What you actually pay on Polymarket

The number on the screen is not the number you fill at. Paste a market and a size — see the spread, the fee, and the real break-even probability, computed from the venue’s own published data.

Works with any Polymarket market — paste the link from the page you’re looking at.

Free, anonymous, no account needed.

DAUDIT examines decisions. It is not investment advice, it does not recommend positions, and it cannot trade on your behalf. Read more.