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Techcloses in 14mo

Will Anthropic or OpenAI IPO first?

This market will resolve to "Anthropic" if Anthropic completes an Initial Public Offering (IPO) before OpenAI completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. This market will resolve to "OpenAI" if OpenAI completes an Initial Public Offerin…

As of 28 October 2026, "Anthropic" leads at 97% implied probability (+0.4pp over the last 24h). The event has traded $449.8K in total ($4.5K in the last 24h) with $57.9K of liquidity across 1 market. Trading is due to close on 1 January 2028.

24h volume
$4.5K
Total volume
$449.8K
Liquidity
$57.9K
Markets
1
1 Jan 2028
sam altmanOpenAIBusinessIPOsIPOFinanceAIClaude 5OpenAI IPOAnthropic IPOAnthropic

Chart, demo trading & order book

MarketWill Anthropic or OpenAI IPO first?
Anthropic96.9¢
24h Chg+0.4pp
Mkt Vol$449.8K
live
Order bookAnthropic
Market tradeslive · 6s
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Markets and probabilities

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How to read

The percentage is the implied probability of the outcome, between 0% and 100%. For mutually-exclusive markets the sum trends to 100% (no vig). The ▲/▼ arrow shows the change over the selected window (1h/24h/7d/30d) in percentage points (pp). Click a market to see its top holders (with average entry price and position change) and the latest trades.