Introduction of New Segments and Sectors for Fixed Income Securities

Introduction of New Segments and Sectors for Fixed Income Securities

Service Announcement
001/19042017 /
Fixed Income – Upcoming Market Structure Changes

The purpose of this Service Announcement is to notify customers that there will be changes to the current market structure for Fixed Income securities.

These changes are in relation to London Stock Exchange’s announcement on 9 March 2017 outlining its intention to launch the International Securities Market (ISM), an additional market for the issuance of primary debt targeted at institutional and professional investors. The ISM is an exchange-regulated market, a multilateral trading facility (MTF), which will operate alongside London Stock Exchange plc’s other markets. For additional information please see the dedicated ISM webpage at

The new sectors for Fixed Income securities set out below will be going live in CDS, from Thursday 20 April 2017. We will update the market when these sectors are expected to be available in production in due course. No instruments will be moved to the new sectors in production until this time.

Full details of the new sectors are available in the Millennium Exchange Business Parameters document, which is the 2nd download at the bottom of:

Introduction of new segments and sectors for Fixed Income securities

Segment Code / Segment Description / Sector Code / Sector Name / Market
MWNU / CORP. WSALE.DEBT EXCH. REG. (ISM) / EICM / EU ISSUERS CNVE. (EXCH REG) (ISM) / ISM
MWNU / CORP. WSALE.DEBT EXCH. REG. (ISM) / EIDM / EU ISSUERS DIPS (EXCH REG) (ISM) / ISM
MWNU / CORP. WSALE.DEBT EXCH. REG. (ISM) / EIOM / EU ISSURS.OTHR.CTGS. (EXCH REG) (ISM) / ISM
MWNU / CORP. WSALE.DEBT EXCH. REG. (ISM) / NIOM / NON EU ISS.OTHR.CTG. (EXCH REG) (ISM) / ISM
MWNU / CORP. WSALE.DEBT EXCH. REG. (ISM) / NICM / NON EU ISSUERS CNVE (EXCH REG) (ISM) / ISM
MWNU / CORP. WSALE.DEBT EXCH. REG. (ISM) / NIDM / NON EU ISSUERS DIPS (EXCH REG) (ISM) / ISM
MWTU / CORP. WSALE.DEBT EXCH. REG.T/R (ISM) / UICM / UK ISSUERS CNVE. (EXCH REG) T/R (ISM) / ISM
MWTU / CORP. WSALE.DEBT EXCH. REG.T/R (ISM) / UIDM / UK ISSUERS DIPS (EXCH REG) T/R (ISM) / ISM
MWTU / CORP. WSALE.DEBT EXCH. REG.T/R (ISM) / UIOM / UK ISSURS.OTHR.CTGS. (EXCH REG) T/R (ISM) / ISM
SUNM / SUKUK EXCH.REG (ISM) / SKPM / SUKUK (ISM) / ISM
MWNM / MISCELLANEOUS MTF TR (ISM) / EICT / MISCELLANEOUS MTF TR (ISM) / ISM
MXPQ / PROF MKT CONT EXCH REG (ISM) / PDCM / PROFESSIONAL DEBT CONT. QUO EXCH REG (ISM) / ISM
MXPE / PROF MKT EOD EXCH REG (ISM) / PDCF / PROFESSIONAL DEBT EOD EXCH REG (ISM) / ISM
GRMQ / PROF MKT GREEN CONT EXCH REG (ISM) / PGRM / PROFESSIONAL DEBT GREEN CONT. QUO EXCH REG (ISM) / ISM
GRME / PROF MKT GREEN EOD EXCH REG (ISM) / PGRN / PROFESSIONAL DEBT GREEN EOD EXCH REG (ISM) / ISM
MXPM / OFIS MTF MISCELLANEOUS (CONT) (ISM) / PDCT / OFIS MISCELLANEOUS MTF (CONT) / ISM
CWNM / MISCELLANEOUS MM TR / EICF / MISCELLANEOUS MM TR / Main
RCNM / OFIS MM MISCELLANEOUS (CONT) / CWDM / OFIS MISCELLANEOUS MM (CONT) / Main
CWAT / CORP. WSALE.DEBT ATT ONLY / IWAO / INTERNATIONAL WHOLESALE DEBT ATT ONLY / ATT Only

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Service Announcement
001/19042017 /
Fixed Income – Upcoming Market Structure Changes

Relates to

Exchange(s)

— London Stock Exchange

Environment(s)

— Customer Development Service

— Production

Type

— Market Structure Update

Product(s)

— Millennium Exchange

— Fixed Income

Additional Information

If you have any queries about this announcement please e-mail:
If you have any technical queries please contact your Technical Account Manager on 020 7797 3939 or .

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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