On September 13, the Financial Industry Regulatory Authority announced that it has censured and fined Trillium Brokerage Services, LLC, a New York-based proprietary trading firm, $1 million for using an illicit high-frequency trading strategy and related supervisory failures. Nine traders at Trillium entered numerous layered orders on the NASDAQ Stock Market and NYSE Arca designed to create the false appearance of buying or selling in an attempt to obtain better prices than they would have otherwise, FINRA said in a news release.