The Taiwan Monthly

Others

Transparency enhanced for disposition securities and securities listed under the altered-trading-method category

In order to augment the transparency of the transaction information of disposition securities and securities listed under the altered-trading-method category where periodic call auction was adopted, the relevant regulations were revised and implemented on September 26, 2022. The contents are explained as follows:

1. Disclosure of Trading Information:
   The TWSE discloses simulated transaction prices, simulated trading volumes, simulated best five bid/ask prices and volumes approximately every five seconds during the  regular trading session, and approximately every 10 seconds during the intraday odd lot trading session.
2. Volatility Interruption:
   If the potential execution price of a specific stock fluctuates sharply, the TWSE will implement the volatility interruption measure to delay the current matching by two minutes during the opening and closing session, the same as the intra-day trading session.

For further information, please contact Ms. Lee at 1089@twse.com.tw.