Each round compares Bitcoin's price at the end of a window with its price at the start. If it ends higher, Up wins; if lower, Down wins. How a tie is settled depends on the market's rules. Rounds run every 5 minutes, 15 minutes, hour, day and week, and a new round opens when one closes.

Each market's rules name the exact feed and time. 5- and 15-minute rounds use the Chainlink BTC/USD feed, hourly and daily rounds use Binance BTC/USDT candles, and weekly rounds use the Pyth Pro BTC/USD feed.

Yes. You can sell your shares at the current price at any time before the market closes. Holding to the end pays $1 per share if your side wins.

Traders do. Prices come from supply and demand on an on-chain order book and automated liquidity, not from Limitless. A price of 55¢ on Up means traders give about a 55% chance that Bitcoin ends the round higher.

Yes. Each past round keeps its own page with its final result, while the market link always points to the round that is live now.