Why Prediction Market Signals Rarely Override Crypto Investors’ Existing Bets

Prediction markets now give crypto investors live odds for price targets, regulation, and economic events. Yet research has not established how often those signals change portfolios. The stronger evidence shows how market structure and investor confidence shape the way traders interpret them.

Event-contract trading has expanded sharply. Combined monthly volume on Kalshi and Polymarket rose from under $5 billion in September 2025 to about $24 billion in April 2026

Regulatory attention has increased alongside that growth. On Aug. 12, the New York City Council disclosed an investigation into alleged marketing practices across major platforms. Wider reach, however, does not prove that event-contract odds change crypto portfolios.

What Prediction Market Odds Actually Measure

A binary contract pays $1 when a defined event occurs and zero when it does not. A contract priced…

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