Anthropic's market cap be 1.8T or greater at market close on IPO day priced at 59.5% on Polymarket, down 10.5 points, on $294K traded

Polymarket traders priced a 59.5% probability that Anthropic’s market capitalization would reach at least $1.8 trillion at the close of its IPO day, according to the supplied market snapshot published Oct 25, 2026, at 12:24 AM ET. The contract was down 10.5 percentage points, with $294K traded.

A lower probability, without a fresh catalyst

The price still put the qualifying outcome above an even chance, despite the decline. The contract concerns Anthropic’s market capitalization at the end of its first trading day—not its valuation when the IPO is priced or its highest valuation during that session.

The accompanying news summary identified no significant new platform headline in the preceding 30 minutes. It therefore provides no fresh reported catalyst for the move. The material also does not establish when within the reporting window the repricing occurred.

Reading the market snapshot

According to predictionbubbles.net, its finance board reports probability changes over the preceding 24 hours and refreshes data every 15 minutes. It defines displayed volume as total traded volume where available, so the $294K figure should not be interpreted as turnover generated solely during the decline. The site also notes that trading on the underlying venues continues between its updates.

What it means for prediction markets

• The threshold and timing matter: The outcome hinges on a market capitalization of at least $1.8 trillion at the IPO-day close, rather than another valuation milestone.
• The move is not a confirmed news signal: The supplied news check offers no new headline explaining the 10.5-point decline.
• Volume and freshness require care: Total traded volume does not isolate activity behind the latest move, while a 15-minute refresh cycle means the displayed probability can lag trading.