Release Notes

Subject: UPDATE: Cboe Europe Equities: Brexit Certification (UAT) Testing - Weekly Availability Schedule

February 26, 2019 17:04:34

Dear Cboe Europe Equities Participants

Further to the previous notice regarding Certification (UAT) environment testing schedule, Cboe Europe (Cboe) will be amending the schedule for configuration of the BXE, CXE and APA Certification (UAT) environments going forward. Specifically, starting from next Monday 4th March 2019, every Monday, Wednesday, Thursday and Friday the UAT environments will be configured as separate UK and EU venues (Brexit-mode). This means that only once a week, on Tuesdays, this configuration will be reverted to a single combined venue (pre-Brexit mode).

Functionally this will result in the following behaviour (added days highlighted in yellow):

Functionality

Monday, Wednesday, Thursday & Friday
(UAT BXE, CXE and APA - Separate UK and EU venues)

Tuesday
(UAT BXE, CXE and APA - Single UK venue)

Order and ETR entry

FIX and BOE session jurisdiction will be enforced.
Orders and ETRs will be rejected if the jurisdiction of the symbol differs from that of the FIX or BOE session.

FIX and BOE session jurisdiction will not be enforced.
Orders and ETRs for either jurisdiction can be entered via a UK or EU FIX or BOE session.

UK and EU Venue MICs in LastMkt and ExecVenue fields

UK venue MICs will be supplied in the LastMkt field in Execution messages and ExecVenue field on Multicast and TCP PITCH on London and Swiss symbols, whereas EU venue MICs will be supplied for all other symbols. See Section 4 of the Guidance note for more details.

Only UK venue MICs will be supplied in the LastMkt and ExecVenue field for all symbols.

Trading Venue flagging for trade reports (APA)

The regulatory jurisdiction (UK or EU) of the bank code used for trade reporting into the Cboe APA will be used to denote whether the trade report is targeting the UK or EU APA. The resulting Cboe APA will then be reflected on market data via the Cboe Trade Flags field. See Section 5 of the Guidance Note for more details.

Regardless of the jurisdiction configuration of the bank code used for trade reporting into the Cboe APA, the Cboe Trade Flags field will contain UK values.

Trading Venue flagging for trade reports (BXE/CXE)

The value published in the Cboe Trade Flags field will be dependent on the jurisdiction of the symbol. See Section 5 of the Guidance Note for more details.

All trade reports will be published with UK values in the Cboe Trade Flags field.

ODROP session filtering

ODROP session jurisdiction will be enforced. An ODROP will receive flow only for symbols in line with its jurisdiction (UK vs EU venue).

ODROP session jurisdiction will not be enforced. Flow for either jurisdiction will be received down an ODROP.

FIXDROP session filtering

FIXDROP session jurisdiction will be enforced. A FIXDROP will receive flow only for symbols in line with its jurisdiction (UK vs EU venue).

FIXDROP session jurisdiction will not be enforced. Flow for either jurisdiction will be received down a FIXDROP.

Participants who encounter erroneous behavior or rejections at trade submission are encouraged to ensure their configuration is in line with our Brexit mode setup. For example, when submitting an order with correct symbol information as per the Reference Data files and the order is rejected with 'No symbology for Symbol' or similar, it is likely the connected session does not support the jurisdiction of the symbol. Symbols on the Cboe EU venue are not supported on Cboe UK Venue FIX, BOE, FIXDROPs and ODROPs session. The jurisdiction of a session can be identified through the Cboe Participant Portal's Logical Ports page and the jurisdiction of a symbol can be identified through the Certification Reference Data files.

Participants without EU venue FIX, BOE or drop copy sessions should urgently provide a completed Logical Port Order Form to the Trade Desk.

Please refer to the Guidance Note for specific detail on each Brexit-related change. All Participants are required to review the Guidance Note and ensure adherence to the timelines in Section 11 (page 17) for each of the upcoming mandatory changes.

In addition, Cboe's Brexit microsite resource should be checked regularly by Participants for upcoming updates regarding Brexit. All current and historical Cboe notices, including symbol universe updates, are available online.

Please contact the Trade Desk or your Account Manager if you have any questions.

Trade Desk
Cboe Europe Equities
11 Monument Street | London, EC3R 8AF
T: +44 207 012 8901
E: [email protected] | cboe.com >