Anthropic’s confidential S-1 filing with the SEC on June 1, 2026, combined with recent investor briefings and preparations for a public filing as early as late August, has anchored trader consensus around an October 2026 Nasdaq listing at 69.5% implied probability. Explosive revenue growth—reaching $11.5 billion in the most recent quarter and a $65 billion annualized run rate—alongside a $965 billion private valuation after its Series H round, underscores the company’s momentum in the large language model space ahead of rival OpenAI. With lead underwriters Goldman Sachs, JPMorgan, and Morgan Stanley in place, the institutional roadshow expected in September represents the key near-term catalyst that could lock in the timing before broader market or regulatory factors intervene.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOctober 2026 70%
September 2026 14%
December 2026 4.5%
November 2026 3.9%
$81,948 Vol.
$81,948 Vol.
September 2026
14%
October 2026
70%
November 2026
4%
December 2026
5%
January 2027
<1%
February 2027
<1%
March 2027
<1%
April 2027
<1%
May 2027
<1%
June 2027
<1%
July 2027
<1%
August 2027
<1%
September 2027
<1%
October 2027
<1%
November 2027
<1%
December 2027
<1%
No IPO before 2028
1%
October 2026 70%
September 2026 14%
December 2026 4.5%
November 2026 3.9%
$81,948 Vol.
$81,948 Vol.
September 2026
14%
October 2026
70%
November 2026
4%
December 2026
5%
January 2027
<1%
February 2027
<1%
March 2027
<1%
April 2027
<1%
May 2027
<1%
June 2027
<1%
July 2027
<1%
August 2027
<1%
September 2027
<1%
October 2027
<1%
November 2027
<1%
December 2027
<1%
No IPO before 2028
1%
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.
Market Opened: Aug 19, 2026, 9:36 AM ET
Resolver
0x69c47De9D...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.
Resolver
0x69c47De9D...Anthropic’s confidential S-1 filing with the SEC on June 1, 2026, combined with recent investor briefings and preparations for a public filing as early as late August, has anchored trader consensus around an October 2026 Nasdaq listing at 69.5% implied probability. Explosive revenue growth—reaching $11.5 billion in the most recent quarter and a $65 billion annualized run rate—alongside a $965 billion private valuation after its Series H round, underscores the company’s momentum in the large language model space ahead of rival OpenAI. With lead underwriters Goldman Sachs, JPMorgan, and Morgan Stanley in place, the institutional roadshow expected in September represents the key near-term catalyst that could lock in the timing before broader market or regulatory factors intervene.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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