OpenAI’s confidential June 2026 S-1 filing and CEO Sam Altman’s insistence on a minimum $1 trillion IPO valuation—well above the $852 billion post-money mark from the record $122 billion March 2026 round—anchor trader expectations for a debut in the $1.25–2.0 trillion range. Strong revenue momentum, with run rates cited between $24 billion and over $40 billion annualized alongside projections toward $100 billion by 2029, supports higher multiples despite heavy infrastructure losses and capex. The shift toward a 2027 listing, influenced by SpaceX’s post-IPO volatility and internal readiness concerns, gives the company time to demonstrate sustained growth before facing public-market scrutiny. Closely matched probabilities around the $1.25–1.75 trillion bands reflect uncertainty over execution timing, comparable AI valuations such as Anthropic’s, and broader risk appetite for high-growth tech floats.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$1.25T–$1.5T 21.9%
$1.5T–$1.75T 20.6%
$1.75T–$2.0T 18%
$1.0T–$1.25T 12%
$91,823 Vol.
$91,823 Vol.
<$1T
8%
$1.0T–$1.25T
12%
$1.25T–$1.5T
22%
$1.5T–$1.75T
21%
$1.75T–$2.0T
18%
$2.0T–$2.25T
4%
$2.25T–$2.5T
3%
$2.5T+
8%
$1.25T–$1.5T 21.9%
$1.5T–$1.75T 20.6%
$1.75T–$2.0T 18%
$1.0T–$1.25T 12%
$91,823 Vol.
$91,823 Vol.
<$1T
8%
$1.0T–$1.25T
12%
$1.25T–$1.5T
22%
$1.5T–$1.75T
21%
$1.75T–$2.0T
18%
$2.0T–$2.25T
4%
$2.25T–$2.5T
3%
$2.5T+
8%
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.
Market Opened: May 21, 2026, 1:27 PM ET
Resolver
0x69c47De9D...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.
Resolver
0x69c47De9D...OpenAI’s confidential June 2026 S-1 filing and CEO Sam Altman’s insistence on a minimum $1 trillion IPO valuation—well above the $852 billion post-money mark from the record $122 billion March 2026 round—anchor trader expectations for a debut in the $1.25–2.0 trillion range. Strong revenue momentum, with run rates cited between $24 billion and over $40 billion annualized alongside projections toward $100 billion by 2029, supports higher multiples despite heavy infrastructure losses and capex. The shift toward a 2027 listing, influenced by SpaceX’s post-IPO volatility and internal readiness concerns, gives the company time to demonstrate sustained growth before facing public-market scrutiny. Closely matched probabilities around the $1.25–1.75 trillion bands reflect uncertainty over execution timing, comparable AI valuations such as Anthropic’s, and broader risk appetite for high-growth tech floats.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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