On November 15, the Securities and Exchange Commission approved the consolidated audit trail (CAT) plan proposed by the self-regulatory organizations (SROs).  As specified by the CAT plan, the CAT will be designed to create a central repository to track all trading activity in national market system (NMS) securities, including options and equity securities.
Continue Reading SEC Approves Plan To Create Consolidated Audit Trail

On October 3, the Financial Industry Regulatory Authority began publishing monthly data on block-size trades occurring on alternative trading systems (ATSs). Statistics for ATS block-size trades are being aggregated across all National Market System (NMS) stocks for a one-month trading period and will be published no earlier than one month following the end of the month for which such trading was aggregated. The initial report covers August ATS trades.
Continue Reading FINRA To Publish Block-Size Trade Data for ATS Trades

The Financial Industry Regulatory Authority has adopted amendments to clarify the operation of the Regulation NMS Plan to Address Extraordinary Volatility following a trading pause or regulatory halt. FINRA rules prohibit the execution of transactions in national market system (NMS) securities during a trading pause.
Continue Reading FINRA Adopts Amendments on Resumption of Trading