
+0.1%
Will Microsoft be the largest company in the world by market cap on June 30?
24h Vol
$458.4K
Liquidity
$212.5K
Spread
0%
6/30/2026
View marketFinance
Polymarket market
Track live probability, outcome prices, volume, liquidity, and resolution details for Will OpenAI IPO by June 30 2026?. The market currently shows a live probability of 1%, $2.9K in 24h volume, and $79.8K in liquidity.
Probability
1%
24h Volume
$2.9K
Liquidity
$79.8K
This market asks whether OpenAI will complete an initial public offering by June 30, 2026. Because OpenAI is one of the most closely watched private AI companies, any filing, listing plan, or corporate change involving its ownership structure can quickly affect how this market resolves.
The question is whether OpenAI will sell shares to the public on a recognized stock exchange by the deadline listed in the market rules. The event date matters because the market resolves on whether that IPO has been completed by June 30, 2026 ET, not whether OpenAI has discussed going public or laid groundwork for it. One special rule to note: if OpenAI is acquired by another company that is already public, the market resolves to No immediately.
OpenAI is a major private company, and an IPO would be a significant corporate milestone with broad implications for governance, ownership, and public-market access. The uncertainty here is about timing and structure: a company can remain private for years, can prepare for a listing without finishing one, or can change course entirely through acquisition or other corporate actions. The market is pricing disagreement over whether OpenAI will actually cross the finish line before the June 30, 2026 cutoff.
The biggest price-moving developments would be official OpenAI announcements about an IPO, SEC registration filings, underwriting arrangements, or a public listing date. Credible reporting that a listing has been delayed, withdrawn, or replaced by another corporate transaction would also matter, especially if it points away from a completed IPO before the deadline. A confirmed acquisition by an already public company would be especially important because the market rules say that outcome triggers an immediate No.
The current market price implies roughly a 1% chance for the leading outcome, based on live Polymarket pricing. That number is not a prediction from PredictionNinja and it is not a guarantee; it is the current crowd-priced view of the market and can change quickly when new information appears.
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+0.1%
24h Vol
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Liquidity
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Spread
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6/30/2026
View marketReaders should watch for official company statements, SEC filings, and any credible reporting that confirms whether OpenAI has actually completed a public listing before the deadline. The key resolution question is not whether OpenAI is preparing for an IPO, but whether the IPO has been completed on or before June 30, 2026 ET. Because the rules rely on a consensus of credible reporting, the main ambiguity to verify is whether a reported transaction counts as a true IPO on a recognized exchange or is instead another corporate event such as a merger or acquisition.
Track live probability, outcome prices, volume, liquidity, and resolution details for Will OpenAI IPO by June 30 2026?. The market currently shows a live probability of 1%, $2.9K in 24h volume, and $79.8K in liquidity.
Track live finance prediction markets focused on interest rates, inflation, stock market events, central bank decisions, and global financial forecasting trends.
Yes
0.9%
No
99.2%
Polymarket has not provided a clear end date for this market yet.
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.
Probability signal
The current price implies a lower-probability outcome, which can make the market more sensitive to surprise news.
Liquidity context
Liquidity is relatively deep for a prediction market page, so quoted prices may be more reliable than very thin markets.
Spread
The bid-ask spread is tight, which usually points to a more actively priced market.
Recent movement
No 24h movement is available yet.
The current displayed probability is 1%, based on the latest normalized Polymarket data available to PredictionNinja.
The rules and resolution criteria are pulled from the market description provided by Polymarket when available.
Prediction markets can move whenever traders react to new information, liquidity changes, injuries, announcements, news, or other event-specific developments.
No. PredictionNinja displays market data and context for research only. It is not financial, legal, betting, or investment advice.

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