Short Answer

OpenAI is expected to officially announce an IPO before June 1, 2027, priced by the market at 57%. This probability persists despite the late October 2026 private funding round reducing immediate financial pressure, with the model pricing the event lower at 38.5%.

1. Market Behavior & Drivers

Reports of OpenAI pursuing another large private funding round in October 2026 drove the market's most significant single-day move. This news, which traders interpreted as a signal that a public offering was not imminent, caused an 8.0 percentage point drop in the perceived probability of a near-term IPO announcement on October 15.
The market's consistently low valuation, trading in a narrow 2.0% to 7.0% range, reflects a definitive statement from CEO Sam Altman. On September 12, 2026, he officially ruled out an IPO for that year, citing AI safety concerns and a lack of financial pressure. This announcement effectively ended speculation that had been fueled by a confidential IPO filing in June 2026 and earlier reports pointing to a potential late-2026 debut.
  • Since last update (~84d): The headline market probability surged +56.0pp, significantly widening the model-market edge by -18.0pp.
  • Most 'Before' outcomes, including Before Jun 1, 2027, saw market-led probability declines and edge compression.
  • Early 2026 IPO announcement outcomes were removed, indicating a delay in market expectations.
  • CFO Sarah Friar stated OpenAI will be a public company in 2027.
  • Late 2026 private funding reduces urgency for an early 2027 IPO.
  • CEO Sam Altman explicitly ruled out an IPO announcement in 2026.

Who Wins and Why

Outcome Market Model Why
Before Dec 1, 2026 3.0% 1.5% Research does not highlight strong supporting evidence.
Before Jan 1, 2027 7.0% 3.5% Research does not highlight strong supporting evidence.
Before Feb 1, 2027 7.0% 3.5% Research does not highlight strong supporting evidence.
Before Mar 1, 2027 21.0% 10.7% Research does not highlight strong supporting evidence.
Before Apr 1, 2027 26.0% 15.4% Research does not highlight strong supporting evidence.

Current Context

OpenAI has officially ruled out an IPO in 2026. CEO Sam Altman stated on September 12, 2026, that a public listing this year would be "ill-advised" due to AI-safety concerns, with the company feeling no immediate pressure to list [1]. This statement superseded earlier expectations from October 2025 and May 2026 that pointed to a potential late-2026 filing, aiming to raise at least $60 billion at up to a $1 trillion valuation [2]. While the company confidentially filed IPO paperwork in June 2026, it explicitly stated no timeline had been determined [3]. By June 25, reporting indicated a lean towards a 2027 debut over 2026 [4]. A confidential draft filing does not constitute an official public IPO announcement; the company can remain private, and Reuters reported OpenAI acknowledged some goals might be easier as a private entity [1].
Forecasts and financial developments point to a 2027 public offering. The best-supported prediction for an official IPO announcement or effective listing is 2027, likely in the spring or first half of the year [5]. OpenAI CFO Sarah Friar reportedly told employees on August 19 that the company "will be a public company in 2027" [5]. Prediction markets have adjusted, with Kalshi pricing as of September 3 implying a roughly 79% chance of confirmation before June 1, 2027, versus about 15% before January 1, 2027 [5]. An October 9 report placed the probability of an IPO at or above a $1.5 trillion valuation by December 31, 2027, at 55.4%, with a 23.5% chance of no IPO by that deadline [6]. Earlier 2026 probabilities, such as 64% on Kalshi and 53% on Polymarket reported by Dune, later collapsed [7]. The company is pursuing a reported private funding round of up to $30 billion at approximately a $1.25 trillion pre-money valuation, with terms still under negotiation as of October 22, 2026 [8]. This financing would increase the valuation hurdle for a future public offering [8]. Financial markers show robust growth but substantial capital requirements. OpenAI reported approximately $2 billion in monthly revenue in March 2026, equating to about a $24 billion annualized pace; Q2 revenue was $6.7 billion against Q1's $5.7 billion [6]. Operating losses widened to $12.3 billion from $9.3 billion [6]. The Guardian also reported a roughly $25 billion annualized revenue pace, over 900 million weekly ChatGPT users, and more than 50 million paying subscribers [9]. Expert commentary remains cautious; analysts emphasize the need for durable revenue growth, tighter strategic discipline, and a credible path to profitability for a public-market debut [9]. Risks include enormous infrastructure spending, continuing losses, competition, governance complexity, and reliance on private capital [9]. One analyst described the valuation as requiring "a lot of things" to go right [10].
Sources (10)
  1. 1OpenAI IPO will not happen in 2026 amid AI safety fears, Altman says | Reutersreuters.com
  2. 2OpenAI aiming for speedy IPO, source says | Reutersreuters.com
  3. 3OpenAI files for US IPO after Anthropic as AI giants head to public markets | Reutersreuters.com
  4. 4OpenAI leans toward waiting until next year for IPO, NYT reports | Reutersreuters.com
  5. 5OpenAI IPO: The CFO Named The Year. The Market Named Spring | OddsShopperoddsshopper.com
  6. 6OpenAI IPO Odds Fall to 55.4% After Company Rules Out 2026 Listing | TokenPosttokenpost.com
  7. 7Prediction-Market Pricing of the 2026 Mega-IPOs - Blog | Dunedune.com
  8. 8OpenAI working on new $30B raise at $1.25T valuation ahead of IPO | TechCrunchtechcrunch.com
  9. 9If OpenAI is to float on the stock market this year, it needs to start turning a profit | OpenAI | The Guardiantheguardian.com
  10. 10OpenAI IPO: 4 Things To Know As Anticipation Builds | August 2026 Editionforbes.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

