Market Orders
Market orders fill immediately at the best available price on Polymarket's Central Limit Order Book (CLOB).
How it works
Select your side
Choose Yes or No on any market.
Enter your amount
Type in the dollar amount you want to spend.
Confirm the trade
Review the price (shown as a probability in cents) and click Buy or Sell to execute.
The order is sent directly to Polymarket's order book and fills at the current market price. You will see your new position on your profile page right away.
If you do not have the right token for the trade, HeyAnna can handle the swap automatically using the auto-prepare option -- no manual conversion needed.
Instant execution
Market orders are the fastest way to enter or exit a position. Use them when you want to trade immediately without waiting for a specific price.