Live Odds · Updated October 24, 2026

OpenAI’s valuation end of October 2026?

As of October 24, 2026, 06:31 PM ET, Polymarket traders price $1.20-$1.30T at 47.4% in OpenAI’s valuation end of October 2026? — $32.1K traded so far.

Last updated October 24, 2026, 06:19 PM ET with live prices from Polymarket. 24h volume: $922.
Leading outcome
$1.20-$1.30T
47%
A 47.4% price implies roughly a 47-in-100 chance, set by traders risking real money.
24H −6.8 pts7D +42.2 pts30D +37.5 pts
$1.20-$1.30T47.4%
$1.30T+37.9%
Bid
44¢
Ask
51¢
Spread
8¢
Trade on Polymarket →
Range since August 25, 2026: 3.1% – 51.9% · Opened at 25.5%

Market facts

Event data
Event
OpenAI’s valuation end of October 2026?
Category
AI, llm, OpenAI, Finance, chatgpt, Big Tech, Privates, OpenAI IPO, sam altman, Recurring
Scheduled end
October 31, 2026, 01:00 PM ET
Total volume
$32.1K
Volume (24h)
$922
Liquidity
$3.0K
Markets
9
Leading outcome
$1.20-$1.30T — 47.4%
Resolution source
https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data

What is the current price?

Momentum & history

The leading outcome, $1.20-$1.30T, is priced at 47.4%.

Price changes for the leading market — 24 hours: -6.8 pts; past week: +42.2 pts; past month: +37.5 pts.

Since August 25, 2026, $1.20-$1.30T has traded between 3.1% and 51.9%. It opened at 25.5% and last traded at 51.9%.

DayClose
Oct 13, 20265.3%
Oct 15, 20265.5%
Oct 16, 20264.8%
Oct 18, 20266.7%
Oct 19, 20265.5%
Oct 20, 202629.6%
Oct 23, 202651.9%

Who is favored to win?

Outcomes

$1.20-$1.30T is favored at 47.4%.

OutcomePriceImplied probability24h changeVolumeVolume share
$1.20-$1.30T47¢47.4%-6.8 pts$3.5K10.8%
$1.30T+38¢37.9%-1.9 pts$4.7K14.7%
$1.10-$1.20T5¢5.1%+4.4 pts$3.9K12.2%
$900B-$1.00T2¢1.9%+0.1 pts$6.3K19.5%
$1.00-$1.10T1¢0.8%—$7.3K22.7%
$600-$700B1¢0.7%+0.1 pts$1.6K4.9%
$800-$900B1¢0.5%+0.2 pts$1.6K5.1%
<$600B0¢0.4%+0.1 pts$1.9K6.0%
$700-$800B0¢0.4%+0.1 pts$1.3K4.2%

See the full live book for this market on Polymarket

The leading market's spread is 8¢ (bid 44¢ / ask 51¢) — a tighter spread means cheaper round-trip trading.

How much has been traded?

Volume

$32.1K has been traded on this event in total, $922 of it in the last 24 hours, across 9 markets.

When does this market resolve?

Rules

This market is scheduled to end October 31, 2026, 01:00 PM ET.

This market will resolve according to OpenAI's private market valuation, as measured by the NPM Price reported by Nasdaq Private Market, LLC (NPM) for the last trading day of the specified month. If the determined value falls exactly on the boundary between two brackets, this market will resolve to the higher bracket. NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day. If NPM has not published relevant data for the last trading day of the specified month by 1:00 PM ET on the day following the last trading day of the specified month, this market may remain open until 11:59 PM ET on the third business day following the last trading day of the specified month. If no further data is released by that time, the market will resolve according to the data available. If NPM ceases publishing relevant data prior to the end of the specified period, this market will resolve based on the NPM data published for the period prior to the cessation of coverage, as well as any applicable public market capitalization data following an IPO or direct listing. If the company completes an IPO or direct listing before the end of the specified period, this market will consider the company’s public market capitalization on the last trading day of the specified month. … (condensed)

Resolution source: https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data

What do the biggest traders hold?

Top holders

The largest current holder of the leading market holds 1,254 shares of No.

HolderOutcome heldSharesValue at current price
0xa5ef39c3…No1,254$659
Immaterial-SecretariatYes658$312
Unwilling-EvocationYes200$95
Teeming-PuppetYes195$93
Fair-TanYes148$70
Piercing-FormationYes119$56
Belated-GlueNo86$45
Oddball-CofactorYes85$40
Gleaming-HandlebarNo80$42
Amazing-Antelope-ShakedownNo77$41

What are the latest trades?

Tape
BUY Yes — $207 at 55.5%BUY No — $75 at 99.8%BUY No — $75 at 99.8%
TimeOutcomeSidePriceSize
Oct 24, 04:12 PM ETNoSELL45.1%$9
Oct 24, 04:12 PM ETNoBUY45.3%$9
Oct 24, 04:08 PM ETYesBUY1.0%$0
Oct 24, 04:08 PM ETYesBUY3.4%$1
Oct 24, 04:08 PM ETYesBUY42.2%$14
Oct 24, 04:07 PM ETYesBUY40.5%$14
Oct 24, 11:52 AM ETYesBUY3.4%$1
Oct 24, 11:52 AM ETYesBUY1.0%$0
Oct 24, 11:52 AM ETYesBUY36.7%$10
Oct 24, 09:24 AM ETYesSELL0.6%$0

Related markets

More AI

Frequently asked questions

FAQ

What are the odds of OpenAI’s valuation end of October 2026??

As of October 24, 2026, 06:19 PM ET, the leading outcome is $1.20-$1.30T at 47.4%. Next is $1.30T+ at 37.9%. See the live book on Polymarket: https://polymarket.com/event/openais-valuation-end-of-october-2026?via=bro

How much money has been traded on OpenAI’s valuation end of October 2026??

$32.1K in total volume, with $922 traded in the last 24 hours across 9 markets.

When does OpenAI’s valuation end of October 2026? end?

The market is scheduled to end October 31, 2026, 01:00 PM ET. It resolves based on https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data.

What is the most likely outcome of OpenAI’s valuation end of October 2026?, according to Polymarket traders?

$1.20-$1.30T, priced at 47.4% as of October 24, 2026, 06:19 PM ET. Prices are implied probabilities backed by real-money trading.

Browse the live odds index, today's biggest movers, and Whale Watch for the largest positions.

⚠️ Not financial advice: odds swing hard on news. Never bet money you can't afford to lose, and always read a market's resolution rules before trading.

Trade it on Polymarket

Prices move fast. Check the live book, read the resolution rules, and size small while you learn.

Sign Up on Polymarket

New here? Start with the complete beginner guide, then run any stake through the payout calculator before you trade.