Outcome: Before Mar 1, 2027

📈 October 21, 2026: 10.0pp spike

Price increased from 19.0% to 29.0%

What happened: The provided research does not identify a clear primary driver for the 10.0 percentage point spike on October 21, 2026. No specific social media activity or new traditional news on or immediately preceding this date supports an increased likelihood of an OpenAI IPO announcement before March 1, 2027. While OpenAI's CFO stated in August 2026 that the company "will be a public company in 2027" [1], subsequent October reporting highlighted a focus on accelerating private fundraising, which typically suggests prioritizing private capital before an IPO rather than an imminent announcement [2][3][4]. Therefore, social media was irrelevant, and traditional news appears to offer contradictory signals regarding an imminent IPO announcement on this date.

Outcome: Before Jun 1, 2027

📉 October 15, 2026: 8.0pp drop

Price decreased from 56.0% to 48.0%

What happened: The primary driver for the market drop was traditional news reports in October 2026, indicating OpenAI was pursuing another large private funding round ahead of its IPO [5][4][2]. This information, suggesting a potential delay in the IPO announcement to secure substantial private capital, reduced the market's expectation of an official announcement before June 1, 2027. These reports appeared to coincide with the market movement. Social media activity was not identified as a primary driver.
Sources (5)
  1. 1OpenAI 'will be a public company in 2027' or sooner, CFO Friar tells employeescnbc.com
  2. 2OpenAI seeks to accelerate fundraising ahead of Anthropic...reuters.com
  3. 3Exclusive-OpenAI seeks to accelerate fundraising ahead of Anthropic IPO, sources say By Reutersinvesting.com
  4. 4OpenAI working on new $30B raise at $1.25T valuation ahead of IPO | TechCrunchtechcrunch.com
  5. 5OpenAI leans toward waiting until next year for IPO, NYT reports | Reutersreuters.com

4. Market Data

Contract Snapshot

This Kalshi market resolves YES if OpenAI officially announces an Initial Public Offering (IPO) before June 1, 2027. The contract resolves NO if no such official announcement is made by that date. The latest possible payout for this market is May 31, 2027.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
Before Dec 1, 2026 $0.03 $1.00 3%
Before Jan 1, 2027 $0.07 $0.97 7%
Before Feb 1, 2027 $0.10 $0.93 7%
Before Mar 1, 2027 $0.22 $0.79 21%
Before Apr 1, 2027 $0.27 $0.74 26%
Before May 1, 2027 $0.45 $0.59 42%
Before Jun 1, 2027 $0.56 $0.46 57%

