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Revision History

Document VersionDateDescription
2.0.005/11/17Initial draft in support of Complex orders for EDGX Options Exchange. Based on Bats Multicast PITCH 2.X.
2.0.105/15/17Removed Trading Status message.
2.0.205/18/17Various minor updates and clarification added.
2.0.307/28/17Added Multicast Ips/Ports for Certification environment.
2.0.408/08/17Added Multicast Ips/Ports for Production environment.
2.0.509/01/17Added C2 Options references.
2.0.610/17/17Cboe branding/logo changes.
2.0.710/25/17Incorrect Multicast Feed IDs were fixed in sections 1.1, 6.1.5, and 6.1.6
2.0.811/24/17
  • Auction Price is only valid for EDGX and will be set to zero for C2.
  • Added C2 Options Certification IP and Port information.
  • Added RUT, RUTW options (C2 Options Only) to distinct unit (unit 33).
2.0.902/05/18Update C2 Options IP and Port information.
2.0.1003/08/18Updated Unit Distribution ranges.
2.0.1103/23/18Unit Distribution ranges Effective Date updated to 4/14/18.
2.1.011/16/18Added support for C1 Options.
2.1.112/04/18Feature Pack 4 Updates.
2.1.202/14/19Added certification IP port and unit distribution information.
2.1.303/05/19
  • Added matching engine unit 33 information in support of XSP trading on EDGX Options effective 04/08/19.
  • Added C1 certification primary data center rendezvous point IP address and C1 Certification symbol ranges.
2.1.404/15/19
  • Added C1 production IPs and units.
  • Added DJX to C2 ME 33 in Unit/Product Distribution tables (effective 05/08/19).
2.1.505/08/19Corrected C1 Production Gig-Shaped [CAB] and [CBB] source network IP addresses.
2.1.605/14/19
  • Added Composite Market Bid Price and Composite Market Offer Price fields to the Options Auction Update message and updated associated example message.
  • Added additional proprietary products to matching unit 31 in C1.
2.1.706/12/19Corrected cert. and prod. C1 symbol range for units 9 and 20.
2.1.808/01/19
  • Added note indicating Options Auction Update message Opening Condition field value will always be zero. Updated example message.
  • Corrected Leg Count field description in Complex Instrument Definition Expanded message to indicate a total of 12 legs are allowed.
2.1.909/18/19Updated OSI Symbol example values in Symbol Mapping and Constituent Symbol Mapping message type examples.
2.1.1008/27/20
  • Corrected QQQ and UKXM symbol exclusion entries in Unit Distribution table.
  • Changed instances of Complex Instrument Definition to Complex Instrument Definition Expanded, as the former was deprecated 02/28/19.
  • Clarified description of Time message.
  • Added SPESG to C1 unit 31 Unit Distribution table (effective 9/21/20).
2.1.1110/06/20Added SPESG to the Unit Symbol Distribution table Exclusion entries for C1.
2.1.1210/20/20Removed XSP from the Unit Symbol Distribution tables on EDGX (effective 11/2/20).
2.1.1301/22/21Updated Price field description on Auction Notification message to indicate that for SPX and SPXW AIM on C1, this field will reflect the auction start price (C1 Only) (effective 02/22/21).
2.1.1402/01/21
  • Added MRUT to Unit/Symbol Distribution tables for C1 unit 31 (effective 03/01/21).
  • Added new updated Unit/Symbol Distribution tables with harmonized symbol ranges (effective 03/22/21).
2.1.1503/25/21
  • Updated the Unit Symbols Distribution Exceptions entries (effective 3/22/21).
  • Added Binary Date field type to Section 2.2 - Data Types (effective 10/10/21 TBD 09/27/21 Q3 2021).
  • Added new Time Reference message (effective 10/10/21 TBD 09/27/21 Q3 2021).
  • Added EpochTime field to Time message (effective 10/10/21 TBD 09/27/21 Q3 2021).
  • Updated description of Auction Type field on Options Auction Update and Auction Summary messages (effective TBD 09/27/21 Q3 2021).
2.1.1605/13/21Updated Curb session effective date to 02/07/22 TBD 09/27/21.
2.1.1706/08/21Noted in Complex Instrument Definition Expanded message that a total of 16 legs are allowed (effective 08/25/21 08/09/21).
2.1.1808/02/21Updated the effective date in the Complex Instrument Definition Expanded message that a total of 16 legs are allowed (effective 08/25/21).
2.1.1908/27/21Updated Curb session effective date to TBD.
2.1.2009/09/21Updated description of Auction Type field on Options Auction Update and Auction Summary messages (effective TBD).
2.1.2109/30/21
  • Updated effective date for new Time Reference message (C1 Only), EpochTime field to Time message (C1 Options Only), and Binary Date field type to Section 2.2 - Data Types to 10/10/21.
  • Added new section 1.2 - '24x5 Feed Hours and System Restart (C1 Only) (effective 10/10/21).
2.1.2211/4/21
  • Corrected example Time message values.
  • Removed note indicating Auction Type value O will be sent prior to Curb session. This value will only be sent for the RTH Opening.
2.1.2302/02/22Added NANOS to the C1 unit 32 Unit/Product Distribution tables (effective 03/14/22).
2.1.2403/01/22Removed XSP from the BZX unit 31 Unit/Product Distribution tables.
2.1.2511/07/22Moved XSP to the C1 unit 32 Unit/Production Distribution tables (effective 12/04/22).
2.1.2603/30/23Clarified RUT is on BZX and C2 Unit 31.
2.1.2701/29/24Added MXACW, MXUSA, and MXWLD to unit 31 Unit/Product Distribution tables (effective 03/18/24).
2.1.2811/22/24Added CBTX, CBTXW, MBTX, and MBTXW to unit 31 Unit/Product Distribution tables (effective 12/02/24).
2.2.2912/13/24Added new Unit/Product Distribution for Units 1-30 (effective 03/31/25).
2.2.3001/15/25

