London Stock Exchange



The purpose of this announcement is to confirm the technical go-live date for London Stock Exchange MiFID II Release 9.2 and TRADEcho on Monday 20 November 2017. All times indicated in this notice are in UK Time.

Customers should provide final readiness sign-off to their Technical Account Manager prior to go-live.

London Stock Exchange MiFID II Release 9.2

Customers are required to delete all of their active orders at end of trading on Friday 17 November 2017. Any remaining active orders will be deleted by the London Stock Exchange from 16:50.

For more details on Release 9.2 changes, please see Summary of R9.2 Specification Changes and MiFID II Deployment Guide Proposal documents in the Next Functional Release – Release 9.2 – MiFID II Specifications section at the link below:



Customers are reminded that changes are not backwards compatible so they must ensure that all software and systems are updated for the go-live on Monday 20 November 2017.

Reference Data

Customers are reminded that there are mandatory file structure changes to the reference data files. Customers should ensure that all applications using reference data files can process the updated reference data files.

For details on Reference Data file changes, please see MIT 401 Guide to Reference Data Services in the Next Functional Release – Release 9.2 – MiFID II Specifications section at the link below:



Group Ticker Plant

Customers are advised that Group Ticker Plant (GTP) will be upgraded to the latest code set. Changes to the core protocol have already been made in production on 13 November 2017. From 20 November 2017, new Post Trade GTP MiFID II channels will be introduced for TRADEcho and London Stock Exchange.

For details on the Group Ticker Plant migration, please see GTP MiFID II Migration Guide in the MiFID II Migration section at the link below:



TRADEcho

TRADEcho Phase 2 will go live on Monday 20 November 2017.

1 Initial Connectivity

TRADEcho will enter the Open session from 06:15 on Monday 20 November 2017 to allow customers an extra hour to establish initial connectivity. Customers should log in using their default password and change the password on first logon. Whilst trades will also publish from 06:15 on this day, there is no requirement for a member firm to enter trade reports before 07:15 as normal.

From Tuesday 21 November 2017, the TRADEcho Open session will revert to the normal start time of 07:15.

2 Trading and Portal Configuration

All User IDs from TRADEcho Phase 1 will be copied over to the Phase 2 service to access the APA only. Passwords will be reset to the default password and should be changed on first logon. If you are currently not a user of the Phase 1 services, require SRR access or require additional Phase 2 production id’s for go-live, please contact your Technical Account Manager by midday Friday 17 November 2017.

3 Deferred Publication Trade Reports

From Wednesday 15 November 2017, the maximum scheduled delay will be reduced so that no TRADEcho Phase 1 trade will be permitted a delay later than the end of trading on Friday 17 November 2017. Consequently, any remaining deferred trades will publish at 17:15 on Friday 17 November 2017.

Customers who wish to carry forward deferred publication trade reports from Phase 1 to Phase 2 are required to cancel the relevant trade report themselves from Phase 1 prior to 17:15 on Friday 17 November 2017 and then re-enter into Phase 2 from 06:15 onwards on Monday 20 November 2017.

An interim configuration for the delay regime will be adopted for the remainder of 2017. Please see the TRADEcho MiFID II Deployment Guide for further details.

4 Market Data

Customers are reminded that the Phase 1 GTP channels 2 & 4 will be decommissioned on Monday 20 November 2017. Customers should ensure they have migrated to the new GTP MiFID II TRADEcho channels.

Please contact your Technical Account Manager or the Technical Account Management team to be enabled for Phase 2 market data channels.

5 Revision to London Stock Exchange Segment MICs

Customers are reminded that from 20 November 2017, London Stock Exchange Regulated Market and MTF business will have different MIC codes, as follows:

• XLON for Regulated Market on Exchange trading

• AIMX for AIM MTF on Exchange trading

• XLOM for Non-AIM MTF on Exchange trading.

6 Technical Documentation

Updated technical documentation, including the deployment guide, can be found on the London Stock Exchange website in the TRADEcho – Phase 2 Technical Specifications section at the link below:



Additional Information

1 Go/No-Go Confirmation

Final go/no-go confirmation will be communicated to customers by 17:00 on Saturday 18 November 2017 via the Weekend Activity Monitor at the link below:



2 Final Go-Live Signoff

Final go-live signoff should be sent to the Technical Account Management team at londontam@ confirming go-live readiness for all releases.

Relates to

Exchange(s)

— London Stock Exchange

Environment(s)

Production

Type

— Go-Live Confirmation

Product(s)

— Millennium Exchange

— TRADEcho

Additional Information

If you have any queries please contact your Technical Account Manager on +44(0)20 7797 3939 or londontam@.

An archive of previously issued service announcements is available in the technical library section of London Stock Exchange's Internet site

Customers are reminded that London Stock Exchange may broadcast test data from its Production environment at the weekends which should be discarded and not processed.

Customers are reminded that London Stock Exchange may extend or re-enter the Post Close session for instruments or segments in order to perform necessary end of day activities.

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