Kalshi
An exchange for trading on real-world event outcomes
Prediction markets for following and trading event outcomes

Polymarket is a prediction market where people trade shares tied to the outcomes of real-world events. Markets span politics, economics, sports, technology, and culture, with prices reflecting what participants are currently willing to pay for each outcome. Visitors can browse questions, compare implied probabilities, and follow price charts and trading volume as news develops.
Each market has rules that define how its result will be determined. Eligible users can buy or sell outcome shares before resolution, while readers can use the public market pages to track changing expectations without placing a trade. Topic filters and search make it easier to follow a particular event or area of interest.
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