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This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated …
Full venue event description
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue scheduled ends · 1 date
7 contracts
Dates supplied by the venue. An end date is not confirmation of a result or settlement.
7Contracts in the venue roster
1In HowSure’s current catalog
—Two-sided quotes in the retained snapshot
No event capture yetFollow to start daily event snapshots
1 of 7 contracts have a displayed price observation. 1 currently fresh.
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About coverage & following
Each row is a separate contract with its own conditions. Following saves an event snapshot now and requests a daily refresh for My Brief. History begins with the first saved capture; these are daily observations, not continuous collection.
Prices are separate YES midpoints, not executable quotes or a normalized event distribution. They can come from different observation times. No price is inferred from another outcome.
Event outcomes
7 of 7 contracts · open a contract for its conditions and cost
<500B
Will OpenAI’s market cap be less than $500B at market close on IPO day?
Not collected · Not supplied
—YES midpoint unavailable
No matching book observation was retained for this contract.
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.
500–750B
Will OpenAI’s market cap be between $500B and $750B at market close on IPO day?
Not collected · Not supplied
—YES midpoint unavailable
No matching book observation was retained for this contract.
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.
750B–1T
Will OpenAI’s market cap be between $750B and $1T at market close on IPO day?
Not collected · Not supplied
—YES midpoint unavailable
No matching book observation was retained for this contract.
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.
1T–1.25T
Will OpenAI’s market cap be between $1T and $1.25T at market close on IPO day?
Not collected · Not supplied
—YES midpoint unavailable
No matching book observation was retained for this contract.
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.
1.25T–1.5T
Will OpenAI’s market cap be between $1.25T and $1.5T at market close on IPO day?
Not collected · Not supplied
—YES midpoint unavailable
No matching book observation was retained for this contract.
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.
1.5T+
Will OpenAI’s market cap be $1.5T or greater at market close on IPO day?
Not collected · Not supplied
—YES midpoint unavailable
No matching book observation was retained for this contract.
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.
No IPO by December 31, 2026
Will OpenAI not IPO by December 31, 2026?
Collected catalog midpoint · fresh · 2026-10-16 07:19:34.316 UTC
This market will resolve based on OpenAI's market capitalization at the closing price on its first day of trading.
If no IPO occurs by December 31, 2026, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2026".
Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day.
If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In the event of an interruption in the course of the normal trading session on OpenAI’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Venue descriptions and declared sources are not independent verification or confirmation of settlement. Retained book details belong to the event capture; the displayed price may come from a newer catalog observation. Book receipt time is distinct from the provider timestamp.