Release Notes

Cboe Europe Equities: Changes to Symbol Reference File, effective Friday 28th September 2018

August 20, 2018 16:00:58

Dear Cboe Europe Equities Participants

Cboe Europe Equities (Cboe) will be introducing some changes to the Symbol Reference Data CSV file as outlined below, effective Friday 28th September 2018:

Symbol Reference Data CSV
In summary, the following changes will be made to the file:

* capped column - A value of 1 will indicate "Capped voluntarily by Cboe for Dark Book trading only (Negotiated Trades are still accepted)". The value of 3 will be removed as it is no longer required.

* venue_cap_percentage column - All values in this column will be removed (blank).

* regulated_entity column - Addition of new column to denote the Cboe regulated entity (UK or EU) upon which the instrument is traded.

The changes above will be effective for the BXE, CXE, TRF, LIS and SIS symbol reference data files, upon the PRODUCTION effective date indicated above.

These changes, including detailed descriptions of each column have been reflected in the updated Reference Data Specification, and will be made available in the CERTIFICATION (UAT) environments for testing from Monday 27th August 2018. The same changes will take effect in the PRODUCTION environments at the start of day on Friday 28th September 2018.

All current and historical Cboe notices, including symbol universe updates, are available online at
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