OpenAI’s confidential S-1 filing in June 2026 and subsequent pivot away from a 2026 listing have shaped trader views on proceeds. CEO Sam Altman’s September 12 statements prioritizing AI safety and alignment over an immediate IPO, combined with a $1 trillion valuation target versus the March $852 billion private mark, underpin the 50.5% implied probability on a $100B+ raise. The company’s ongoing capital needs for compute, recent $122 billion private round, and precedent of large tech floats support expectations of substantial proceeds once market conditions and regulatory readiness align in 2027. Lower-probability buckets below $50 billion reflect uncertainty around timing, valuation floors, and potential secondary components.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$100B+ 41%
<$30B 25.6%
$80B–$90B 21.3%
$40B–$50B 20.6%
NEW
NEW
Dec 30, 2027
<$30B
26%
$30B–$40B
4%
$40B–$50B
25%
$50B–$60B
6%
$60B–$70B
8%
$70B–$80B
9%
$80B–$90B
21%
$90B–$100B
3%
$100B+
45%
$100B+ 41%
<$30B 25.6%
$80B–$90B 21.3%
$40B–$50B 20.6%
NEW
NEW
Dec 30, 2027
<$30B
$603 Vol.
26%
$30B–$40B
$463 Vol.
4%
$40B–$50B
$1,621 Vol.
25%
$50B–$60B
$1,153 Vol.
6%
$60B–$70B
$499 Vol.
8%
$70B–$80B
$489 Vol.
9%
$80B–$90B
$448 Vol.
21%
$90B–$100B
$306 Vol.
3%
$100B+
$1,742 Vol.
45%
This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing.
The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered.
If the total proceeds fall 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.OpenAI’s confidential S-1 filing in June 2026 and subsequent pivot away from a 2026 listing have shaped trader views on proceeds. CEO Sam Altman’s September 12 statements prioritizing AI safety and alignment over an immediate IPO, combined with a $1 trillion valuation target versus the March $852 billion private mark, underpin the 50.5% implied probability on a $100B+ raise. The company’s ongoing capital needs for compute, recent $122 billion private round, and precedent of large tech floats support expectations of substantial proceeds once market conditions and regulatory readiness align in 2027. Lower-probability buckets below $50 billion reflect uncertainty around timing, valuation floors, and potential secondary components.
This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing.
The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered.
If the total proceeds fall 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.
The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered.
If the total proceeds fall 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, 1:14 PM ET
Volume
$7,324End Date
Dec 31, 2027Market Opened
May 21, 2026, 1:14 PM ETResolver
0x69c47De9D...This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing.
The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered.
If the total proceeds fall 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.OpenAI’s confidential S-1 filing in June 2026 and subsequent pivot away from a 2026 listing have shaped trader views on proceeds. CEO Sam Altman’s September 12 statements prioritizing AI safety and alignment over an immediate IPO, combined with a $1 trillion valuation target versus the March $852 billion private mark, underpin the 50.5% implied probability on a $100B+ raise. The company’s ongoing capital needs for compute, recent $122 billion private round, and precedent of large tech floats support expectations of substantial proceeds once market conditions and regulatory readiness align in 2027. Lower-probability buckets below $50 billion reflect uncertainty around timing, valuation floors, and potential secondary components.
This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing.
The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered.
If the total proceeds fall 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.
The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission.
Shares sold pursuant to any overallotment option (greenshoe) will not be considered.
Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered.
If the total proceeds fall 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.
Volume
$7,324End Date
Dec 31, 2027Market Opened
May 21, 2026, 1:14 PM ETResolver
0x69c47De9D...OpenAI’s confidential S-1 filing in June 2026 and subsequent pivot away from a 2026 listing have shaped trader views on proceeds. CEO Sam Altman’s September 12 statements prioritizing AI safety and alignment over an immediate IPO, combined with a $1 trillion valuation target versus the March $852 billion private mark, underpin the 50.5% implied probability on a $100B+ raise. The company’s ongoing capital needs for compute, recent $122 billion private round, and precedent of large tech floats support expectations of substantial proceeds once market conditions and regulatory readiness align in 2027. Lower-probability buckets below $50 billion reflect uncertainty around timing, valuation floors, and potential secondary components.
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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