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In which month will Anthropic IPO odds

Polymarket traders make November 2026 the favorite for “In which month will Anthropic IPO” at 61% (−2.8 pts in the last 24 hours), ahead of December 2026 at 23%.

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Prices refresh every few minutes. Probabilities are not predictions or advice, and you can lose what you trade.

Probability over the last 30 days

The top 4 outcomes right now.

Sep 26Oct 26
November 2026December 2026January 2027March 2027

All 16 outcomes and their odds

Probability is the share price. Decimal odds show what $1 returns if that outcome wins, before fees. American odds show the same price as a moneyline: +150 pays $150 on a $100 stake, −200 needs $200 to win $100.

Odds as of

Show all 16 outcomes

Where this market stands

“In which month will Anthropic IPO” is a Polymarket event with 16 open outcomes. November 2026 leads at 61%, ahead of December 2026 at 23%. November 2026 is down 2.8 points over the last 24 hours and down 3.9 points over the past week. Traders have put $449K through the event so far, including $6,681 in the last 24 hours, and it is scheduled to end on January 1, 2028.

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How this market resolves

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.

Rules are written by Polymarket and shown as published. WhaleSays does not settle markets.

Common questions

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Who is the favorite in In which month will Anthropic IPO?
November 2026 is the favorite at 61%, followed by December 2026 at 23% and January 2027 at 6%. Prices are the market's implied probabilities and update as traders buy and sell.
Will Anthropic's initial public offering occur in November 2026 (ET)?
Polymarket traders give November 2026 a 61% chance, which is decimal odds of 1.63 (American −159): $1 staked on November 2026 returns about $1.63 if it resolves Yes, before fees. In the last 24 hours the price moved down 2.8 points.

Related odds

Anthropic IPO Closing Market Cap

  • $1.75–$2.0T30%
  • $2.0–$2.25T19%
  • $1.5–$1.75T19%

$2.4M traded · $100K in 24h

What will Anthropic's IPO valuation be?

  • $1.50–$1.75T60%
  • $1.75–$2.00T25%
  • $2.00–$2.25T4%

$225K traded · $10K in 24h

Will Anthropic’s valuation hit __ by December 31?

  • ↑$1.5T87%
  • ↑$1.75T78%
  • ↑$2.0T59%

$6.1M traded · $27K in 24h