300–400B

Full rules

As written on Polymarket for “Will Anthropic’s market cap be between $300B and $400B at market close on IPO day by December 31, 2027?”.

1. §1This market will resolve based on Anthropic's market capitalization at the closing price on its first day of trading.
2. §2If no IPO occurs by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2027".
3. §3Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency.
4. §4It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
5. §5If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
6. §6Resolution will be based on the primary exchange’s official listing page.
7. §7In the event that the relevant figure is not displayed, another reliable source will be used.
8. §8In the event of an interruption in the course of the normal trading session on Anthropic’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session.