About Prediction Ticker

Prediction Ticker shows what prediction markets think will happen, side by side across venues.

Where the numbers come from

Prices come from the public market data of Polymarket and Kalshi. A price is the cost of a contract that pays $1 if an outcome happens, so it reads as a probability: 63¢ means traders put the chance at about 63%. We show the last trade, or the midpoint of the best bid and ask when the order book is tight.

We match the same question across venues by comparing titles and dates. Matches can be wrong, and venues often word their rules differently, so always read each venue's resolution rules before comparing.

What we are not

We don't run markets, take trades or hold money. We're independent and not affiliated with or endorsed by Kalshi or Polymarket. Some links to venues may be affiliate links, which means we may earn a commission if you sign up; this never changes the prices we show.

Questions or corrections: use the contact details on our privacy page.