October 31, 2026

Full rules

As written on Polymarket for “Will Anthropic IPO by October 31, 2026?”.

1. §1This 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.
2. §2Otherwise, this market will resolve to "No."
3. §3If Anthropic is acquired by another company that is already public, this market will immediately resolve to "No."
4. §4The 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.