OpenAI’s recent $122 billion funding round at an $852 billion valuation has fueled trader expectations for a potential late-2026 IPO near or above $1 trillion, supported by banker preparations for a confidential filing and a targeted $60 billion raise. However, the near-even split between “no IPO by December 31, 2026” and the highest valuation buckets reflects uncertainty over exact timing, with CFO Sarah Friar reportedly favoring 2027 due to public-company reporting demands, ongoing Musk litigation, and missed internal revenue targets. Competitive pressure from Anthropic’s parallel 2026 plans adds another variable, while strong artificial intelligence demand and large-language-model growth provide upside catalysts if execution aligns.
基于Polymarket数据的AI实验性摘要。这不是交易建议,也不影响该市场的结算方式。 · 更新于OpenAI publicly announces IPO filing, targets September debut
OpenAI publicly confirmed its confidential IPO filing with the SEC, aiming for a September 2026 debut with a valuation up to $1 trillion. This announcement further solidified market expectations for a 2026 IPO and contributed to the highest odds for a closing market cap above $1.5 trillion.
OpenAI confidentially files for IPO targeting $730B to $850B valuation
1.5T+ surges to 46%20%
OpenAI officially filed confidentially for its IPO, targeting a September 2026 debut with a valuation between $730 billion and $850 billion, confirming market expectations and driving a rise in the highest valuation bracket.
Anthropic files confidential IPO prospectus, intensifying competition
No IPO by December 31, 2026 drops to 25%5%
Anthropic, OpenAI's main competitor, also filed confidentially for an IPO, increasing competitive pressure and investor scrutiny on OpenAI's valuation and timing. This rivalry influenced market dynamics and sustained some uncertainty about OpenAI's readiness and valuation.
OpenAI targets IPO as soon as September 2026 with $730B-$850B valuation
1.5T+ surges to 42%16%
Reports indicated OpenAI was working with Goldman Sachs and Morgan Stanley on a confidential IPO filing targeting a September 2026 debut with a private-market valuation between $730 billion and $850 billion, reinforcing market expectations for a large IPO in 2026.
Anthropic confidentially files for IPO, increasing pressure on OpenAI
No IPO by December 31, 2026 dips to 27%1%
Anthropic's confidential IPO filing in early June 2026 heightened competitive pressure on OpenAI, leading to market uncertainty about OpenAI's IPO timing and valuation, reflected in fluctuating market prices for OpenAI's IPO outcomes.
Anthropic files confidential IPO at $965 billion valuation
No IPO by December 31, 2026 drops to 25%5%
Anthropic's IPO filing at a $965 billion valuation intensified competition in the AI IPO race, influencing market dynamics and slightly tempering OpenAI's valuation probabilities due to competitive pressure.
Anthropic files confidential IPO draft, ramps up AI IPO race
1.25T–1.5T drops to 7%6%
Anthropic filed a confidential IPO draft, intensifying the competitive race. The news caused a modest pullback in the highest‑valuation bracket and a lift for the 1.25T–1.5T range as traders re‑priced relative risk.
Elon Musk’s lawsuit against OpenAI dismissed, removing IPO legal hurdle
1.5T+ rises to 9%4%
A federal jury dismissed Elon Musk’s lawsuit against OpenAI, removing a significant legal obstacle and increasing confidence in OpenAI’s ability to proceed with its IPO plans, positively impacting market sentiment for a 2026 IPO.
Market speculation intensifies on OpenAI IPO valuation and timing
No IPO by December 31, 2026 rises to 30%2%
Market participants debated OpenAI's IPO valuation, with some expecting a first-day market cap above $1 trillion, while others noted the company's high losses and delayed profitability. This uncertainty contributed to fluctuating market prices across valuation brackets.
Market speculation peaks on OpenAI IPO valuation and timing
Speculation about OpenAI's IPO valuation and timing peaked, with some traders expecting a first-day market cap above $1 trillion, while others noted financial losses and delayed profitability. This uncertainty contributed to fluctuating market prices across valuation brackets.
OpenAI investors optimistic despite financial challenges, eyeing $1 trillion IPO
1.5T+ surges to 30%18%
Despite financial losses and competition, investors remain optimistic about OpenAI's IPO potential, anticipating a valuation near $1 trillion and a September 2026 listing, supporting market prices for higher valuation brackets.
