
Yes is at 2.6%, down 7.4 points from 10% when the market opened on 26 Aug 2026.
Across the 60 daily closes on record from 26 Aug 2026 to 28 Oct 2026 (5 days in that span have no close), the highest close was 18% on 27 Aug 2026 and the lowest 1.6% on 29 Sep 2026. A week before that last close Yes was at 2.9%; a month before, 3%. Its largest one-day move was 9.5 points up, to 17% on 2 Sep 2026.
It is one of 7 markets under “Anthropic IPO closing market cap above ___ ?”.
$427.18 traded in the last 24 hours. The order book holds $3.52K, with a 3.0% gap between the best bid and the best ask. Across the latest 23 trades, $8.97 bought Yes and $204.82 bought No.
The largest Yes position is xtxpleasecallme with 111 shares; the largest No position is balthazar with 205.
Trading closes on 1 Jan 2028.
Polymarket prices as of Oct 28, 10:42 PM UTC
Daily closes of the Yes price, Polymarket CLOB, 60 points, 26 Aug 2026 – 28 Oct 2026, chart shows 0%–25%
| Observed | Yes price |
|---|---|
| 26 Aug 2026 | 10.0% |
| 28 Oct 2026 | 2.6% |
The ten largest positions on Polymarket's public holder list.
| Trader | Outcome | Shares |
|---|---|---|
| balthazar | No | 204.61 |
| xtxpleasecallme | Yes | 111.3 |
| acal | Yes | 100 |
This market will resolve to "Yes" if the official closing price for Anthropic's market capitalization on its first trading day is above the value specified in the title. Otherwise, it will resolve to "No". If no IPO occurs by December 31, 2027, 11:59 PM ET, this market will resolve to "No". Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day. Resolution will be based on the primary exchange's official listing page. In the event that the relevant figure is not displayed, another reliable source will be used. In the event of an interruption in the course of the normal trading session on Anthropic’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Official listing: polymarket.com/event/anthropic-ipo-closing-market-cap-above
| VonVonagh |
| Yes |
| 46 |
| BAO95889 | No | 27.63 |
| S888 | No | 25 |
| Olka | Yes | 24.36 |
| yueyueyn | No | 20 |
| fubar9 | No | 10 |
| pppnn | Yes | 4 |
Open a trader’s name to inspect the wallet’s available P&L, positions and recorded trades, with source dates and coverage. A large position alone does not establish a winning track record.
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