Proposed Rule Change to Provide a Process for an Expedited Proceeding and Adopt a Rule to Prohibit Disruptive Quoting and Trading Activity

Financial Industry Regulatory Authority, Inc. (“FINRA”) is filing with the Securities and Exchange Commission (“SEC” or “Commission”) a proposed rule change to (i) adopt new Supplementary Material to Rule 5210 to address two specific types of disruptive quoting and trading activity, as further described below and (ii) amend the FINRA Rule 9800 Series to permit FINRA to initiate an expedited proceeding to take prompt action for violations of the new Supplementary Material.