Protocol
Money mechanics
Each winning contract pays 0.001 ETH. Makers pay no fee; taker fees are capped at 2%.
Collateral, payouts, and fees
CollateralETH
Deposited into the hub contract
Winning contract0.001 ETH
Losing contracts settle at 0 ETH
Fees0% / 2%
Maker / taker
Payouts and voided markets
A winning contract pays 0.001 ETH, while a losing contract settles at 0 ETH. If a market is voided, both Above and Below contracts redeem at 50%: 0.0005 ETH per contract.
If a market remains unresolved seven days after expiry, anyone can void it. This backstop is permissionless.
Trading fees
Makers pay no fee. Taker fees are capped at 2%, and every current rolling market is set to exactly 2%. The per-market rate is exposed as feeBps by GET /v1/markets.
Taker fees use the cheaper side of the binary pair. At a 40¢ price and a 2% fee rate, the fee is 2% of the 40¢ leg.
fee = quantity × min(price, 100 − price) × fee rate