Regulations Governing Securities Firms Accepting Orders to Trade Foreign Securities Article 18
For securities firms accepting orders to trade foreign securities, upon confirmation by the foreign securities market that the transaction has been made, the confirmed transaction date shall be the first business day after the transaction date.
中文原文 證券商受託買賣外國有價證券管理規則第18條
證券商受託買賣外國有價證券，經向外國證券市場申報成交者，以成交日後第一個營業日為確認成交日。