Anthropic IPO Closing Market Cap
29%$1.75–$2.0T
- $1.75–$2.0T29%▲ 3
- $2.0–$2.25T19%▼ 1
- $1.5–$1.75T18%▲ 1
7 more
- $2.25–$2.5T10%▲ 1
- $1.25–$1.5T9%▼ 5
- <$1.25T5%▲ 2
- $3.0T+3%
- $2.5–$2.75T3%
- No IPO by December 31, 20272%
- $2.75–$3.0T2%▼ 1
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When will OpenAI officially announce an IPO?
The odds
May 13, 2027even chance by
- Before Nov 1, 20261%
- Before Dec 1, 20263%
- Before Jan 1, 20275%▲ 1
- Before Feb 1, 202711%▲ 1
- Before Mar 1, 202722%
- Before Apr 1, 202727%▼ 1
- Before May 1, 202747%
- Before Jun 1, 202755%
How the odds have moved
Before Feb 1, 2027: 13% on Oct 20, 11% now.
Each outcome's chance over time on Kalshi. The dots along the bottom are headlines about its subject: point at one to read it.
Every outcome
| Outcome | Chance | Day | Bid | Ask | Pays | Contracts |
|---|---|---|---|---|---|---|
| Before Sep 1, 2026 | 1% | $100.00 | 319.4K | |||
| Before Oct 1, 2026 | 1% | $100.00 | 137.2K | |||
| Before Nov 1, 2026 | 1% | 1¢ | $100.00 | 93.3K | ||
| Before Dec 1, 2026 | 3% | 2¢ | 4¢ | $25.00 | 97.9K | |
| Before Jan 1, 2027 | 5% | ▲ 1 | 3¢ | 6¢ | $16.67 | 150.3K |
| Before Feb 1, 2027 | 11% | ▲ 1 | 9¢ | 12¢ | $8.33 | 45.6K |
| Before Mar 1, 2027 | 22% | 21¢ | 22¢ | $4.55 | 30.5K | |
| Before Apr 1, 2027 | 27% | ▼ 1 | 26¢ | 27¢ | $3.70 | 38.5K |
| Before May 1, 2027 | 47% | 46¢ | 48¢ | $2.08 | 23.5K | |
| Before Jun 1, 2027 | 55% | 54¢ | 56¢ | $1.79 | 33.8K |
"Pays" is what a $1 stake returns if that outcome happens, at the price shown (before any fees). Bid and ask are the best prices to sell and buy "Yes".
The news: OpenAI, ChatGPT
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OpenAI Auto Enabling Creative Enhancements In ChatGPT AdsOpenAI sent out emails to advertisers, including me, telling me they have automatically enabled creative enhancements for my ChatGPT Ads. The email says this is starting on October 30, 2026 and I can opt out of creative enhancements or… -
Arkansas AG Tim Griffin Sues OpenAI Over ChatGPT Safety ClaimsArkansas Attorney General Tim Griffin has joined eight other states in filing a lawsuit against OpenAI, the creator of ChatGPT. The suit was filed on Oct. 14 and alleges that the tech giant misled consumers, including minors, about the… -
Inside OpenAI’s pitch to brands for ads alongside AI-generated images in ChatGPTAd Age Inside OpenAIâs pitch to brands for ads alongside AI-generated images in ChatGPT New image ads are just one of the updates on ChatGPT, as the large language model is giving brands more room to play. -
OpenAI Health ChatGPT: Revolution or Risky Business?OpenAI Health ChatGPT is a new feature for U.S. users that allows you to securely connect your personal medical records and data from Apple Health directly to the ChatGPT AI chatbot. The goal is to provide personalized health insights… -
OpenAI adds real-time collaboration to ChatGPT Slides, introduces other new featuresThe new ChatGPT Slides features aim to make teamwork and presentation editing simpler. Users can share their decks with others and make changes together in real time. They can also add comments and discuss feedback. ChatGPT and OpenAI’s AI… -
Former top OpenAI employees raises capital for defense startup valued at $1.5BCNBC Former top OpenAI employees raises capital for defense startup valued at $1.5B -