Market Discussion

OpenAI disclosed a confidential U.S. IPO filing on June 8, 2026 [1], but CEO Sam Altman subsequently stated the company will not go public in 2026, citing AI safety and alignment concerns [2]. As of October 2026, prediction markets assign low probabilities for an IPO in late 2026 (e.g., 3% by December 31, 2026 [3]) but suggest a higher likelihood of an IPO-related milestone before June 1, 2027 [4][5], a delay also supported by the company's substantial private financing and approximately $2 billion monthly revenue in March 2026 [6][1].

Sources (6)
  1. 1OpenAI files for US IPO after Anthropic as AI giants head to public markets | Reutersreuters.com
  2. 2OpenAI IPO will not happen in 2026 amid AI safety fears, Altman says | MarketScreenermarketscreener.com
  3. 3OpenAI IPO by...? Predictions & Odds 2026 | Polymarketpolymarket.com
  4. 4When will OpenAI IPO? — PMIPpmip.io
  5. 5When will OpenAI officially announce an IPO? — Kalshi voorspellingsmarkt-noteringen | CoinRithmcoinrithm.com
  6. 6OpenAI IPO Odds Fall to 55.4% After Company Rules Out 2026 Listing | TokenPosttokenpost.com

5. Trust Index

Octagon Trust Index Kalshi 65 Caution

Corporate action: boards, bankers, and counsel hold the answer before the announcement

Integrity risk· Information exposure

How it adds up
Integrity80% of score66Caution
Trade quality20% of score64Caution
Trust score65Caution

Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index

Trust profile
Integrity4 screens run · 3 don't apply · 3 awaiting data

6. What Financial Pressures Could Force an OpenAI IPO in H1 2027?

Projected Negative Free Cash Flow (2026-2030)$278 billion [1]
Projected Computing & Infrastructure Spending$856 billion [1]
Estimated Additional Capital Needed (2029-2030)$115 billion to $207 billion [1]
OpenAI's substantial financial pressures could necessitate an H1 2027 public offering. The company faces a projected cumulative negative free cash flow of $278 billion from 2026 to 2030, alongside estimated computing and infrastructure spending of $856 billion [1][2]. In 2025, OpenAI reported approximately $13.1 billion in revenue against about $22 billion in cash operating spend, resulting in an operating loss near $20.9 billion, with high burn rates anticipated through 2027 [3][2]. Expenses, particularly for frontier-model training, inference, and data-center capacity, consistently outpace monetization. Inference costs alone were reportedly $8.4 billion in 2025 and are projected to increase to $14.1 billion in 2026 [4][1].
Significant capital requirements extend beyond current private funding capabilities. The March 2026 $122 billion financing round is expected to be fully utilized by 2028 [1]. Market analyses suggest an additional capital requirement ranging from roughly $115 billion to over $207 billion through 2029 to 2030 [1][3][2]. This indicates that an IPO would likely form one part of ongoing fundraising efforts [1][3][2]. An October 2026 fundraising initiative was reported, as the company sought to accelerate capital acquisition in anticipation of a competitor's public offering [5]. A public offering could become the most viable large-scale equity source if private capital becomes more expensive, restricted, or insufficient to meet these substantial needs [5].
Achieving a trillion-dollar valuation likely requires public market access. OpenAI reportedly aims for a valuation at or exceeding $1 trillion [6][7]. If private funding cannot sustain this valuation, management might expedite an H1 2027 IPO to avoid accepting a lower price in the private market [6][7]. A public offering would necessitate meeting specific demands from public investors, including audited financial statements, clear disclosures regarding Microsoft revenue-sharing, transparent governance, and credible profitability projections [6][7]. The most probable scenario for an H1 2027 IPO involves a tightening cash runway approaching 2028, sustained high compute commitments and supplier financing, increasing difficulty in securing another private round at a trillion-dollar valuation, and strategic investors seeking liquidity or reducing further exposure. These factors would prompt the company to leverage its prepared SEC process for public equity [1][5][2].
Sources (7)
  1. 1OpenAI forecasts cash burn near $280 billion by 2030, FT...reuters.com
  2. 2OpenAI Valuation 2026: New Round, IPO Date and Revenueuseluminix.com
  3. 3OpenAI's Real IPO Risk Is Financial Transparencyinvesting.com
  4. 4OpenAI revenue, valuation & funding | Sacrasacra.com
  5. 5OpenAI seeks to accelerate fundraising ahead of Anthropic...reuters.com
  6. 6The Trillion-Dollar IPO Test: SpaceX and OpenAI Face...investing.com
  7. 7OpenAI IPO: Everything You Need to Know About OpenAIforex.com

