November 2026. The market resolves based on the calendar month in ET when Anthropic shares officially begin regular-way trading on a public securities exchange.
Anthropic has recently released its IPO filings, revealing substantial revenue alongside a large net loss, as well as unique existential risk disclosures. Reports indicate that the company plans to launch its IPO marketing during the week of November 9.
Analysts and commentators have discussed various valuations for the offering, including estimates around $1.475 trillion, while potential investors weigh the risks and mechanics of the upcoming public debut.
Sources: Bloomberg Law News: Anthropic IPO Disclosure of ‘Existential’ AI Risk Sets Standard, Forbes: Anthropic’s IPO Date Could Cost Its Employees A Year Of Tax Life, Haberler.com: Striking warning in the IPO filing from Anthropic, the maker of Claude: AI could pose an existential risk to humanity, KQED: Real Estate, Climate and Wild Parties? Here’s How Anthropic’s IPO Could Affect the Bay Area, The Coin Republic: Anthropic IPO Filing Shows Revenue Surge and $80.7B Net Loss, The Motley Fool: Anthropic IPO: How to Buy Shares and What to Expect on Day 1, RS Web Solutions: Anthropic Plans IPO Marketing Launch Week of November 9, The New York Times: Opinion | The Open Secret Buried in Anthropic’s 300-Page I.P.O. Filing, 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, Univest: Anthropic IPO Valuation: Damodaran Says $1.475 Trillion, Yahoo Finance: The Biggest Risk to Anthropic Stock Is the Company Itself, CNBC: The big questions remaining after Anthropic’s blockbuster IPO prospectus, Techloy: Anthropic IPO Date, iPhone Duo Price and iOS 27.2, Acorns: How to Invest in Anthropic: IPO Date and Ticker
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 for IPO
The chance of Anthropic going public in November 2026 increased after reports that the company filed for its initial public offering. Multiple news sources announced that Anthropic submitted its IPO paperwork ahead of an expected stock market debut.
Sources: WBUR: The first AI mega-IPO is here: Anthropic wants to go public, NBC Palm Springs: Anthropic Files IPO Paperwork Ahead of Expected Stock Market Debut, Forbes: Anthropic Files For IPO: Here’s What We Learned
After 24 h: held. After 7 days: too early.
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19 Oct 2026
Anthropic Pledges Stake to Fund Ahead of IPO
The probability that Anthropic will hold its initial public offering in November 2026 increased after reports emerged that the company pledged five percent of its stock to a public benefit fund ahead of its IPO. Multiple news outlets noted that this governance move comes as the firm prepares to go public.
Sources: The New Indian Express: Anthropic commits 5% of its stock to a new 'public benefit' fund, Seoul Economic Daily: Anthropic Pledges 5% Stake to Public Benefit Fund Before IPO, Livemint: Ahead of IPO, AI firm Anthropic announces a new ‘public benefit fund’ to commit 5% of its stocks: What we know, The News International: Anthropic pledges 5% of shares to new public benefit fund ahead of IPO to shape AI goals, Invezz: Anthropic pledges 5% of its shares before IPO: who really gets the money?
After 24 h: partly reverted. After 7 days: partly reverted.
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14 Oct 2026
Anthropic IPO Rumors Push November Odds Higher
The chance of Anthropic having an initial public offering in November 2026 increased after reports surfaced that the company is sharing its financial results with investors. Multiple articles noted that Anthropic is preparing to reveal its Q3 financials ahead of an expected November IPO.
Sources: Quartz: Anthropic Q3 financials investor meeting ahead of IPO, TradingView: Anthropic to share Q3 financials with investors amid growing AI valuation concerns, Crypto Briefing: Anthropic reportedly holding institutional investor day tomorrow ahead of potential IPO, Crypto Briefing: Anthropic to reveal Q3 financials ahead of expected November IPO: CNBC, BigGo Finance: Anthropic to Unveil First Quarterly Results Ahead of IPO, Testing $2 Trillion Valuation
After 24 h: held. After 7 days: held.
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2 Oct 2026
Anthropic IPO Targets November Timing
The likelihood of Anthropic's initial public offering occurring in November 2026 increased after reports indicated the company is targeting a pre-Thanksgiving IPO. Articles specifically noted that the offering may arrive in November.
Sources: Yahoo Finance: Anthropic Targets $2 Trillion IPO Before Thanksgiving. Here’s Why $518 Billion May Be the Number That Matters Most., Quartz: Anthropic is targeting a pre-Thanksgiving IPO at up to a $2 trillion valuation, 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 “In which month will Anthropic IPO?”
Questions about this market
What are the odds for “Will Anthropic's initial public offering occur in November 2026 (ET)”?
On 30 Oct 2026, Polymarket traders priced Yes at 82%, which means they saw about a 82 in 100 chance. That was up 18 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 62% to 91%: Anthropic Files for IPO. The chance of Anthropic going public in November 2026 increased after reports that the company filed for its initial public offering. Multiple news sources announced that Anthropic submitted its IPO paperwork ahead of an expected stock market debut. 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, 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 based on the calendar month (ET) in which Anthropic's initial public offering (IPO) occurs. The resolving month will be the calendar month (ET) containing the first day on which Anthropic shares are listed and open for regular-way trading on a public securities exchange. The full Polymarket rules are at the bottom of this page.
When does this market end?
Polymarket lists 1 Jan 2028 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 based on the calendar month (ET) in which Anthropic's initial public offering (IPO) occurs. The resolving month will be the calendar month (ET) containing the first day on which Anthropic shares are listed and open for regular-way trading on a public securities exchange. An IPO refers to Anthropic shares becoming listed and open for trading on a public securities exchange, whether through a traditional initial public offering or a direct listing. If Anthropic goes public through a merger, acquisition, or absorption by an entity that is already publicly traded, including a special purpose acquisition company, this market will resolve to "No IPO before 2028". If no IPO occurs by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO before 2028". Announcements, filings, or scheduling of an IPO will not suffice; this market will resolve after public trading has begun. Resolution will be based on information from the primary exchange.