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What will OpenAI's IPO valuation be?

8 outcomesSettles Jan 01, 2028 (426d)

Favorite21%$1.25T–$1.5T

Favorite

21%

$1.25T–$1.5T

Runner-up

20%

<$1T

Biggest 24h move-4 pts

17%

$1.5T–$1.75T

24h volume

$7K

$349K open interest

Current odds

one winner

$1.25T–$1.5T 21%

<$1T 20% -3

$1.5T–$1.75T 17% -4

$1.75T–$2.0T 14% +1

$2.0T–$2.25T 7%

$1.0T–$1.25T 5%

$2.5T+ 4%

$2.25T–$2.5T 3%

Odds over time

daily

Daily closing odds for the leading outcomes.

All outcomes

Outcome	Odds	24h change	24h volume	Open interest
$1.25T–$1.5T	21%	—	$30	$43K
<$1T	20%	-2.6	$3K	$43K
$1.5T–$1.75T	17%	-3.6	$3K	$43K
$1.75T–$2.0T	14%	+1.0	$0	$43K
$2.0T–$2.25T	7%	+0.8	$0	$44K
$1.0T–$1.25T	5%	—	$230	$43K
$2.5T+	4%	—	$0	$44K
$2.25T–$2.5T	3%	—	$10	$43K

How it settles

This market will resolve according to the implied equity valuation of OpenAI at its initial public offering (IPO) price. The IPO valuation is defined as the final IPO price per share multiplied by the total number of shares outstanding on a fully diluted basis, as disclosed in the final prospectus filed with the U.S. Securities and Exchange Commission. The IPO price will be the final offering price to the public as stated in the final prospectus. Trading prices after listing, including the opening trade, intraday prices, or closing price on the first day of trading, will not be considered. Indicated or preliminary price ranges, including any ranges disclosed in earlier filings or amendments, will not be considered. If the calculated valuation falls 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.

Odds are market prices, not forecasts or advice. Full terms on Polymarket.