OpenAI's valuation and revenue projections highlight massive losses and funding needs
750B–1T dips to 5%4%
Analyses revealed OpenAI's substantial losses and high cash burn, with projected losses of $14 billion in 2026 and cumulative losses up to $115 billion by 2029, underscoring the IPO as a funding necessity rather than a celebration, influencing market caution on valuation.
Market anticipates OpenAI IPO could reach $2.5 trillion valuation by year-end
1.5T+ jumps to 30%8%
Market activity and reports suggested optimism that OpenAI's IPO could achieve a valuation as high as $2.5 trillion, reflecting bullish investor sentiment on the company's market cap potential post-IPO.
Market reacts to internal debate over OpenAI IPO timing and CFO concerns
No IPO by December 31, 2026 plunges to 26%44%
Reports emerged of internal disagreements between CEO Sam Altman pushing for a 2026 IPO and CFO Sarah Friar advocating delay to 2027 due to financial and reporting readiness concerns, causing market uncertainty and a drop in high valuation outcome prices.
Market reacts to intensified competition from Anthropic and SpaceX IPOs
1.5T+ drops to 22%8%
As Anthropic and SpaceX prepared their own IPOs with high valuations, market participants reassessed OpenAI's valuation prospects amid competitive pressures and capital market dynamics, causing volatility and a decline in the highest valuation outcome prices.
Reports confirm OpenAI targets September 2026 IPO debut
No IPO by December 31, 2026 jumps to 74%7%
Following the confidential filing, reports confirmed OpenAI's target for a public listing as early as September 2026. This reinforced market optimism and expectations for a high valuation IPO within the year.
OpenAI's CFO expresses concerns about IPO readiness and timing
No IPO by December 31, 2026 drops to 62%6%
Reports emerged that OpenAI's CFO Sarah Friar had reservations about the company's readiness for a 2026 IPO due to financial losses and internal divisions, causing some market uncertainty and a temporary dip in confidence for the IPO timing and valuation.
OpenAI targets September 2026 IPO debut amid intense competition
1.25T–1.5T jumps to 14%6%
Reports confirmed OpenAI's CEO Sam Altman is targeting a September 2026 IPO debut, aiming to raise $60 billion. The company faces competitive pressure from Anthropic and SpaceX, influencing market expectations and valuation forecasts.
OpenAI files confidential S-1 IPO prospectus targeting Q4 2026 listing
1T–1.25T rises to 14%2%
On May 22, 2026, OpenAI confidentially filed its S-1 IPO prospectus with the SEC, aiming for a Q4 2026 public listing with a valuation between $852 billion and $1 trillion. This filing was a major milestone confirming the IPO timeline and valuation range, influencing market prices accordingly.
OpenAI confidentially files S-1 IPO prospectus targeting Q4 2026 listing
No IPO by December 31, 2026 jumps to 72%5%
On May 22, 2026, OpenAI confidentially filed its S-1 IPO prospectus with the SEC, aiming for a public listing in the fourth quarter of 2026 with a valuation between $852 billion and $1 trillion. This filing marked a major milestone, reinforcing market expectations for a late 2026 IPO.
OpenAI confidentially files S-1 IPO prospectus with SEC
OpenAI confidentially filed its S-1 IPO prospectus with the SEC on May 22, 2026, targeting a Q4 2026 public listing with a valuation between $852 billion and $1 trillion, marking a key milestone in the IPO process and impacting market expectations.
OpenAI confidentially files S-1 IPO prospectus, targeting Q4 2026 debut
1.25T–1.5T rises to 14%4%
OpenAI confidentially filed its S-1 IPO prospectus with the SEC on May 22, 2026, aiming for a Q4 2026 public listing with a valuation between $852 billion and $1 trillion. This filing confirmed the IPO timeline and valuation expectations, significantly impacting market pricing toward higher valuation outcomes.
OpenAI confidentially files S-1 IPO prospectus targeting Q4 2026 listing
1T–1.25T rises to 13%1%
OpenAI confidentially filed its S-1 IPO prospectus with the SEC, aiming for a public listing in the fourth quarter of 2026 with a valuation between $852 billion and $1 trillion. This filing confirmed the company's IPO timeline and valuation expectations, driving market activity.
