How Yes / No markets resolve

Each round asks a single question: will the BTC/USD price finish above the open after 60 seconds?

When a round opens, the oracle price at that instant is recorded as the open price (shown as "Opened at" on the market page). Trading runs the full 60 seconds. The close price is the time-weighted average (TWAP) of the oracle over the last 10 seconds of the round — then open and close are compared.

Resolution is automatic and instant. There is no human judgment, review window, or appeal — the two index prints are the only inputs.

Open and close both come from Omnibook's BTC oracle: the median of the live trade price on five major exchanges — Binance, Bybit, OKX, Kraken, and Bitget — each read directly over its own WebSocket (BTC perpetual-futures streams). Taking the median of five independent venues means no single exchange's glitch, outage, or wick can move the number that decides a round.

The oracle publishes a fresh price four times a second, and only when at least three of the five feeds are fresh — a quorum, so a couple of feeds dropping out can neither pin nor spoof the price. Any feed whose last trade has gone stale is excluded until it recovers. The open is the last-good median at round open; the close is the true TWAP of that same sequenced feed over the final 10 seconds (each tick's price holds until the next).

The live oracle price is broadcast in real time over Omnibook's public WebSocket — the very feed this chart reads — so anyone can subscribe and verify every print as it happens.

Every contract settles at $1.00 or $0.00. When the clock hits zero, winning contracts are credited $1.00 each to your balance immediately; losing contracts expire worthless.

Because Yes and No are two sides of the same contract, their prices always sum to 100¢ — a No contract always costs 100¢ minus the Yes price.

Unfilled limit orders are cancelled at round close and the reserved funds refunded in full. Orders never roll into the next round.

Trading stays open for the full 60 seconds, including the TWAP window. When the round freezes, resting orders cancel and open positions settle against the TWAP close.

A round is voided only if the oracle cannot produce a valid print at open or close — for example, if fewer than three of the five exchange feeds are fresh (no quorum). In a voided round all trades are unwound: every participant gets back exactly what they paid, and no contracts settle. Voided rounds are expected to be extremely rare.