For limit orders and stop limit orders, the Post-Only option is available.
Post-Only orders are used to ensure that limit orders are not matched immediately with existing orders in the book.
Tick the box next to Post-Only in the order panel to ensure that you receive a market rebate (highlighted above).
If the Post-Only option is used and the limit order can be matched with existing orders in the book, your order will be cancelled.
For example, if the best ask in the order book is $9,350 and you submit a Post-Only limit order to buy at $9,355, the order will be cancelled. However, if you place a Post-Only limit order to buy at $9,340 and the best ask is at $9,350, your order is placed onto the book like a standard limit order.