Anthropic IPO Closing Market Cap: how this market works

What you need to know

This market is asking two things at once: will Anthropic go public before the end of 2027, and if it does, how big will the company be when it starts trading? Anthropic is one of the largest AI companies in the world, known for building the Claude AI assistant. A 'market cap' is simply the total dollar value the stock market assigns to a company on day one of trading. Yes means it goes public and lands in a specific size bracket. No means it either never IPOs by the deadline or lands in a different bracket. The market settles based on Anthropic's total company value at the closing price on its very first day of stock trading. That value is calculated by multiplying the share price at market close by the total number of shares. If Anthropic has not held an IPO by December 31, 2027 at 11:59 PM Eastern Time, it resolves as 'No IPO by December 31, 2027.' One edge case worth knowing: if trading is cut short on opening day due to a technical halt or similar event, the official closing price from that shortened session still counts. No relevant recent news was provided for this market. The kind of developments worth watching for would include any official announcement from Anthropic about IPO plans, new funding rounds that might delay or accelerate a public offering, major regulatory changes affecting AI companies, or broader stock market conditions that tend to open or close the IPO window for large tech firms. This market is genuinely hard to call on multiple levels. First, there is no guarantee Anthropic goes public at all by 2027. Private AI companies have been raising huge sums without needing stock market listings, which reduces the pressure to IPO. Second, even if it does go public, valuing a fast-moving AI company is notoriously difficult: the AI landscape could look completely different in two years. The spread odds across many brackets reflect that uncertainty directly. The timeline, the valuation, and even whether an IPO happens are all genuinely open questions.

The odds right now

• $1.25–$1.5T+2.0 pts (1w)17%
• $2.25–$2.5T-1.0 pts (1w)17%
• $1.5–$1.75T+0.6 pts (1w)15%
• <$1.25T-3.0 pts (1w)13%
• $1.75–$2.0T13%
• $2.0–$2.25T+0.4 pts (1w)12%
• $2.5–$2.75T-2.6 pts (1w)8%
• $3.0T++1.3 pts (1w)5%
• No IPO by December 31, 2027-0.1 pts (1w)4%
• $2.75–$3.0T+1.1 pts (1w)3%

Price history

How this resolves

Resolves December 31, 2027

This market will resolve based on Anthropic's market capitalization at the closing price on its first day of trading. If no IPO occurs by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2027". Read the full resolution rules on the live market page.

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