Benjamin Bonzi wins priced at 14.0% on Kalshi, down 33 points, on $923K traded

Bonzi contract falls sharply

The Kalshi contract for a Benjamin Bonzi win was priced at 14.0%, down 33 probability points over 24 hours, with $923K traded, according to PredictionBubbles’ movers listing. The update was published on Oct 21, 2026, at 4:54 PM ET.

PredictionBubbles identified the contract as its largest downward move in sports. That is a category-specific distinction, not a claim that Bonzi led declines across the entire board, which tracks markets on Kalshi and Polymarket.

How the ranking works

According to PredictionBubbles, the supplied board used venue prices retrieved on 21 Oct 2026, 20:46 UTC, and refreshes every 15 minutes. It ranks changes over 24 hours in probability points—not relative percentage changes. The Bonzi decline therefore represents a 33-point shift in pricing, rather than a 33% reduction.

The ranking covers 1,963 markets with lifespans longer than 14 days and excludes same-week fixtures. Only open contracts with a valid day-earlier comparison qualify. Trading volume and liquidity provide context but do not affect a contract’s position in the movement ranking.

The supplied material does not identify the event underlying the Bonzi contract, its settlement terms or a catalyst for the decline. The $923K trading figure adds context to the repricing, but does not establish how much liquidity was available or why traders changed their assessment.

What it means for prediction markets

• A lower market estimate: The 14.0% price reflects a sharp reduction in the contract’s implied probability, not confirmation of the eventual result.
• A limited ranking claim: Bonzi’s distinction applies to downward sports moves within PredictionBubbles’ eligible market universe.
• Context remains incomplete: Without the underlying event, resolution rules or an identified catalyst, the price move alone cannot explain the change in expectations.