Prediction markets are generally well-calibrated: outcomes priced around 70% tend to occur roughly 70% of the time. Research on markets like the Iowa Electronic Markets, and more recent studies on Polymarket during the 2024 U.S. election, found they matched or outperformed both polling averages and expert forecasts — largely because traders have real money on the line rather than just an opinion.

"Chance" is the market-implied probability of an outcome, derived from its live trading price. A price of $0.72 for "Yes" means traders collectively estimate roughly a 72% likelihood — Yes and No prices always add up to close to $1.00. This updates continuously as new trades happen, not on a fixed schedule.

Both are real-money platforms where you trade on the outcome of future events, but they're structured differently. Polymarket operates internationally on blockchain-based markets, covering a broad range of topics from crypto prices to politics and pop culture. Kalshi is a U.S.-based, CFTC-regulated exchange with a narrower but more tightly regulated set of markets. CryptoRank aggregates data from both so you can compare odds side by side.

An analyst forecast is one person's or firm's opinion, usually updated on a fixed schedule. A prediction market price is a continuously updated, crowd-sourced probability backed by real capital — it can move within minutes of new information, reflecting everyone actively trading the market, not a single source.

Kalshi operates as a CFTC-regulated exchange in the United States. Polymarket operates internationally and has been expanding its regulated presence in the U.S. Rules, availability, and restrictions vary by platform and region — always check each platform's own terms for where you're located.