Anthropic's market cap be between $1.25T and $1.5T at market close on IPO day priced at 14.3% on Polymarket, up 9.1 points, on $182K traded
PredictionBubbles' finance board lists the Anthropic IPO-day market-cap band among its largest upward finance moves, in a fundraising/business category distinct from the…
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Anthropic’s prospects of closing its IPO day with a market capitalization between $1.25T and $1.5T were priced at 14.3% on Polymarket as of Oct 23, 2026 · 2:54 PM ET. The contract was up 9.1 percentage points over 24 hours, with $182K in total traded volume.
According to PredictionBubbles, the valuation-band contract ranked among the largest upward moves on its finance board. The question sits in a fundraising/business category, rather than the macroeconomic subjects that also populate the tracker.
A valuation band, not an IPO forecast
The contract concerns Anthropic’s market capitalization at the close of trading on its IPO day. Its 14.3% price represents the market-implied probability of that specific range—not the probability of an IPO itself or a forecast of a single valuation.
The supplied material does not identify a catalyst for the repricing, an IPO date or the contract’s detailed resolution rules. The move therefore establishes a shift in the price of this outcome, but does not explain why traders changed their assessment.
Movement and volume measure different things
According to PredictionBubbles, its movement rankings use absolute probability changes over the previous 24 hours, while its volume rankings use total trading activity. The $182K figure is therefore not a measure of money traded during the latest 24-hour move.
PredictionBubbles says its finance board currently covers 198 open markets: 25 on Kalshi and 173 on Polymarket. The aggregator refreshes its data every 15 minutes, although trading on the underlying venues is continuous.
What it means for prediction markets
The outcome remains a minority-priced scenario: Even after a 9.1-point rise, the $1.25T–$1.5T closing valuation band stood at 14.3%.
The endpoint is specific: This contract targets market capitalization at the IPO-day close, not the offering valuation or an intraday level.
Activity is not an explanation: The $182K total volume provides trading context, but the supplied reporting does not establish what drove the move.
Comparisons require matching terms: PredictionBubbles cautions that related contracts can differ in wording, deadlines and resolution rules; their prices are not necessarily directly comparable.