7. What Have OpenAI Executives Said Publicly and Privately About a 2027 IPO?

CFO's IPO ExpectationWill be a public company in 2027 (August 2026) [1][2]
CEO's IPO PerspectiveIPO is the "most likely path" (October 2025) [3]
IPO Delay FactorMarket conditions reportedly causing further delays to planned 2027 listing (October 19, 2026) [4]
OpenAI executives have strongly indicated a 2027 IPO as a likely path. CFO Sarah Friar explicitly stated in August 2026 that the company "will be a public company in 2027," characterizing it as a milestone and another fundraise [1][2]. CEO Sam Altman has also publicly indicated an IPO as the "most likely path" for OpenAI, given its future capital requirements [3]. Private guidance from executives has reportedly converged on 2027 as the base-case year for going public, with earlier timing considered possible depending on operating performance and market conditions [3][5][4][6].
OpenAI maintains optionality, with market conditions influencing IPO timing. Despite these strong indications, the company has consistently preserved flexibility regarding the precise timing of its public listing. By June 2026, reports suggested OpenAI was leaning towards postponing its IPO until 2027 [5][6], with a spokesperson simultaneously stating that no date had been set and an IPO was not the current focus [3][6]. As of October 2026, market conditions for IPOs were reportedly causing further delays to the planned 2027 listing, indicating that this target remains an expectation rather than a firm commitment [4]. For prediction markets, an IPO is only "confirmed" upon formal actions such as an SEC declaration of Form S-1 effectiveness or a stock exchange assigning a ticker [7][8].
Sources (8)
  1. 1OpenAI 'will be a public company in 2027' or sooner, CFO...cnbc.com
  2. 2OpenAI CFO Sarah Friar: IPO could happen sooner than...linkedin.com
  3. 3OpenAI lays groundwork for juggernaut IPO at up to $1...reuters.com
  4. 4OpenAI seeks to accelerate fundraising ahead of Anthropic...reuters.com
  5. 5OpenAI Leans Toward Holding Up I.P.O. Until Next Yearnytimes.com
  6. 6OpenAI leans toward waiting until next year for IPO, NYT...reuters.com
  7. 7When will OpenAI officially announce an IPO? Odds & Predictionskalshi.com
  8. 8When will OpenAI officially announce an IPO? Odds & Predictions - Public.compublic.com