OpenAI confidentially files S-1 IPO prospectus with SEC
1.5T+ surges to 46%20%
OpenAI officially confidentially filed its S-1 IPO prospectus targeting a Q4 2026 public listing with a valuation between $852 billion and $1 trillion. This filing was a key catalyst that significantly increased market odds for an IPO by year-end and a valuation above $1.5 trillion.
OpenAI targets September IPO with Goldman Sachs and Morgan Stanley
1.5T+ jumps to 13%7%
The New York Times and other outlets reported OpenAI's plans to file a confidential IPO prospectus within days, aiming for a September 2026 public listing. This news reinforced market expectations for a 2026 IPO and a valuation near or above $1 trillion.
OpenAI targets September 2026 IPO listing after confidential filing preparations
1.5T+ jumps to 22%9%
Reports confirmed OpenAI's confidential IPO filing preparations with a target to list publicly in September 2026, reinforcing market expectations for a near-term IPO and supporting higher valuation brackets.
Elon Musk's lawsuit against OpenAI dismissed, removing legal risk
No IPO by December 31, 2026 jumps to 67%5%
On May 21, 2026, Elon Musk's federal lawsuit against OpenAI was dismissed by a jury due to delay in filing. This removal of a significant legal risk improved market sentiment towards OpenAI's IPO prospects, supporting higher confidence in a 2026 IPO.
Elon Musk's lawsuit against OpenAI dismissed, clearing IPO path
1.5T+ surges to 34%21%
The dismissal of Elon Musk's lawsuit against OpenAI removed a significant legal obstacle, increasing market optimism about the IPO timeline and contributing to a surge in the highest valuation bracket probabilities.
OpenAI confidentially files S-1 IPO prospectus with SEC
OpenAI confidentially filed its S-1 IPO prospectus with the SEC on May 22, 2026, confirming preparations for a Q4 2026 public listing with a valuation between $852 billion and $1 trillion. This filing was a major milestone that solidified market expectations for the IPO and influenced valuation brackets.
OpenAI targets September 2026 public listing after confidential filing
1.5T+ jumps to 24%10%
Following confidential filing preparations, OpenAI reportedly aims for a public listing as soon as September 2026. This news reinforced market expectations for a 2026 IPO and contributed to increased pricing in higher valuation brackets.
OpenAI Reportedly Preparing Confidential IPO Filing for September Debut
No IPO by December 31, 2026 plunges to 27%48%
Reports emerged that OpenAI is preparing to file confidential IPO paperwork with Goldman Sachs and Morgan Stanley, targeting a public debut as early as September 2026. This caused the 'No IPO' odds to plunge and boosted high-valuation brackets.
Jury throws out Elon Musk’s lawsuit against OpenAI
1.5T+ jumps to 27%14%
A jury dismissed Elon Musk’s lawsuit against OpenAI, removing a major legal cloud. The verdict cleared the path for an IPO filing and boosted confidence that OpenAI could list in the coming months, driving the price toward the 1.5T+ bracket.
CNBC: OpenAI to file confidential IPO prospectus this week
1.5T+ surges to 47%16%
CNBC reported that OpenAI would file a confidential IPO prospectus within days, citing insiders. The imminent filing spurred a sharp rise in the market‑cap odds, moving the price from the low‑single digits to the mid‑teens.
Reports emerge of OpenAI preparing confidential IPO filing soon
1.5T+ jumps to 13%9%
Multiple reports from The Wall Street Journal and others revealed OpenAI was preparing to confidentially file for an IPO, with Goldman Sachs and Morgan Stanley involved, boosting market confidence in a 2026 IPO.
OpenAI preparing confidential IPO filing with Goldman Sachs and Morgan Stanley
1.5T+ surges to 22%18%
Multiple reports on May 20, 2026, confirmed OpenAI was preparing to confidentially file its IPO prospectus imminently, with major banks advising. This news sharply increased market confidence in a 2026 IPO and boosted prices for higher valuation brackets.
OpenAI aims to accelerate IPO timeline following legal victory and market conditions
1.5T+ jumps to 26%13%
Following the dismissal of Elon Musk's lawsuit and favorable market conditions, OpenAI is reported to be accelerating its IPO timeline, aiming for a September 2026 debut. This optimism boosted market odds for a 2026 IPO and higher valuation brackets.
