The firm used a proprietary day-trading system.

那家公司使用一套专用的日内交易系统。

youdao

Chi-X Global, a subsidiary of Instinet, recently received a proprietary trading system license from the Japan Financial Services Agency.

FORBES: More Ways To Trade In The East

My guess is that fiduciary standard, a critical measure for the little guy, will be overshadowed by things like system-wide risk, proprietary trading, derivatives and the creation of a consumer protection agency.

FORBES: Little Guy Still Ripe For Broker Abuse