Guide
What is a prediction exchange?
A prediction exchange lets you buy and sell shares in the outcome of a real event. If you are right, each share pays $1. The price you pay is the market's read on how likely that outcome is.
The short version
Pick a question with a deadline. Will Bitcoin close above $100,000 on Friday? Will the Lakers win tonight? You buy YES shares if you think it happens and NO shares if you don't. When the event resolves, the winning side is worth $1 a share and the other side is worth nothing.
Say YES trades at $0.40. You buy 100 shares for $40. If the answer turns out to be yes, you get $100 back. If it's no, you get $0. Your downside is what you paid, never more than that.
The price is a probability
A YES price of $0.62 means the market thinks there's a 62% chance the answer is yes. The two sides add up to about $1: if YES is $0.62, NO sits near $0.38.
When new information lands, the price moves. A goal goes in, a poll shifts, an earnings number prints, and the odds reprice in seconds. You can sell at the new price before the event ends, so a position is worth whatever the market will pay for it right now, not just its final $1 or $0.
Where the price comes from
This is the part that makes it an exchange. You trade against other people, not against a house that sets the odds. Every price is the point where a buyer and a seller agree. More buying pushes it up, more selling pulls it down.
A sportsbook quotes fixed odds and takes the margin built into them. An exchange matches the two sides and lets supply and demand set the number. That is why the prices track reality closely: they move the moment the crowd's opinion moves.
What an event contract is
The share you trade has a formal name: an event contract. Each contract is a claim on one outcome and settles at $1 if that outcome happens. “Event contracts trading” and “prediction market trading” describe the same thing, buying and selling those claims as the odds move.
One contract, one yes/no outcome, one settlement price. That is the whole unit.
What you can trade
Wairi runs markets across crypto, politics, sports, economics, pop culture, and science and tech. Some resolve in minutes, like a Bitcoin up-or-down round. Others run for months, like an election. The mechanic is identical every time: buy a side, watch the price, settle at $1 or $0.
See it live
Open the markets board and watch prices move, or read the full walkthrough of deposits, trading, and payouts.