Will BTC be up at the end of this 4h window? Up and Down share one book; the price is the market’s implied probability that Up wins.
Quoted in Up terms, deepest levels shown. Crossing a bid with an opposite-side buy mints a fresh Up/Down pair, so two disagreeing traders can fill each other with no seller and no inventory.
| Bid size | Bid | Ask | Ask size |
|---|---|---|---|
| 200 | 0.807 | 0.832 | 200 |
| 330 | 0.798 | 0.841 | 330 |
| 4 | 0.648 | 0.850 | 460 |
| 4 | 0.641 |