Infiniti Intelligence Hourly Briefing — Oct 28, 2026 · 11:24 PM ET

Anthropic’s year-end odds retreat

Polymarket priced Anthropic’s chance of having the best AI model at the end of December 2026 at 41.5%, down 15.0 percentage points, with $456K traded, in the supplied update published Oct 28, 2026 at 11:24 PM ET.

The decline marks a substantial reassessment of Anthropic’s prospects, but the supplied material does not establish a catalyst. The accompanying news summary reported no significant new platform headline in the preceding 30 minutes; its search surfaced previously used or excluded items.

What the market data establishes

According to predictionbubbles.net, its movers board compares probabilities over 24 hours and refreshes every 15 minutes using prices from Polymarket and Kalshi. The supplied page records a venue-data snapshot of 29 Oct 2026, 03:16 UTC. Its rankings measure changes in percentage points, not relative percentage changes.

The page also identifies Gemini as a biggest mover in a market asking which AI will be best on Dec 31, 2026. However, the supplied extract gives neither Gemini’s price nor the direction or size of its move. It therefore does not establish how Gemini’s repricing relates to Anthropic’s decline.

The extract does not reproduce an Anthropic market card or explain how “best AI” will be determined. The 41.5%, 15.0-point decline and $456K figures come from the supplied headline update; the available material does not specify the volume figure’s measurement period or provide order-book depth.

What it means for prediction markets

• The move is a pricing signal, not a model-performance result. Anthropic’s lower implied probability shows a change in market expectations, not proof that its technology has deteriorated.
• Causation remains unverified. The absence of a fresh headline in the 30-minute search window does not explain a move measured over 24 hours.
• Volume and liquidity are distinct. The reported $456K supplies trading context but does not establish how much liquidity supported the repricing.
• Resolution criteria matter. Without the market’s definition of “best AI,” the supplied material cannot connect these odds to a specific performance benchmark.

Jackson Chourio’s Kalshi contract to win Pro Baseball Championship Series MVP was priced at 16.0%, down 22.0 probability points, with $757K traded, in the supplied update published Oct 28, 2026 · 11:24 PM ET.

According to PredictionBubbles’ movers-board summary, the contract was among the largest downward moves in sports. The supplied material does not identify a game result, announcement or other catalyst for the decline.

How the move is measured

PredictionBubbles ranks changes over 24 hours using probability-point differences, rather than relative percentage changes. Trading volume provides context but does not determine a contract’s position in the rankings.

According to predictionbubbles.net, the board draws prices directly from Polymarket and Kalshi and updates every 15 minutes. The supplied snapshot records venue data read on 29 Oct 2026, 03:16 UTC.

Limits of the snapshot

The board’s coverage spans 1,982 markets lasting longer than 14 days, with same-week fixtures excluded. Only open contracts with a valid 24-hour comparison qualify; resolved markets and those too new to have a comparable price are omitted.

The supplied page text explains that methodology but does not reproduce Chourio’s individual listing. The headline supplies the contract’s price, decline and traded amount, while the summary identifies its placement among downward sports movers. Neither establishes the contract’s available liquidity or explains what drove the repricing.

What it means for prediction markets

• The decline is measured in points: the 22.0-point move represents a change in the market-implied probability, not a 22.0% relative fall.
• Volume and liquidity are different: $757K traded provides activity context, but the supplied material does not show order-book depth.
• The catalyst remains unverified: the snapshot documents a lower price for Chourio’s MVP outcome, not why traders changed their assessment or whether that assessment will prove correct.