What Are Prediction Markets? A Beginner’s Guide
5 min read
The one-sentence version
A prediction market lets you buy a position on the outcome of a real-world event — an election, a match, a price level — and pays out if you’re right.
Every outcome trades at a price between 1¢ and 99¢. That price IS the market’s probability: a Yes trading at 30¢ means the market collectively thinks there’s about a 30% chance it happens.
Why the prices are usually sharp
Prices move because people put money behind their opinions. When news breaks, traders who react first profit from anyone slow to update — which drags the price to the new consensus within minutes. That’s why prediction market odds routinely beat pundits and polls.
How a trade works
Pick an event, pick a side (Yes or No), and choose your stake. Your potential payout is locked at the moment you trade: buy Yes at 30¢ and a $30 position returns $100 if the event happens.
On Rolluck you can also sell a position back at the current price before the event resolves — locking in profit early or cutting a loss.
Start small
The best way to learn is a $5 position on an event you already follow. You’ll immediately understand why the price moves when the news does.