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Finance·AI

In which month will Anthropic IPO?

icon for In which month will Anthropic IPO?
Finance·AI

In which month will Anthropic IPO?

October 2026 69%

September 2026 20%

November 2026 9%

January 2027 1.6%

Polymarket
NEW

$25,578 Vol.

October 2026 69%

September 2026 20%

November 2026 9%

January 2027 1.6%

Polymarket
NEW

$25,578 Vol.

September 2026

$3,799 Vol.

20%

October 2026

$4,670 Vol.

69%

November 2026

$1,220 Vol.

9%

December 2026

$1,121 Vol.

1%

January 2027

$960 Vol.

2%

February 2027

$960 Vol.

1%

March 2027

$999 Vol.

1%

April 2027

$980 Vol.

1%

May 2027

$1,030 Vol.

1%

June 2027

$1,131 Vol.

1%

July 2027

$980 Vol.

1%

August 2027

$980 Vol.

1%

September 2027

$980 Vol.

1%

October 2027

$960 Vol.

1%

November 2027

$980 Vol.

1%

December 2027

$980 Vol.

1%

No IPO before 2028

$2,845 Vol.

1%

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.Anthropic’s confidential S-1 filing with the SEC on June 1, 2026, remains the dominant catalyst behind trader consensus favoring an October 2026 IPO at 68.5% implied probability. The filing followed a $65 billion Series H round that valued the Claude developer at $965 billion post-money, reflecting rapid revenue growth to a roughly $47 billion annualized run rate and positioning the company ahead of OpenAI in private-market rankings. Analysts and reports continue to cite typical post-filing timelines of three to five months for a fall window, contingent on SEC review completion and prevailing market conditions. September 2026 at 20% and November at 9% capture the narrower range of possible acceleration or modest delay. No major new regulatory, competitive, or financial developments have shifted these probabilities in recent weeks, though earnings momentum and broader AI-sector sentiment remain key swing factors for the final listing date.

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.
Volume
$25,578
End Date
Dec 31, 2027
Market Opened
Aug 19, 2026, 9:36 AM ET

Resolver

0x69c47De9D...
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.
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.Anthropic’s confidential S-1 filing with the SEC on June 1, 2026, remains the dominant catalyst behind trader consensus favoring an October 2026 IPO at 68.5% implied probability. The filing followed a $65 billion Series H round that valued the Claude developer at $965 billion post-money, reflecting rapid revenue growth to a roughly $47 billion annualized run rate and positioning the company ahead of OpenAI in private-market rankings. Analysts and reports continue to cite typical post-filing timelines of three to five months for a fall window, contingent on SEC review completion and prevailing market conditions. September 2026 at 20% and November at 9% capture the narrower range of possible acceleration or modest delay. No major new regulatory, competitive, or financial developments have shifted these probabilities in recent weeks, though earnings momentum and broader AI-sector sentiment remain key swing factors for the final listing date.

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.
Volume
$25,578
End Date
Dec 31, 2027
Market Opened
Aug 19, 2026, 9:36 AM ET

Resolver

0x69c47De9D...
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.

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Frequently Asked Questions

"In which month will Anthropic IPO?" is a prediction market on Polymarket with 17 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "October 2026" at 69%, followed by "September 2026" at 20%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 69¢ implies that the market collectively assigns a 69% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "In which month will Anthropic IPO?" has generated $25.6K in total trading volume since the market launched on Aug 19, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "In which month will Anthropic IPO?," browse the 17 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "In which month will Anthropic IPO?" is "October 2026" at 69%, meaning the market assigns a 69% chance to that outcome. The next closest outcome is "September 2026" at 20%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "In which month will Anthropic IPO?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.