Anthropic's market cap be between $2.0T and $2.25T at market close on IPO day priced at 17.7% on Polymarket, down 5.9 points, on $457K traded

Polymarket traders priced a 17.7% chance that Anthropic’s market capitalization would finish between $2.0T and $2.25T at market close on its IPO day, according to the supplied market update published Oct 22, 2026 · 10:24 PM ET. The probability fell 5.9 points, with $457K traded.

Repricing without an identified catalyst

The accompanying summary identified no significant new platform headline in the preceding 30 minutes. It said the news search had resurfaced previously handled material rather than a fresh development. The supplied reporting therefore does not establish a news catalyst for the decline.

The contract concerns a specific valuation interval at the end of Anthropic’s first trading day. A lower probability for that interval alone does not show whether traders shifted toward a valuation below $2.0T or above $2.25T.

How the move is measured

According to predictionbubbles.net, its movers board compares market-implied probabilities over 24 hours, using percentage-point changes rather than relative percentage changes. It refreshes every 15 minutes using prices from Polymarket and Kalshi; the supplied page records a venue-data snapshot at 23 Oct 2026, 02:10 UTC.

Predictionbubbles.net ranks moves by their absolute size, without allowing volume or liquidity to affect the ordering. The $457K traded provides activity context for the Anthropic contract, but the supplied material does not establish order-book depth or explain which trades drove the repricing.

What it means for prediction markets

• The signal is interval-specific: The 17.7% price reflects the likelihood assigned to the $2.0T–$2.25T closing range, not to an IPO occurring or to Anthropic’s broader prospects.
• Direction remains unresolved: Without prices for other valuation ranges, the 5.9-point decline cannot be read as an unambiguous shift toward a lower valuation.
• Causation is unverified: No fresh catalyst was identified in the supplied summary, and reported trading volume alone does not explain the move.