Resolution criteria on PolyGram: This market will resolve to "Yes" if OpenAI completes an Initial Public Offering (IPO) by the listed date ET, as confirmed by official company announcements and credible news sources. Otherwise, this market will resolve to "No". The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange. If OpenAI is acquired by another company that is already public, this market will immediately resolve to "No." The resolution source for this market is a consensus of credible reporting.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| December 31, 2025 | 0% YES | 100% NO |
| June 30, 2026 | 1% YES | 99% NO |
| December 31, 2026 | 28% YES | 72% NO |
OpenAI's path to public markets remains uncertain, with the company's ownership structure and strategic direction in flux. Founded in 2015 as a non-profit, OpenAI converted to a capped-profit model in 2019 and has raised substantial capital from Microsoft and other investors. The current 0% implied probability on Polymarket's order book reflects the absence of any formal IPO timeline or public commitment from leadership. Sam Altman has made occasional references to eventual public ownership, but no concrete plans have been announced. The settlement window extends through end-2026, providing a three-year horizon for potential developments.
Comparable technology exits offer limited precedent for OpenAI's specific situation. Unlike typical venture-backed startups pursuing IPOs, OpenAI operates under a hybrid governance structure with significant institutional backing and strategic partnerships that complicate traditional public market entry. Companies like Anthropic and other frontier AI developers have similarly avoided IPO announcements, instead raising private capital at escalating valuations. The regulatory environment for AI companies remains unsettled, which may influence timing calculations for any public listing.
Key catalysts include formal announcements from OpenAI's board regarding capitalisation strategy, material changes in Microsoft's stake or strategic relationship, and shifts in AI sector sentiment affecting comparable valuations. Recent reporting from Reuters and Bloomberg has focused on OpenAI's internal restructuring and fundraising rather than public market preparation. Traders should monitor quarterly earnings reports from Microsoft for commentary on its OpenAI investment, regulatory developments affecting AI governance, and any statements from Altman regarding long-term ownership structure. The absence of movement towards IPO mechanics—such as auditor selection or SEC filing preparation—currently supports the market's zero probability assessment.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.
The mechanics for trading "OpenAI IPO by...?" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$1.2M in lifetime turnover and $25K of resting liquidity puts this market in the top 2% by volume for tech contracts on PolyGram. Order-book depth is modest — expect a couple of cents of slippage on $1k+ trades.
Last 24 hours alone saw $2K in turnover, consistent with the market's lifetime daily-average pace.
The market has been open for 6 months — long enough that the order book is mature and price is well-anchored to fundamentals.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a 2-hour dispute window opens, and if uncontested the payout is final. Contested outcomes escalate to UMA token holders.
This prediction market is scheduled to close on 31 December 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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