Spot trading supports the following 2 order types currently: limit order and market order.
Limit order means that the user sets the order size and the acceptable highest bid price or lowest ask price. Only when the market price falls within the limit order price range will the order be filled.
Bid price for limit order cannot be set 110% higher than the latest price;
Ask price for limit order cannot be set 90% lower than the latest price.
Market order means that the user forthwith executes buy or sell at the optimal price in the current market for fastest order-filling. Market orders will not be filled at prices 10% higher or lower than the latest market price, beyond which range market orders will be cancelled automatically.