OpenAI IPO filing news causes Anthropic odds to collapse in prediction markets
1.5T+ jumps to 13%10%
Following reports of OpenAI's confidential IPO filing preparations, prediction markets saw a sharp increase in OpenAI IPO odds and a collapse in Anthropic's IPO odds, reflecting investor confidence in OpenAI's lead in the AI IPO race.
OpenAI prepares confidential IPO filing with Goldman Sachs and Morgan Stanley
1.5T+ rises to 6%2%
Reports emerged that OpenAI is preparing to confidentially file its IPO prospectus imminently, targeting a September 2026 debut. This filing preparation increased market confidence in an IPO occurring within 2026 and influenced valuation expectations.
OpenAI preparing confidential IPO filing, targeting September 2026 debut
1.25T–1.5T jumps to 14%11%
Multiple reports from credible sources including The Wall Street Journal and The New York Times confirmed OpenAI was preparing to confidentially file its IPO prospectus, aiming for a public listing as early as September 2026. This was a critical catalyst that sharply increased market confidence in the IPO happening in 2026 and influenced valuation expectations.
Elon Musk's lawsuit against OpenAI dismissed by jury
No IPO by December 31, 2026 jumps to 74%7%
A federal jury dismissed Elon Musk's lawsuit against OpenAI, removing a significant legal obstacle to the IPO. This development improved market sentiment and increased confidence in the IPO timeline and valuation prospects.
OpenAI prepares confidential IPO filing with Goldman Sachs and Morgan Stanley
No IPO by December 31, 2026 surges to 67%39%
Multiple reports on May 20, 2026, indicated that OpenAI was preparing to confidentially file its IPO paperwork soon, with major banks Goldman Sachs and Morgan Stanley advising. This news significantly increased market confidence in a 2026 IPO and boosted expectations for a high valuation.
OpenAI prepares to file IPO prospectus amid legal victory
1.5T+ surges to 26%21%
Following the dismissal of Elon Musk's lawsuit against OpenAI, the company accelerated IPO preparations, with reports indicating a confidential filing could occur within days. This legal clearance removed a major obstacle, boosting market confidence in a 2026 IPO.
OpenAI prepares confidential IPO filing with Goldman Sachs and Morgan Stanley
Multiple reports on May 20, 2026, confirmed OpenAI was preparing to confidentially file its IPO prospectus with major banks Goldman Sachs and Morgan Stanley, aiming for a public debut as early as September 2026. This significantly increased market confidence in a 2026 IPO and boosted valuation expectations.
OpenAI prepares to confidentially file IPO prospectus targeting Q4 2026 debut
OpenAI was reported to be preparing to confidentially file its IPO prospectus with Goldman Sachs and Morgan Stanley, targeting a public debut as early as September or Q4 2026, which increased market speculation and influenced trading prices.
OpenAI CFO advises delaying IPO to 2027 due to growth and financial concerns
No IPO by December 31, 2026 plunges to 28%45%
Reports emerged that OpenAI CFO Sarah Friar privately recommended postponing the IPO to 2027, citing unmet financial reporting standards and growth slowdown. This introduced uncertainty and tempered market enthusiasm for a 2026 IPO.
Microsoft and OpenAI Amend Partnership to Grant More Cloud Flexibility
1.25T–1.5T rises to 8%3%
Microsoft and OpenAI updated their partnership terms, allowing OpenAI to serve its products across any cloud provider and making the corporate structure cleaner ahead of a potential public listing.
Microsoft and OpenAI Amend Partnership to Grant Cloud Flexibility
1T–1.25T surges to 51%40%
Microsoft and OpenAI updated their partnership terms, allowing OpenAI to serve its products across any cloud provider and making the IP license non-exclusive, simplifying OpenAI's corporate structure ahead of an IPO.
OpenAI leadership reshuffle amid IPO preparations
No IPO by December 31, 2026 drops to 63%5%
Bloomberg and other media reported significant leadership changes at OpenAI, including COO role shift and key executives taking leave. This raised market concerns about execution risks ahead of the IPO, impacting valuation confidence.
