Informational Circulars




Circular Number Description
Circular Number Description
IC-2017-10 Network Infrastructure Upgrades
IC-2017-09 HSVF Market Data Feed Changes – REMINDER
IC-2017-08 Primary Improvement and BVR Fee Change
IC-2017-07 DST Time Change
IC-2017-06 Postponed – Trading Floor Market Simulation
IC-2017-05 Date Change – Trading Floor Market Simulation
IC-2017-04 Trading Floor Market Simulation
IC-2017-03A  Amended_PIP COPIP Permanent
IC-2017-03 PIP/COPIP Permanent
IC-2017-02 HSVF Market Data Feed Changes
IC-2017-01 New Symbol Distribution Structure
IC-2016-33 Complex Order Solicitation Mechanism
IC-2016-32 December Fee Change
IC-2016-31 Fee Change
IC-2016-30 Liquidity Only Quotes
IC-2016-29 DST Time Change
IC-2016-28 November Fee Change
IC-2016-27 New Qualified Open Outcry Order Type – Technical Info
IC-2016-26 BVR Fee Change
IC-2016-25 Network Infrastructure Upgrade
IC-2016-24 Fee Change – Participant Fees
IC-2016-23 Quality Market Maker Allocation – Release Date and Technical Info
IC-2016-22 September Fee Change
IC-2016-21 SIFMA Industry Wide BCP Test
IC-2016-20 Wednesday SPY Expirations
IC-2016-19 Complex Order Facilitation Mechanism
IC-2016-18 August Fee Change
IC-2016-17 Quality Market Maker Allocation
IC-2016-16 Fee Change – HSVF Fee
IC-2016-15 Activity Based Protections
IC-2016-14A Amended July Fee Change
IC-2016-14 July Fee Change
IC-2016-13 Fee Change – May 2016
IC-2016-12 Enhanced Price Protection – NBO_NBB Parameter Change
IC-2016-11 BVR Fee Change
IC-2016-10 BVR Contra Order Fee
IC-2016-09 Fee Change – April 2016
IC-2016-08 Professional Order Designation – Implementation 
IC-2016-07 Enhanced Price Protection – Reactivation and NBO_NBB Parameter Change
IC-2016-06 DST Time Change 
IC-2016-05 Price Protection at the Opening Rollout
IC-2016-04 Updated – Enhanced Price Protection
IC-2016-03 Price Protection at the Opening Rollout
IC-2016-02 BOX Pre-Trade Controls
IC-2016-01 Fee Change – February 2016
IC-2015-19 Fee Change – November 2015
IC-2015-18 Facilitation Auction Surrender Quantity 
IC-2015-17 DST Time Change
IC-2015-16 Fee Change – October 2015
IC-2015-15 Affiliate Aggregate Activity
IC-2015-14 2015 SIFMA Industry Wide BCP Test
IC-2015-13 New Complex Order Line on the HSVF UDP Multicast Feed
IC-2015-12 Fee Change – August 2015
IC-2015-11 Changes to the BOX Market Maker Quoting Reports
IC-2015-10 Fee Change – July 2015
IC-2015-09 Implementation of the UDP Multicast Feed for the HSVF
IC-2015-08 Clearing Firm Access to Participant Designated Risk Settings
IC-2015-07 Fee Change – May 2015
IC-2015-06 BOX System Maintenance
IC-2015-05 New UDP HSVF Market Data Feed
IC-2015-04 DST Time Change
IC-2015-03 Preferenced Order Type Launch 
IC-2015-02 2015 Changes to Billing Invoices
IC-2015-01 Fee Change – February 2015
IC-2014-022 Options Regulatory Fee
IC-2014-021 December ADV Calculation
IC-2014-020 New Preferenced Order Type 
IC-2014-019 Fee Change – December 2014
IC-2014-018 November ADV Calculation 
IC-2014-017 DST Time Change
IC-2014-016 Fee Change – November 2014
IC-2014-015A Updated; Fee Change – October 2014
IC-2014-015 Fee Change – October 2014
IC-2014-014 2014 SIFMA Industry Wide BCP Test
IC-2014-013 Adding Counterpart Account Type to Trade Notices
IC-2014-012 New Trade Allocation Algorithms for PIP and COPIP
IC-2014-011 Change to OCC Daily Submission Deadlines Effective August 1, 2014
IC-2014-010 Jumbo SPY Trading Restrictions
IC-2014-009 HSVF Server Upgrade
IC-2014-008 July ADV Calculation
IC-2014-007 Connectivity to BOX SOLA® on Saturday, June 7
IC-2014-006 Public Customer Interest and System Time Stamp Message added to the HSVF
IC-2014-005 Market Maker Quotation Requirement Reduction
IC-2014-004 Fee Change – March 2014
IC-2014-003 Enhanced Market Protections
IC-2014-002 BOX-Top Order Decommissioning
IC-2014-001 COPIP Fees Effective January 6, 2014
IC-2013-033 Complex Order Price Improvement Launch
IC-2013-032 December ADV Calculation
IC-2013-031 November ADV Calculation
IC-2013-030 SOLA® Old Protocols Decommission – LAST REMINDER
IC-2013-029 Fee Change – November 2013
IC-2013-028 DST Time Change
IC-2013-027 Connectivity on Saturday, October 26