8. Is OpenAI's Unique Governance Structure an Obstacle for a 2027 IPO Compared to Rivals like Anthropic?

Microsoft Ownershipapproximately 27% [1][2][3]
OpenAI Foundation Ownershipapproximately 26% [1][2][3]
Prediction Market IPO Likelihoodapproximately 53% before June 1, 2027 [4][5]
OpenAI's unique governance creates IPO friction but isn't a legal blocker. Its structure combines a public-benefit corporation with a controlling nonprofit and strategic-investor entanglements, which presents friction and disclosure risks for a 2027 initial public offering (IPO) but is not an obvious legal impediment [1][6][2][3]. A recapitalization on October 28, 2025, converted OpenAI's operating business into OpenAI Group PBC and removed the previous capped-profit restriction, significantly enhancing its ability to raise capital and pursue an IPO [1][2][3]. The OpenAI Foundation, however, remains the controlling nonprofit, responsible for appointing and removing the PBC board [1][2][3]. This ownership structure, with Microsoft holding approximately 27%, the Foundation about 26%, and employees/other investors around 47%, is unusual for public investors [1][2][3]. An IPO would require unusually clear disclosure regarding voting rights, Foundation control, Microsoft's rights, employee equity, related-party arrangements, and legacy agreements [1][6][2].
Anthropic also has nonstandard governance, but OpenAI's is more complex. Similar to OpenAI, Anthropic operates with a nonstandard mission governance model, structured as a Delaware Public Benefit Corporation with mission-protective governance [7][8][3]. Anthropic's reported IPO structure involves founder control plus a Long-Term Benefit Trust that selects a majority of directors over time, thereby limiting ordinary shareholder control [7][8][3]. OpenAI's model is more intricate, with a nonprofit directly controlling the operating company's board, whereas Anthropic's mission control is embedded within a trust and founder architecture [1][6][3]. Public investors may be receptive to such nonstandard mission governance models if the associated rights and economics are transparently documented [1][6][3].
Prediction markets indicate a strong likelihood for an early-to-mid 2027 IPO. These markets suggest a higher probability of an OpenAI IPO-related resolution in the first half of 2027, with approximately 53% before June 1, 2027 [4][5]. This supports a base case for an announcement or a qualifying IPO milestone to occur in early to mid-2027 [4][5].
Sources (8)
  1. 1Microsoft, OpenAI reach deal removing fundraising...reuters.com
  2. 2OpenAI PBC Restructuring: Ownership, Governance, and...useluminix.com
  3. 3OpenAI Vs Anthropic IPO: How They Compare And What...forbes.com
  4. 4When will OpenAI officially announce an IPO? Odds & Predictionskalshi.com
  5. 5When will OpenAI officially announce an IPO? Odds & Predictions - Public.compublic.com
  6. 6OpenAI IPO: Everything You Need to Know About OpenAIforex.com
  7. 7Anthropic's IPO prospectus shows sweeping AI vision,...reuters.com
  8. 8Anthropic's IPO asks investors to back a company that may...internationalfinance.com

9. What Can Secondary Market Trading in OpenAI Shares Tell Us About IPO Expectations?

Valuation at August 2026 secondary tender$852 billion [1][2]
August 2026 secondary tender offer valueApproximately $7 billion [1][2]
Chance of IPO announcement before June 1, 2027Approximately 53%-55% [3][4][5]
Secondary market trading signals IPO interest, not imminent public listing. Secondary market trading in OpenAI shares indicates both preparation for an eventual initial public offering and considerable investor interest, but these activities should not be taken as a definitive sign of an imminent public listing [1][2][3]. In August 2026, OpenAI completed a secondary tender offer totaling approximately $7 billion, which valued the company at $852 billion and aimed to facilitate liquidity for current and former employees [1][2]. This transaction followed earlier liquidity events, including a $6.6 billion round in October 2025 at a $500 billion valuation and a $1.5 billion transaction in 2024, demonstrating a consistent strategy for employee share sales [1][2]. However, the reported implied valuations from these secondary market transactions show significant dispersion, ranging from approximately $894 billion to $1.4 trillion, suggesting these are private-market benchmarks rather than precise forecasts for IPO pricing [2][6][7].
IPO timing expectations indicate a deferral, with a later announcement. Despite reports in June 2026 of a confidential IPO filing, Sam Altman explicitly stated in September that OpenAI would not go public in 2026 and would only proceed with an IPO when the business is fully prepared [2]. This explicit deferral, alongside prediction market data collected between October 26-27, 2026, suggests that a public listing is likely further in the future [2][3]. Prediction market pricing indicated an approximately 53%-55% chance of an official IPO announcement occurring before June 1, 2027, with lower probabilities assigned to earlier dates [3][4][5]. Consequently, the most probable timeframe, or modal window, for an OpenAI IPO announcement, according to these prediction markets, is spring 2027, not 2026 [3].
Sources (7)
  1. 1OpenAI wraps $7 billion share sale ahead of potential IPOcnbc.com
  2. 2Insights: OpenAI Upcoming IPO & Private Stock Priceforgeglobal.com
  3. 3When will OpenAI officially announce an IPO? Odds & Predictionskalshi.com
  4. 4When will OpenAI officially announce an IPO? — Odds & Prediction Market Pricespredictioncalculator.com
  5. 5When will OpenAI officially announce an IPO? Odds & Predictions - Public.compublic.com
  6. 6OpenAI Pre-IPO Research: Valuation and How to Investagdillon.com
  7. 7OpenAI's valuation end of October 2026?polymarket.com

