Futures Trading Act Article 69
A futures commission merchant, when concurrently engaging in proprietary and brokerage businesses, shall, for each trade, distinguish in writing whether it is a proprietary or brokerage trade.
中文原文 期貨交易法第69條
期貨商兼營期貨自營及經紀業務者，應於每次買賣時，以書面文件區別其為自行買賣或受託買賣。