OpenAI closes $122 billion funding round at $852 billion valuation with retail investor access
<500B jumps to 8%6%
OpenAI completed a record $122 billion funding round at an $852 billion valuation, including $3 billion allocated to retail investors for the first time. This milestone increased market confidence in OpenAI's valuation and IPO prospects.
OpenAI closes $122 billion funding round at $852 billion valuation
500–750B jumps to 50%7%
OpenAI completed a massive funding round at an $852 billion valuation, reinforcing its private market valuation and providing capital ahead of the IPO. This event supported market expectations for a high valuation IPO but also highlighted the company's reliance on private funding.
OpenAI closes record-breaking $122 billion funding round at $852 billion valuation
OpenAI announced closing a $122 billion funding round at an $852 billion post-money valuation, the largest private funding round in history, which bolstered market confidence in the company's valuation and IPO prospects.
OpenAI Closes Record-Breaking $122 Billion Funding Round at $852 Billion Valuation
750B–1T rises to 10%1%
OpenAI officially closed its massive funding round with $122 billion in committed capital, establishing a post-money private valuation of $852 billion and anchoring expectations for its public debut.
IPO rumors intensify amid competitive AI landscape and finance hiring
No IPO by December 31, 2026 surges to 81%18%
Speculation about OpenAI's IPO timing increased due to hiring in finance and accounting teams, signaling preparation for public listing and fueling market expectations for a 2026 IPO.
OpenAI targets Q4 2026 IPO at $1 trillion valuation
1T–1.25T jumps to 14%8%
The Wall Street Journal reported OpenAI's plans for a fourth quarter 2026 IPO targeting a $1 trillion valuation, with major Wall Street banks engaged. This reinforced market expectations for a late 2026 IPO and influenced valuation bracket probabilities.
SoftBank announces up to $30B investment in OpenAI
1T–1.25T rises to 7%2%
SoftBank's announcement of a potential $30 billion investment in OpenAI increased confidence in the company's capital raising ability ahead of an IPO, positively impacting market expectations for a successful public offering.
OpenAI CFO expresses reservations about 2026 IPO readiness
No IPO by December 31, 2026 plunges to 46%24%
Reports emerged that OpenAI CFO Sarah Friar had concerns about the company being ready for an IPO in 2026, highlighting internal divisions and financial challenges. This likely contributed to market uncertainty and a decrease in near-term IPO optimism.
Reports suggest OpenAI targets Q4 2026 IPO with $1 trillion valuation
1T–1.25T surges to 70%20%
Market reports emerged indicating OpenAI's plan to file for an IPO in the fourth quarter of 2026 with a target valuation around $1 trillion. This news increased market optimism about the IPO occurring within the year and boosted valuation bracket probabilities.
OpenAI targets Q4 2026 IPO with $1 trillion valuation amid financial challenges
Reports in early 2026 indicated OpenAI was preparing for a fourth quarter IPO targeting a $1 trillion valuation, despite facing significant losses and high infrastructure spending. This news shaped market expectations for a late 2026 IPO and influenced valuation brackets.
OpenAI targets Q4 2026 IPO with $1 trillion valuation
1T–1.25T jumps to 12%5%
Reports emerged that OpenAI was targeting a fourth quarter 2026 IPO with a potential valuation around $1 trillion, raising market expectations for a large and imminent public offering. This news increased confidence in the IPO occurring within 2026.
OpenAI seeks $100 billion funding at $830 billion valuation
OpenAI entered talks to raise up to $100 billion in a funding round that could value the company at up to $830 billion, signaling strong investor interest but also highlighting the company's significant capital needs and influencing market expectations for its IPO valuation.
OpenAI CFO Sarah Friar Says IPO Is Not on the Cards Right Now
No IPO by December 31, 2026 surges to 70%16%
Speaking at the WSJ Tech Live conference, OpenAI CFO Sarah Friar stated that an initial public offering is not in the startup's near-term plans, cooling down immediate IPO expectations.
OpenAI CEO Sam Altman signals IPO as most likely future but timing uncertain
In a livestream on October 28, 2025, CEO Sam Altman stated that an IPO was the most likely future for OpenAI, though the exact timing remained uncertain. This public statement increased market attention and speculation about the IPO timeline, influencing early market pricing.
Reuters reports OpenAI considering IPO filing in second half of 2026 or 2027
No IPO by December 31, 2026 jumps to 68%5%
A Reuters report indicated OpenAI was considering filing for an IPO in the second half of 2026 or in 2027, which influenced market expectations about the timing of the IPO.
