After selecting your contract, the Order Form widget will appear in the Trade page. Here's how to fill it out:
Choose a direction: Click Buy (long) or Sell (short).
Choose an order type: Use the dropdown in the top-right (above the isolate toggle) to select your order type. (See Derivatives order types)
A Market order executes immediately at the best available price. You only need to enter a quantity, no price input is needed. Market orders always incur the taker fee.
A Limit order lets you set your price. The order will execute when the market reaches that price (or better). If the order sits on the book and is filled later, you pay the maker fee. If it matches immediately, you pay the taker fee.
Enter your quantity or total: Input the amount in the base asset (ex. BTC) in the quantity box. The estimated USD total will update automatically. Alternatively, you can enter the total of the quote asset (ex. USD) in the total box. The quantity (base asset) will update automatically.
Optional: Set a Take Profit or Stop Loss: Use the TP/SL dropdown to attach conditional exit orders when opening your position.
Submit: Click the green Buy or red Sell button to submit your order. A notification in the bottom-right confirms whether the order was placed successfully.