There are three types of arrows after the number of traded lots: Up (red): The transaction is completed at the posted sell order price; Down (green): The transaction is completed at the posted buy order price; To the right (white): The transaction is completed at the pending buy order price; The placed buy or sell order is executed, and the transaction price is equal to the previous transaction price. After the buy order (sell order) at a certain price is completed, there are both buy and sell orders to be placed at the same price, so the transaction is completed in the air.

Hope this helps.