OpenAI considers 2026 IPO with $1 trillion valuation target
1T–1.25T plunges to 6%44%
Reuters reported that OpenAI was laying groundwork for a juggernaut IPO with a potential valuation of up to $1 trillion, signaling increased market anticipation for a public offering in 2026. This news likely contributed to early market pricing shifts favoring a high valuation outcome.
Report suggests OpenAI considering IPO filing in second half of 2026 or 2027
No IPO by December 31, 2026 jumps to 63%13%
Reuters reported that OpenAI was considering filing for an IPO in the second half of 2026 or in 2027, fueling early market speculation about the timing of the public offering and influencing market prices for IPO-related outcomes.
OpenAI CEO Sam Altman states IPO is likely but timing uncertain
No IPO by December 31, 2026 jumps to 62%12%
On October 28, 2025, Sam Altman indicated that an IPO was the most likely future for OpenAI, though no specific timing was set. This statement influenced market expectations about the IPO timing and valuation.
OpenAI lays groundwork for IPO with potential $1 trillion valuation
Reports emerged that OpenAI was preparing for an IPO that could value the company at up to $1 trillion, marking it as one of the largest IPOs ever. CEO Sam Altman indicated that an IPO was the most likely path given capital needs, fueling market speculation and price movements.
OpenAI eyes second‑half‑2026 IPO filing, WSJ reports
1.5T+ rises to 4%3%
A Reuters report cited The Wall Street Journal saying OpenAI was considering filing for an IPO in the second half of 2026. The news lifted optimism about a near‑term listing, pushing the market‑cap odds toward the higher valuation brackets.
OpenAI Finalizes Restructuring into a Public Benefit Corporation
No IPO by December 31, 2026 plunges to 59%26%
OpenAI completed its transition to a Delaware-based Public Benefit Corporation, clearing legal hurdles and establishing a structure to attract large institutional investments for a traditional IPO.
OpenAI completes transition to public benefit corporation, enabling IPO plans
No IPO by December 31, 2026 jumps to 74%6%
OpenAI's corporate restructuring from a nonprofit to a public benefit corporation removed a key legal barrier to going public, paving the way for an IPO. This milestone increased market speculation about a potential IPO and valuation targets around $1 trillion.
OpenAI Finalizes Restructuring Into Delaware Public Benefit Corporation
1T–1.25T jumps to 13%12%
OpenAI completed its transition from a nonprofit to a Delaware-based Public Benefit Corporation, a crucial structural step designed to clear legal hurdles and attract institutional capital for a traditional IPO.
OpenAI Completes Restructuring Into Delaware Public Benefit Corporation
No IPO by December 31, 2026 plunges to 59%20%
OpenAI finalized its transition from a non-profit to a public benefit corporation, a crucial structural step designed to clear legal hurdles and attract institutional capital for a future IPO.
OpenAI completes restructuring into a Delaware-based Public Benefit Corporation
OpenAI finalized a major restructuring into a Public Benefit Corporation, allowing the original non-profit foundation to retain a 26% equity stake and enabling the company to raise capital more effectively. This structural change was a crucial step toward enabling a future IPO and influenced market expectations for OpenAI's public listing.
OpenAI CEO Sam Altman states IPO is likely but timing uncertain
In a livestream on October 28, 2025, CEO Sam Altman indicated that an IPO was the most likely future for OpenAI, though the exact timing was uncertain. This statement likely influenced market expectations by confirming IPO plans without committing to a date.
Sam Altman states IPO is likely but timing uncertain
No IPO by December 31, 2026 rises to 53%3%
OpenAI CEO Sam Altman publicly acknowledged that an IPO is the most likely future for OpenAI, though the exact timing remained uncertain. This statement increased market awareness and speculation about a potential IPO, influencing early market pricing.
OpenAI CEO Sam Altman states IPO is likely but timing uncertain
No IPO by December 31, 2026 jumps to 63%13%
Sam Altman publicly indicated that an IPO is the most likely future for OpenAI, though no specific timing was confirmed. This statement influenced market expectations by confirming IPO intent but maintaining uncertainty about the date, causing moderate price fluctuations.

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