Anthropic's market cap be between $2.0T and $2.25T at market close on IPO day priced at 22.6% on Polymarket, up 3.6 points, on $421K traded

Anthropic valuation band moves higher

A Polymarket contract asking whether Anthropic’s market capitalization will be between $2.0T and $2.25T at market close on IPO day was priced at 22.6%, up 3.6 probability points, with $421K traded, according to PredictionBubbles’ movers listing.

The snapshot was reported on Oct 19, 2026, at 10:54 PM ET. PredictionBubbles placed the contract among upward finance moves in its fundraising/business category. The increase reflects a higher market-implied probability for that specific valuation range, not a broad estimate of Anthropic’s future value.

What the board measures

According to predictionbubbles.net, the board compares prices over 24 hours and updates every 15 minutes using data from Polymarket and Kalshi. The supplied page records a venue-data refresh at 20 Oct 2026, 02:34 UTC.

Its ranking covers 1,991 markets with lifespans longer than 14 days and excludes same-week fixtures. Only open contracts with a valid 24-hour price comparison qualify, and the ranking depends on the size of the probability-point change—not trading volume or liquidity.

The supplied material does not identify a company announcement, fundraising development or other catalyst behind Anthropic’s move. It also does not provide the contract’s detailed settlement rules or specify the measurement period for the reported $421K in trading.

What it means for prediction markets

• The outcome is narrowly defined: The contract concerns a $2.0T–$2.25T market capitalization at the close of IPO day, rather than whether Anthropic exceeds a single valuation threshold.
• The change is in probability points: The 3.6-point rise describes a 24-hour repricing, not a 3.6% relative increase or a change in the company’s valuation.
• Volume is context, not proof of depth: The $421K traded figure does not establish current liquidity or explain what drove the price change.
• The catalyst remains unverified: The listing shows traders assigning a higher probability to the band, but the provided reporting does not explain why.