How are prices set?
Prices are set by an automated market maker (AMM) and already include a spread, so there's no separate trading fee. When people buy one side its price rises and the other falls; the price moves continuously and the quote at the moment of trade is binding. The two sides won't sum to exactly $1.00 — that gap is the spread.
What is a contract worth?
Each contract in the correct outcome redeems for $1.00 when the market resolves; a contract in the wrong outcome is worth $0.00. If you close early, you receive the current market price per contract instead of the $1.00 a winning outcome would eventually pay.
Can I sell before a market resolves?
Yes. Open the position in your Portfolio (or use Sell on the market page), switch the panel to Sell, enter the number of contracts (or tap Max), review the estimated proceeds and confirm. A 1% minimum-received floor protects against excessive slippage — if proceeds would fall below it, the sell won't execute.
What is slippage, and are there position limits?
Slippage is the gap between the expected and executed price, caused by your own trade moving the AMM — larger trades in thinner markets move it more. For a big position in a low-liquidity market, consider splitting it into smaller trades. There are no operator-set position limits today; your maximum is your wallet balance and the pool's available liquidity.