Anthropic's market cap be between $1.25T and $1.5T at market close on IPO day priced at 11.5% on Polymarket, up 5.2 points, on $216K traded

Anthropic valuation band gains ground

A Polymarket contract on whether Anthropic’s market capitalization will be between $1.25T and $1.5T at market close on IPO day was priced at 11.5%, up 5.2 percentage points, with $216K traded, according to PredictionBubbles’ reported market snapshot.

The summary accompanying the Oct. 29, 2026 update places the contract among the upward-moving finance markets on PredictionBubbles’ movers board. The increase represents a higher market-implied probability for that specific valuation range—not a forecast of Anthropic’s overall valuation.

Reading the snapshot

According to PredictionBubbles, the board measures probability-point changes over 24 hours and refreshes every 15 minutes, using prices from Polymarket and Kalshi. Trading volume provides context but does not affect a market’s position in the movement rankings.

There is a timestamp distinction in the supplied material: the summary references an Oct. 29, 10:55 UTC crawl, while the source page records venue data from 29 Oct 2026, 10:37 UTC. The supplied page text explains the ranking methodology but does not reproduce the Anthropic contract’s individual listing.

The material identifies no company announcement or other catalyst behind the move. It also provides no contract-specific order-book depth or detailed settlement rules, limiting what can be inferred from the probability change and reported turnover alone.

What it means for prediction markets

• The range remains a minority-priced outcome. An 11.5% price is higher than before, but the contract is still priced well below 50%.
• The move concerns one valuation band. It does not establish whether traders broadly raised or lowered their expectations for Anthropic’s IPO-day market capitalization.
• Turnover is not liquidity. The reported $216K traded adds context, but without order-book depth it cannot establish how readily additional trades could move the price.
• Timing matters. The crawl and venue-data timestamps should remain distinct when comparing this snapshot with subsequent prices.