Odd-lot trading orders shall be placed between 9:00 am and 1:30 pm, and between 1:40 pm and 2:30 pm after closing of the market. Such orders are valid within the above trading hours only.
Odd-lot trading orders are limited to limit orders and valid on the current day. To change a trading order, it shall be cancelled first and then a new trading order placed, except in the event of a reduction of the volume in the order.
Within the hours of odd-lot trading orders, the TWSE discloses on a real-time basis the computed execution prices and volumes, and the computed prices and volumes of the five highest unexecuted buy orders and five lowest unexecuted sell orders. In addition, the TWSE discloses, on a real-time basis during trading hours, the executed trade prices and volumes, and the prices and volumes of the five highest unexecuted buy orders and five lowest unexecuted sell orders.
Within the hours of after-market odd-lot trading orders, the TWSE discloses in real time the reported highest purchase and lowest sale price for unconfirmed transactions as shown in the calculation of the trade prices within the five-minute time slot before the end of the report time, and discloses the executed trade prices and volumes after matching.