Who is favored in "How much will OpenAI raise in its IPO?"?

As of November 6, 2026, <$30B is the favorite at 38.5%, followed by $90B–$100B at 37.5%.

When does this market resolve?

The market is scheduled to close on January 1, 2028. It resolves under Polymarket's rules once the outcome is known, which can be earlier or later than the listed date.

How much has been traded?

$11K in total and $30 in the last 24 hours, with about $10K of resting liquidity.

Can I trade this market?

Polymarket restricts access by location; the US version (Polymarket US) and the offshore site have different rules and fee schedules. Check availability in your jurisdiction. BetG8 earns a referral fee from the Polymtrade links on this page.

Home / Markets / How much will OpenAI raise in its IPO?

Live market data

How much will OpenAI raise in its IPO?: live odds and probabilities

Name: How much will OpenAI raise in its IPO? prediction market prices
Creator: BetG8

The market favorite is <$30B at 38.5%, ahead of $90B–$100B at 37.5%. $11K traded across 9 outcomes.

Updated 2026-11-06 02:17 UTC · Source: Polymarket · 18+ · Market prices, not predictions or advice

Favorite

38.5%

<$30B · Trade →

24h move

+2.7

pts · 7d +4.2

Volume

$11K

24h $30 · liquidity $10K

Closes

January 1, 2028

421 days left

Finance IPO Big Tech sam altman IPOs

All outcomes

Outcome	Probability	24h	7d	Volume	Spread
<$30B	38.5%	+2.7	+4.2	$986	72.2¢
$90B–$100B	37.5%	+2.1	-0.1	$748	74.5¢
$100B+	26.5%	-5.0	-11.0	$3K	11.0¢
$80B–$90B	11.6%	0.0	+1.0	$703	21.7¢
$40B–$50B	6.7%	0.0	-11.3	$2K	10.0¢
$70B–$80B	6.2%	0.0	+0.5	$715	11.6¢
$60B–$70B	4.5%	0.0	-1.0	$756	9.0¢
$50B–$60B	4.1%	+1.0	+1.0	$2K	6.4¢
$30B–$40B	2.1%	-1.8	-2.1	$679	3.5¢

Prices are the Polymarket mid or last trade at 2026-11-06 02:17 UTC. A price of 64¢ implies roughly a 64% chance. Prices include spread and are not forecasts by BetG8.

Price history

<$30B$90B–$100B$100B+$80B–$90B

Market rules and resolution

This market will resolve according to the total gross proceeds raised by OpenAI in its initial public offering (IPO) at the time of pricing. The amount raised is defined as the aggregate dollar value of shares sold at the final offering price at the time of IPO pricing, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission. Shares sold pursuant to any overallotment option (greenshoe) will not be considered. Secondary sales of existing shares by current shareholders will be included only to the extent that they are part of the IPO offering at pricing and reflected in the total gross proceeds. Private secondary transactions conducted outside of the IPO will not be considered. If the total proceeds fall exactly on a boundary between two ranges, this market will resolve to the higher range. If OpenAI does not complete an IPO by December 31, 2027, 11:59 PM ET, this market will resolve to the lowest bracket. The primary resolution source will be the final prospectus filed with the SEC; however, a consensus of credible reporting may also be used.

How to read this market

Each share pays $1 if its outcome happens. Buying <$30B at 39% risks 39¢ to win 62¢. Prices move with news and order flow, and thin markets can swing on small trades, so check volume and spread before treating a number as the crowd's view. See our guides to implied probability and how markets resolve.

Frequently asked questions

Who is favored in "How much will OpenAI raise in its IPO?"?: As of November 6, 2026, <$30B is the favorite at 38.5%, followed by $90B–$100B at 37.5%.
When does this market resolve?: The market is scheduled to close on January 1, 2028. It resolves under Polymarket's rules once the outcome is known, which can be earlier or later than the listed date.
How much has been traded?: $11K in total and $30 in the last 24 hours, with about $10K of resting liquidity.
Can I trade this market?: Polymarket restricts access by location; the US version (Polymarket US) and the offshore site have different rules and fee schedules. Check availability in your jurisdiction. BetG8 earns a referral fee from the Polymtrade links on this page.

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Data: Polymarket Gamma and CLOB APIs, fetched by BetG8 at the time shown above. Venues may restrict access by location. 18+ only.