Live Odds · Updated October 24, 2026

OpenAI announces another Millennium Prize solution by...?

As of October 24, 2026, 06:55 PM ET, Polymarket traders price December 31, 2027 at 55.5% in OpenAI announces another Millennium Prize solution by...? — $975.1K traded so far.

Last updated October 24, 2026, 06:53 PM ET with live prices from Polymarket. 24h volume: $21.6K.
Leading outcome
December 31, 2027
56%
A 55.5% price implies roughly a 56-in-100 chance, set by traders risking real money.
24H −4.0 pts7D +5.0 pts30D −15.0 pts
December 31, 202755.5%
December 31, 202616.0%
Bid
55¢
Ask
56¢
Spread
1¢
Trade on Polymarket →
Range since September 09, 2026: 45.0% – 90.5% · Opened at 45.0%

Market facts

Event data
Event
OpenAI announces another Millennium Prize solution by...?
Category
AI, Math, Tech, OpenAI, Science, CMI, Astra
Scheduled end
December 31, 2027, 11:59 PM ET
Total volume
$975.1K
Volume (24h)
$21.6K
Liquidity
$50.7K
Markets
2
Leading outcome
December 31, 2027 — 55.5%
Resolution source
https://www.claymath.org/millennium-problems/

What is the current price?

Momentum & history

The leading outcome, December 31, 2027, is priced at 55.5%.

Price changes for the leading market — 24 hours: -4.0 pts; past week: +5.0 pts; past month: -15.0 pts.

Since September 09, 2026, December 31, 2027 has traded between 45.0% and 90.5%. It opened at 45.0% and last traded at 50.5%.

DayClose
Oct 12, 202654.5%
Oct 13, 202654.5%
Oct 15, 202651.5%
Oct 16, 202654.5%
Oct 18, 202650.5%
Oct 19, 202650.5%
Oct 20, 202650.5%

Who is favored to win?

Outcomes

December 31, 2027 is favored at 55.5%.

OutcomePriceImplied probability24h changeVolumeVolume share
December 31, 202756¢55.5%-4.0 pts$395.9K40.6%
December 31, 202616¢16.0%+0.5 pts$355.9K36.5%

See the full live book for this market on Polymarket

The leading market's spread is 1¢ (bid 55¢ / ask 56¢) — a tighter spread means cheaper round-trip trading.

How much has been traded?

Volume

$975.1K has been traded on this event in total, $21.6K of it in the last 24 hours, across 2 markets.

When does this market resolve?

Rules

This market is scheduled to end December 31, 2027, 11:59 PM ET.

This market will resolve to "Yes" if OpenAI, or an official representative of OpenAI, announces that OpenAI has solved any of the qualifying Millennium Prize Problems between market creation and the specified date, 11:59 PM ET. Otherwise, this market will resolve to "No". The qualifying problems are the Riemann Hypothesis, P versus NP, the Yang-Mills existence and mass gap problem, the Hodge Conjecture, and the Birch and Swinnerton-Dyer Conjecture (https://www.claymath.org/millennium-problems/). Announcements concerning the Navier-Stokes existence and smoothness problem will not qualify. A qualifying announcement must express that the problem has been solved; announcements of partial results or progress toward a solution will not qualify. The announcement must present the solution as the work of OpenAI, its researchers, or its models, alone or jointly with outside researchers. An announcement that only credits or congratulates outside researchers, including researchers who used OpenAI's models, compute, or research credits, will not qualify. No further confirmation from Clay Math Institute or any other organization is required. The primary resolution source for this market will be official information from OpenAI and/or its official representatives; however, a consensus of credible reporting may also be used.

Resolution source: https://www.claymath.org/millennium-problems/

What do the biggest traders hold?

Top holders

The largest current holder of the leading market holds 17,576 shares of Yes.

HolderOutcome heldSharesValue at current price
Opulent-RightYes17,576$9.8K
Embarrassed-RootNo10,205$4.5K
Accurate-SpiritYes9,000$5.0K
Grubby-ChandelierYes5,520$3.1K
Tricky-Invader-MolassesNo4,826$2.1K
Enchanting-TextureNo4,721$2.1K
Wobbly-ChainNo4,671$2.1K
Few-PreventionNo3,605$1.6K
Enraged-InviteYes2,900$1.6K
Murky-RhetoricYes2,143$1.2K

What are the latest trades?

Tape
BUY No — $4.3K at 41.6%BUY No — $965 at 42.0%SELL Yes — $770 at 55.0%
TimeOutcomeSidePriceSize
Oct 24, 05:03 PM ETYesBUY17.0%$10
Oct 24, 04:37 PM ETNoSELL44.0%$6
Oct 24, 02:31 PM ETYesSELL55.0%$770
Oct 24, 01:41 PM ETNoSELL44.0%$9
Oct 24, 01:21 PM ETNoSELL44.0%$4
Oct 24, 01:21 PM ETNoSELL44.0%$24
Oct 24, 01:21 PM ETNoBUY44.0%$3
Oct 24, 01:21 PM ETNoSELL41.0%$63
Oct 24, 01:21 PM ETYesSELL55.0%$90
Oct 24, 01:21 PM ETNoBUY44.0%$108

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Frequently asked questions

FAQ

What are the odds of OpenAI announces another Millennium Prize solution by...??

As of October 24, 2026, 06:53 PM ET, the leading outcome is December 31, 2027 at 55.5%. Next is December 31, 2026 at 16.0%. See the live book on Polymarket: https://polymarket.com/event/openai-announces-another-millennium-prize-solution-by?via=bro

How much money has been traded on OpenAI announces another Millennium Prize solution by...??

$975.1K in total volume, with $21.6K traded in the last 24 hours across 2 markets.

When does OpenAI announces another Millennium Prize solution by...? end?

The market is scheduled to end December 31, 2027, 11:59 PM ET. It resolves based on https://www.claymath.org/millennium-problems/.

What is the most likely outcome of OpenAI announces another Millennium Prize solution by...?, according to Polymarket traders?

December 31, 2027, priced at 55.5% as of October 24, 2026, 06:53 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.

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