The Spread
Your Local Market
Not all prediction markets are created equal. We grade every House, Senate, and gubernatorial market daily on volume, spreads, and open interest -- so you know which prices to trust.
The SpreadThe Market Grades API
Our daily prediction market grades are now available as a free, public JSON API -- and you can try it right here in your browser with our interactive terminal.
Welcome to The Heat Sheet
Introducing a new kind of political analysis publication -- one built on calibration, transparency, and accountability.