Slippage is the difference between the price you expected and the price you actually got, usually from moving through the order book.
Understanding slippage helps you read prices and manage risk on any prediction market platform.
Example
You expect to buy at 50¢ but a large order fills partly at 50¢ and partly at 54¢, an average of 52¢ — 2¢ of slippage.
Why it matters
Knowing how slippage works lets you compare markets and avoid costly mistakes when trading.
Practical tip
Before trading, check how slippage shows up on the specific platform you use, since interfaces and terminology can vary slightly between exchanges. Reviewing a few live markets is a quick way to see slippage in action before risking real funds.