10. How Does the Late 2026 Private Funding Round Affect OpenAI's IPO Calculus?

Late-October 2026 Private Funding Valuation$1.25 trillion [1][2][3][4]
March 2026 Funding Post-Money Valuation$852 billion [2][5][6][4]
Probability of IPO announcement before June 1, 2027Approximately 53% [7]
Recent private funding reduces immediate pressure for OpenAI's public market debut. OpenAI's late-October 2026 private funding round, with a valuation target of $1.25 trillion, is explicitly positioned as a strategic bridge before a potential IPO, reducing the urgency for immediate public market financing [1][2][3][4]. This financing materially improves OpenAI's ability to defer public-market financing, following a March 2026 raise of $122 billion at an $852 billion post-money valuation [2][5][6][4]. The funding is intended to support continuing infrastructure and compute commitments while the company awaits more favorable IPO conditions [2][5][6][4]. This approach allows OpenAI to finance compute and growth privately, thereby avoiding exposing unresolved safety, governance, profitability, and capital-intensity questions to public investors [1][2][3][6]. OpenAI's CFO Sarah Friar has reportedly indicated to employees that the company is expected to go public in 2027 [2][6][4].
High private valuation sets a challenging benchmark for public market acceptance. The $1.25 trillion private valuation raises the hurdle for public-market entry, requiring public investors to underwrite substantial future growth at or above that benchmark [2][3][5][6]. The reduction from a proposed $1.4 trillion target signals sensitivity to valuation and potential resistance [2][3][5][6]. As of October 27, 2026, prediction markets imply approximately a 53% probability for an official IPO announcement before June 1, 2027 [7], with June 30, 2027, being the leading IPO-by deadline at 41% [8]. This data is consistent with a market view centered on 2027, where the modal window for an announcement or IPO process milestone is around April-May 2027, with a broader practical window extending through June 2027 [1][2][3][8][7].
Sources (8)
  1. 1OpenAI seeks to accelerate fundraising ahead of Anthropic...reuters.com
  2. 2OpenAI nears funding round at $1.25T valuation led by...cnbc.com
  3. 3OpenAI trims valuation target to $1.25tn after pitching...ft.com
  4. 4OpenAI mulls funding round at $1.2 trillion valuation ahead...reuters.com
  5. 5OpenAI Eyes $1.4 Trillion Valuation in New Fundingfinance.yahoo.com
  6. 6OpenAI IPO Date: Investor Timeline, Valuation and...smartasset.com
  7. 7When will OpenAI officially announce an IPO? Odds & Predictions - Public.compublic.com
  8. 8OpenAI IPO by...? Predictions & Odds 2026polymarket.com

