Anthropic's market cap be between $1.75T and $2.0T at market close on IPO day priced at 33.0% on Polymarket, up 4.5 points, on $491K traded

A Polymarket contract on whether Anthropic’s market capitalization will fall between $1.75T and $2.0T at the close of its IPO day was priced at 33.0%, up 4.5 percentage points over 24 hours, with $491K traded, according to PredictionBubbles’ finance-board snapshot.

The listing appeared in the board’s Oct. 29, 07:40 UTC crawl. The price represents the market-implied probability of that specific valuation range—not an estimate of Anthropic’s overall value or the likelihood of an IPO.

A valuation bet within a broader finance board

PredictionBubbles’ finance page tracked 194 open markets: 177 on Polymarket and 17 on Kalshi. Its coverage spans interest-rate decisions, inflation, GDP, recession outcomes, and index and commodity levels, alongside the Anthropic contract.

For context, the board’s largest finance market by total traded volume at its latest refresh concerned whether there would be no Fed rate cuts in 2026. That Polymarket contract had $9.2M traded, according to PredictionBubbles.

Reading the snapshot

PredictionBubbles refreshes its data every 15 minutes, while trading on the underlying venues continues between updates. The 33.0% reading is therefore a timestamped observation rather than necessarily the latest executable price.

The board distinguishes cumulative trading volume from the probability change over the preceding 24 hours. The supplied material does not identify a catalyst for the Anthropic contract’s move or provide its detailed resolution rules.

What it means for prediction markets

• The outcome is narrowly defined: The contract concerns the $1.75T–$2.0T band at the IPO-day close, not simply whether Anthropic reaches a valuation threshold.
• Probability and volume measure different things: The 4.5-point rise reflects repricing over 24 hours; the $491K figure represents total reported trading, not trading during that period alone.
• Timing and rules remain important: The board updates every 15 minutes, and the supplied excerpt does not establish how the contract would handle valuation-boundary or settlement questions.