Regulations Governing Securities Firms Article 32

Unless otherwise provided by law or regulation, a securities firm engaging in proprietary trading of securities on the centralized securities exchange market shall not give a quote for the sale of securities not held by it.A securities firm concurrently operated by a financial institution that uses its own funds and trust funds in opposing proprietary trades of the same securities on the same day shall comply with the provisions of Article 108 of the Banking Act and report such transactions to the FSC for recordation.
中文原文 證券商管理規則第32條
證券商在集中交易市場自行買賣有價證券,除法令另有規定外,不得申報賣出其未持有之有價證券。
金融機構兼營之證券商,其以自有資金與信託資金在同一日內作同一有價證券之相反自行買賣者,應依銀行法第一百零八條規定辦理,並報經本會備查。

English translation for reference only; the Chinese text prevails. Not legal advice.