11. What Could Change the Odds

Key Catalysts

An official IPO announcement in 2027 is the best-supported timing estimate, most plausibly in spring or the first half of 2027 [1]. CEO Sam Altman stated on September 12, 2026, that an IPO in 2026 would be ill-advised due to AI-safety concerns, effectively delaying a public offering this year [2][3]. August/September 2026 Kalshi snapshots indicated a 69%–79% probability for confirmation before June 1, 2027, with 11%–17% before January 1, 2027 [1]. An earlier June 2026 Kalshi snapshot suggested a 59% chance for an announcement by March 1, 2027, and 73% by June 2027 [4]. Despite Reuters reporting groundwork for a possible second-half-2026 filing and a 2027 listing in October 2025, the CFO stated in November 2025 that an IPO was not on the near-term cards [5][6]. The bottom line as of October 27, 2026, assigns the highest probability to an announcement during 2027, with spring/first-half 2027 as the central scenario [2][7][8][9].
Near-term IPO catalysts include a roughly $30 billion financing round and investor discussions around an approximately $1.2 trillion–$1.4 trillion valuation [9]. The company reported annualized revenue of about $50 billion in September, projected to reach $70 billion by year-end [10][11]. This occurs amid competitive pressure before Anthropic’s expected November 2026 debut [9]. Earlier plans for a $1.4 trillion valuation were met with resistance, leading to a valuation target cut toward $1.25 trillion [8]. Reported 2025 financial documents, which are not company-confirmed, indicated $13.07 billion revenue, $34 billion total costs and expenses, a $20.92 billion operating loss, and a $38.5 billion net loss [12].
Bullish catalysts for an IPO include a public SEC registration statement, strong revenue growth, a successful Anthropic IPO that creates a favorable public-market comparable, and the completion of financing or audited 2026 accounts [13][1]. Conversely, bearish catalysts encompass AI-safety and regulatory scrutiny, volatile technology markets, a weak SpaceX IPO aftermath, continuing losses, and delays in audit or filing preparation [13][1]. Prediction-market signals are time-sensitive; Polymarket displayed approximately 31% for an IPO closing below $1 trillion and 38% for a closing market cap of at least $1.5 trillion, while another market report showed 55.4% for at least a $1.5 trillion IPO market cap by December 31, 2027, and 23.5% for no IPO by that date [14][15]. These prediction-market prices are not guarantees or financial advice [7].

Key Dates & Catalysts

  • Expiration: September 08, 2026
  • Closes: June 01, 2027
Sources (15)
  1. 1OpenAI IPO: The CFO Named The Year. The Market Named Spring | OddsShopperoddsshopper.com
  2. 2OpenAI IPO will not happen in 2026 amid AI safety fears, Altman says | Reutersreuters.com
  3. 3Sam Altman: OpenAI won't go public this year as IPO now would come at an 'ill-advised moment' | Fortunefortune.com
  4. 4OpenAI IPO timeline delayed, Kalshi predictionscnbc.com
  5. 5EXCLUSIVE: OpenAI lays groundwork for juggernaut IPO at up to $1 trillion valuation | Reutersreuters.com
  6. 6OpenAI is not working on an IPO yet, CFO says | Reutersreuters.com
  7. 7OpenAI mulls funding round at $1.2 trillion valuation ahead...reuters.com
  8. 8OpenAI trims valuation target to $1.25tn after pitching higher priceft.com
  9. 9OpenAI seeks to accelerate fundraising ahead of Anthropic...reuters.com
  10. 10Exclusive-OpenAI seeks to accelerate fundraising ahead of Anthropic IPO, sources say By Reutersinvesting.com
  11. 11OpenAI Expects $70 Billion in Annualized Revenue by End of 2026finance.yahoo.com
  12. 12OpenAI 2025 financials leaked: $38.5B loss ahead of IPOqz.com
  13. 13OpenAI Leans Toward Holding Up I.P.O. Until Next Year - The New York Timesnytimes.com
  14. 14OpenAI IPOpolymarket.com
  15. 15OpenAI IPO Odds Fall to 55.4% After Company Rules Out 2026 Listing | TokenPosttokenpost.com

13. Related News

14. Historical Resolutions

Historical Resolutions: 2 markets in this series

Outcomes: 0 resolved YES, 2 resolved NO

Recent resolutions:

  • KXIPOOPENAI-26SEP01: NO (Sep 01, 2026)
  • KXIPOOPENAI-26OCT01: NO (Oct 01, 2026)