Market order
Market orders are fast but expensive. Limit orders are slow but cheap.
Prediction Markets 101 editorial team Updated April 16, 2026 1 min read
Definition
A market order buys or sells at the best available price, filling immediately. Pays the spread.
Plain-English explanation
A market order crosses the spread — you buy at the ask, sell at the bid. Useful when you need to enter or exit immediately. On liquid markets with tight spreads, the cost is small. On thin markets, the cost can be 5–10%+.