OpenAI CEO Sam Altman wins dismissal of sister's lawsuitOpenAI chief executive Sam Altman has won a dismissal of a lawsuit brought against him by his sister that claimed he had sexually abused her more than two decades ago. A US district judge dismissed the case after Ann Altman had refused to… - OpenAI Starts ChatGPT Slides Rollout With Live Team EditingEligible Pro, Business and Enterprise users with Space access can create decks from conversations, files or outlines and export them from the web. OpenAI began rolling out ChatGPT Slides on Oct. 16, bringing presentation creation and live…
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OpenAI faces lawsuit after Tumbler Ridge shooter uses ChatGPT for tactical adviceThis incident has led to a civil lawsuit against OpenAI and its CEO, Sam Altman, with the victims’ families and the government of British Columbia claiming that the company failed to act despite being aware of the dangerous conversations… -
Ex-OpenAI employee DENIED bail for allegedly PLANTING recording deviceFox News Ex-OpenAI employee DENIED bail for allegedly PLANTING recording device A federal judge denied bail for a former OpenAI engineer charged with planting a recording device inside an executive conference room. Prosecutors say the… -
Hugging Face CEO warns that Netflix's OpenAI hack documentary isn't accurateBuy One Founder Summit Ticket, Get a Second for Free. Register now. Before you share the Netflix documentary “AI Gone Rogue” with family or friends to help them understand why the AI industry freaked out so badly that leaders called for a… -
Former OpenAI exec has quietly built $1.5 billion startup, betting AI can revive U.S. manufacturingOpenAI's former research chief has been quietly building a startup that aims to bring manufacturing back to the U.S. using AI. Bob McGrew's newest company, Arda, has raised $230 million at a $1.5 billion valuation, the company told CNBC in…
Related markets
All ipos & deals ›Anthropic IPO by __?
Nov 27, 2026even chance by
- October 31, 2026<1%
- November 15, 20262%▲ 1
- November 30, 202665%▲ 7
2 more
- December 15, 202674%
- December 31, 202678%▼ 1
What will OpenAI's IPO valuation be?
$1.47Tmedian
$750B$2.75T
Median $1.47TMiddle half $986.92B – $1.82T
Largest IPO by market cap in 2026?
65%SpaceX
- SpaceX65%▼ 4
- Anthropic29%▲ 5
- OpenAI<1%
9 more
- Stripe<1%
- ByteDance<1%
- Databricks<1%
- SHEIN<1%
- Waymo<1%
- Revolut<1%
- Discord<1%
- Perplexity AI<1%
- Kraken<1%
What will Anthropic's public ticker be?
50%$ANT
- $ANT50%▼ 21
- $ANTH27%▲ 11
- $AAI8%▲ 4
6 more
- $ANAI5%▲ 5
- $CLDE5%
- $APBC4%▼ 1
- $CLD1%
- $ARPC<1%
- $CLAU<1%
In which month will Anthropic IPO?
63%November 2026
- November 202663%▲ 5
- December 202616%▼ 3
- January 202711%
13 more
- April 20272%
- March 20272%
- February 20271%
- May 20271%
- No IPO before 20281%
- October 20261%▲ 1
- June 2027<1%
- July 2027<1%
- August 2027<1%
- September 2027<1%
- October 2027<1%
- November 2027<1%
- December 2027<1%
Odds are traders' prices on Kalshi, Polymarket, ForecastEx and Crypto.com, not forecasts by 4Search. Prices read from the venues 2 min ago. Prices may be delayed. Money traded on Kalshi and ForecastEx is estimated from contracts. Not betting or investment advice.
Prediction-market prices are what traders pay for each outcome on Kalshi, Polymarket, ForecastEx and Crypto.com, read as the market's implied chance. They are not forecasts by 4Search, can move fast and can be wrong; they are read every few minutes and may be delayed. Money traded on Kalshi and ForecastEx is estimated from contracts at their price. News comes from the 4Search index; prices of stocks, rates and coins from 4Search Finance. Nothing here is betting, financial or investment advice. Terms of use.