Updated with Cboe Titanium branding.

2.2.3103/25/25Added SPEQX to C1 unit 31 unit/product distribution (effective 04/14/25).
2.2.3207/08/25Added Time Offset data type. Effective 09/08/25, Time Offset fields will be populated to nanosecond precision.
2.2.3307/24/25Specification updated to indicate complex functionality is available for all Cboe Options Exchanges, with BZX Options complex functionality effective on 10/13/25.
2.2.3408/13/25Updated Secondary Datacenter IP ports in BZX Options Address/Unit Distribution.
2.2.3510/14/25Updated BZX Options Address/Unit Distribution table headers from Gig-Shaped [CAB], Gig-Shaped [CBB], and Gig-Shaped [CEB], to Gig-Shaped [OAB], Gig-Shaped [OBB], and Gig-Shaped [OEB].
2.2.3610/20/25Added MGTN and MGTNW to unit 31 in US Options Unit/Product Distribution and excluded MGTN and MGTNW from unit 14 (effective 12/08/25 TBD 11/17/25.)
2.2.3711/06/25Updated MGTN and MGTNW effective date to TBD.
2.2.3811/18/25Updated MGTN and MGTNW effective dates to 12/08/25.
2.2.3901/12/26Updated 24x5 Feed Hours and System Restart to document the new time at which persisted orders are added back into the order book (effective 02/02/26).
2.2.401/13/26Added C = SCOA to Auction Type on the Auction Notification Message (effective TBD 05/18/26 TBD).
2.2.4104/01/26
  • Removed references to MXEA, MXEF, MXACW, MXUSA, and MXWLD.
  • Updated Time description in Time and Time Reference messages.
  • Added XSPBW to C1 unit 32 Unit/Product Distribution tables (effective 06/15/26 06/01/26).
2.2.4204/06/26Updated effective date to TBD 05/18/26: Added C = SCOA to Auction Type on the Auction Notification Message.
2.2.4305/14/26
  • Updated effective date to TBD: Added C = SCOA to Auction Type on the Auction Notification Message.
  • Updated XSPBW effective date to 06/15/26.
  • Updated U.S. Options Unit/Product Distribution to include DJXW (effective 05/18/26).
2.2.4407/21/26Removed VIX and VIXW exclusion from unit 23 and added VIX and VIXW exclusion to unit 24 U.S. Options Unit/Product Distribution tables.
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Cboe Titanium U.S. Options Complex Auction Multicast PITCH Specification - Revision History | Cboe