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Finance · IPOs

What will OpenAI's IPO valuation be?

Live

$14.9K
$179.0K
21
$42.6K
$82.6K

The leading questions, over time

Chance of Yes for the 4 questions with the highest chance now.

  • <$1T29.6%
  • $1.5T–$1.75T18.0%
  • $1.25T–$1.5T17.6%
  • $1.75T–$2.0T15.5%
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Order-book mid of each question’s Yes side; each line ends at the live price shown above. Times are UTC.

Event facts

Category
Finance · IPOs
Structure
Exactly one question can win
Fee
No trading fee
UMA bond
$500
Resolver
Neg-risk UMA CTF Adapter (sports)
Questions
8 open
Fills, last 24 h
112
Polymarket-reported 24h volume
56,003 shares
  1. Created
  2. First trade

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How does this event settle?

Rules, as written by Polymarket

This market will resolve according to the implied equity valuation of OpenAI at its initial public offering (IPO) price. The IPO valuation is defined as the final IPO price per share multiplied by the total number of shares outstanding on a fully diluted basis, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission. The IPO price will be the final offering price to the public as stated in the final prospectus. Trading prices after listing, including the opening trade, intraday prices, or closing price on the first day of trading, will not be considered. Indicated or preliminary price ranges, including any ranges disclosed in earlier filings or amendments, will not be considered. If the calculated valuation falls exactly on a boundary between two ranges, this market will resolve to the higher range. If OpenAI does not complete an IPO by December 31, 2027, 11:59 PM ET, this market will resolve to the lowest bracket. The primary resolution source will be the final prospectus filed with the SEC; however, a consensus of credible reporting may also be used.

This event has 8 questions and exactly one of them can win: when one settles Yes, every other settles No.

Each question is its own Yes/No market: a share of the side that wins pays 100¢, the other side pays 0¢.

It can settle from Jan 1, 2028 04:59 UTC; trading can go on after that until the result is final.

Prices as of Oct 27, 2026 13:14 UTC; volume from on-chain fills over the last 24h. Trading data is ours; event metadata comes from Polymarket. Not affiliated with Polymarket · Not investment advice.