IC-2013-026 Market Maker Pre-Opening Spread Requirements
IC-2013-025 Market Simulation for Hardware Upgrade
IC-2013-024 Enhanced Complex Order Exposure Functionality Launch
IC-2013-023 Complex Order Exposure Functionality
IC-2013-022 2013 SIFMA Industry Wide BCP Test
IC-2013-021 Market Data Dissemination Issue
IC-2013-020 Jumbo SPY Option Fee Change
IC-2013-019 SOLA® Old Protocols Decommission – REMINDER
IC-2013-018 Complex Order Book Reminder
IC-2013-017 SOLA® Old Protocols Decommission
IC-2013-016 Complex Order Book Available on All Names
IC-2013-015A Jumbo SPY
IC-2013-015 Jumbo SPY Overview and Applicable Fees
IC-2013-014 Complex Order Book Launch – Additional Names Available
IC-2013-013 Complex Order Fees Effective May 3, 2013
IC-2013-012 Complex Order Book Launch
IC-2013-011  Complex Order Participant Market Simulation – REMINDER
IC-2013-010 Limit Up/Limit Down
IC-2013-009 Complex Order Participant Market Simulation
IC-2013-008A Mini Options
IC-2013-008 Mini Options Overview and Applicable Fees
IC-2013-007  Reduction of the Directed Order Exposure Period to One Second
IC-2013-006 DST Time Change
IC-2013-005 Unique Trade ID
IC-2013-004 March Fee Change
IC-2013-003 ORF Calculation Change
IC-2013-002 NY POP Switch Maintenance
IC-2013-001 Order Entry Price Protection
IC-2012-022 Fee Change – January 2013
IC-2012-021 Session Orders Routed Away
IC-2012-020 Elimination of Market Maker Quoting Obligations before Regular Market Hours
IC-2012-019 Billing Process Change – REVISED DATE
IC-2012-018 Change to PIP Sweep of BOX Book
IC-2012-017 Billing Process Change
IC-2012-016 BOX SOLA® System Availability
IC-2012-015 Routing Fee Change – November
IC-2012-014 2012 SIFMA Industry Wide BCP Test
IC-2012-013 Routing Fee Change – August
IC-2012-012 Complex Order Participant Testing Environment
IC-2012-011 Fee Change Effective July 1, 2012
IC-2012-010 Fee Change Effective June 1, 2012
IC-2012-009 New BOX SOLA System Restart Day
IC-2012-008a Participant Market Simulation Prior To System Upgrade – NEW DATE
IC-2012-008 Participant Market Simulation Prior To System Upgrade
IC-2012-007a EBS Code Change for New SRO – Additional Information
IC-2012-007 Electronic Blue Sheets (EBS) Code Change for New SRO
IC-2012-006 New BOX Participant Testing Environment – REMINDER
IC-2012-005 Routing Fee Change
IC-2012-004 Customer Cross Orders
IC-2012-003 Complex Order Participant Technical Implementation
IC-2012-002 Reduction in Price Improvement Period (PIP) Time to 100 Milliseconds
IC-2012-001 BOX Fee Schedule – February 1, 2012
IC-2011-013 New BOX Participant Testing Enviroment
IC-2011-012 NEW ATR Feed Supporting 4-digit Clearing Member Number
IC-2011-011 Participant Trade Prevention Feature
IC-2011-010 New Market Maker Protection Features
IC-2011-009 Delayed Implementation Date for Block Trade Auction Mechanisms
IC-2011-008 Amendments to the BOX Fee Schedule effective October 3, 2011
IC-2011-007 New Solicitation and Facilitation Auction Mechanisms for Block Trades
IC-2011-006 Amendments to the BOX Fee Schedule effective September 1, 2011
IC-2011-005 Amendments to the BOX Fee Schedule effective September 1, 2011
IC-2011-004 Revised Implementation Date for “Professional” customer account type
IC-2011-003 Amendment to BOX Trading Rules to add “Professional” Definition effective September 1, 2011
IC-2011-002 Amendments to the BOX Fee Schedule effective April 1, 2011
IC-2011-001 PIP Surrender Quantity
IC-2010-005 New Order Duration Type – Session Order
IC-2010-004 Amended BOX Fee Schedule for July 19, 2010
IC-2010-003 Operational Process and Resumption of Trading for a Trading Pause on the BOX Market
IC-2010-002 Amended BOX Fee Schedule Options Regulatory Fee
IC-2010-001 Amended BOX Fee Schedule – Transaction-Based Options Regulatory Fee
IC-2009-008 Amended BOX Fee Schedule for January 2010
IC-2009-007 Supplemental BOX ID Billing
IC-2009-006 Amended BOX Fee Schedule
IC-2009-005 Amended BOX Fee Schedule
IC-2009-004 Amended BOX Fee Schedule – IML Outbound Trades
IC-2009-003 Amended BOX Fee Schedule
IC-2009-002 Amended BOX Fee Schedule
IC-2009-001 Penny Pilot Extension