Notice of Designation of a Longer Period for Commission Action on Proceedings to Determine Whether to Approve or Disapprove a Proposed Rule Change, as Modified by Amendment No. 2, to Create a New, Non-Trading Limited Underwriter Membership Class and Impos

Notice of Designation of a Longer Period for Commission Action on Proceedings to Determine Whether to Approve or Disapprove a Proposed Rule Change, as Modified by Amendment No. 2, to Create a New, Non-Trading Limited Underwriter Membership Class and Impose Related Requirements for Principal Underwriting Activity