4cast Prediction Market

Propose a new market

Create a YES/NO market or a multi-outcome market (2–5 options). An admin will review before it goes live.

Add a cover image via URL or upload (JPEG, PNG, GIF, WebP, max 5MB).

Starting probability for YES (e.g. 70 = 70% YES / 30% NO). Must be between 0.1 and 99.9.

When trading should close for this market.

Liquidity and depth are set automatically when your market is approved.