Infiniti Intelligence Hourly Briefing — Oct 26, 2026 · 2:09 PM ET

The Polymarket contract asking whether OpenAI will announce another Millennium Prize solution by December 31, 2026 was priced at 6.0%, down 8.5 probability points over 24 hours, with $380K traded, according to PredictionBubbles’ market listing.

PredictionBubbles placed the OpenAI-specific contract among declining technology markets on its movers and tech boards. The supplied material identifies the repricing but provides no underlying announcement or reporting that explains the drop.

How the move is measured

PredictionBubbles ranks markets by the size of their 24-hour probability-point changes, rather than their relative percentage changes. Trading volume and liquidity provide context but do not affect the ranking, according to the outlet.

The supplied movers snapshot recorded venue prices on 26 Oct 2026, 18:18 UTC. PredictionBubbles refreshes the board every 15 minutes using prices from Polymarket and Kalshi, and excludes markets without a valid 24-hour comparison.

What the price does—and does not—show

The 6.0% reading reflects a low market-implied probability for the specific OpenAI announcement by the stated deadline. It is not evidence that a mathematical result has been established or rejected, and the wording “another” does not independently verify any earlier solution.

The $380K traded figure adds activity context, but the supplied material does not establish the contract’s order-book depth or identify what drove traders to reprice it. The decline therefore documents a change in market expectations, not a confirmed change in OpenAI’s progress.

What it means for prediction markets

• The move is in points: The 8.5-point decline measures the change in implied probability, not an 8.5% relative fall.
• The event is narrowly defined: The contract concerns an OpenAI announcement by December 31, 2026, rather than AI mathematical progress generally.
• The catalyst remains unclear: Neither the trading figure nor the movers ranking establishes why the price fell; the supplied material also does not include detailed resolution criteria.

Prediction markets recorded $119.0B in contract volume over the last 30 days, with Kalshi accounting for 76%, according to DeFi Rate. The figures distinguish the face value of contracts traded from the dollars participants actually paid.

Face value versus trading spend

DeFi Rate measures contracts at their $1 face value. On that basis, the $119.0B headline total compares with $28.7B in dollars actually paid over the same 30-day period. Those are separate measures of activity, not interchangeable estimates of spending.

Kalshi’s 76% share places most of the reported contract volume on one platform. That percentage describes its share of the headline activity measure; the supplied material does not separately identify Kalshi’s share of dollars paid.

DeFi Rate also reports $5.7B for the last 24 hours. The supplied excerpt does not explicitly identify whether that shorter-period figure uses face value or dollars paid, limiting direct comparisons with the two 30-day totals.

What it means for prediction markets

• Measurement matters: The $119.0B total reflects contracts valued at $1 each, while $28.7B represents dollars actually paid. Readers should retain that distinction when comparing activity figures.
• Volume is concentrated: Kalshi handled 76% of reported 30-day contract volume, making its activity central to the aggregate.
• The daily figure needs context: The $5.7B reading alone does not establish whether trading is accelerating; a clearly comparable measure is needed.