Enhancements to
Level 1 Plus and Level 2
SERVICE & TECHNICAL GUIDANCE NOTE
January 2004
Version 1.3
1. Introduction
The London Stock Exchange is enhancing its Level 1 Plus and Level 2 data services, through the addition of 10 new messages disseminated over 2 new Broadcast Data Groups (BDGs). The new data will be available via the Exchange’s IP network Extranex and from a number of Data Vendors.
The new messages will be sent to the market via a start of day reference download and an intra day data feed. Participants will need to subscribe to the new BDGs in order to receive the new messages.
1.1 Document Scope
The purpose of this document is to define the content and structure of the
Level 1 Plus and Level 2 data enhancements and set out in detail the content of the new messages to be sent via the Exchange’s London Market Information Link (LMIL).
2. Overview of Changes
Customers who subscribe to Level 1 Plus or Level 2 will be able to access the new content through 10 new messages, delivered via 2 new BDGs. There are four broad categories of new content as follows:
1. Market Share
2. Citywire Brains Trust and Citywire Fund Insider Data
3. Security Risk and Performance Measures
4. Argus Vickers Major Shareholder Information
Following discussions with market participants including existing Member Firms and Vendors, the Exchange proposes to launch the service at the end of April 2004. Key milestones in the implementation timetable are presented below.
Consultation period / January 2004Technical documents available / February 2004
Conformance Testing available / 22nd March 2004
CDS available / 22nd March 2004
Go-live / 28th June 2004
The enhancements presented here will be achieved by leveraging existing London Stock Exchange functionality wherever possible, to ensure that technical changes for members, data and software vendors, and other third parties are minimal.
2.1 Overview of Enhancements
The new content is made up of 10 new messages divided into four broad categories:
1. Market Share
5MV – Market Share Top 5 message
2. Citywire BrainsTrust and Fund Insider Data
5MP – Citywire BrainsTrust message
5CE – Citywire Funds Insider – “Fund Manager Details” message
5CF – Citywire Funds Insider – “Fund Details” message
5FP – Citywire Funds Insider – “Fund Manager Performance” message
3. Risk and Performance Measures
5PP – Price/Earnings Ratio and Market Capitalisation message
5AB – Return Measures message
5AF – Alphas/Betas message
5AP – Average/Cumulative Volumes message
4. Argus Vickers Major Shareholder Information
5SI – Major Shareholder Information message
3 Technical Changes
This section provides details of the technical changes required to support the Level 1 Plus and Level 2 enhancements. Customer testing details are provided after this section.
3.1 London Market Information Link (LMIL) Broadcast Data
The enhanced Level 1 Plus and Level 2 LMIL data will be disseminated over two new broadcast data groups as detailed in the following table. One BDG will be included in the start of day reference data download whilst the other will be disseminated intra-day.
BDG / Description / BandwidthB90 / Level 1 Plus Reference Data * / 20K
B91 / Price/Earnings Ratio and Market Capitalisation / 7K
*Reference Data BDG
3.2 Message overview
The table below outlines the messages associated with their category and routine of dissemination.
Category / Message / Type / DisseminatedMarket Share / Market Share Top 5 / 5MV / Start of day
Citywire BrainsTrust and
Fund Insider Data / Citywire Brains Trust / 5MP / Start of day
Citywire Funds Insider “Fund Manager Details” / 5CE / Start of day
Citywire Funds Insider “Fund Details” / 5CF / Start of day
Citywire Funds Insider “Fund Manager Performance” / 5FP / Start of day
Risk and Performance measures / Price/Earnings Ratio and Market Capitalisation / 5PP / Every 15 minutes
Return Measures / 5AB / Start of day
Alphas/Betas / 5AF / Start of day
Average/Cumulative Volumes / 5AP / Start of day
Argus Vickers
Major Shareholder Information / Major Shareholder Information / 5SI / Start of day
3.3 Message Structure
The following section details the new messages to be disseminated over the Broadcast Interface as part of the Level 1 Plus and Level 2 Enhancements project.
Only the specific message body fields of each message will be detailed in this document. For information on the Broadcast header and the Broadcast Message Header please refer to the London Stock Exchange Data Formats specification TIS104 found at the below link.
http://www.londonstockexchange.com/cmsattach/1226.pdf
3.3.1 Market Share
This message will contain the identity of the top 5 member firms in each security in terms of the value of business transacted on the Exchange. The member firm's identity will be displayed using a 30 character field. The message will only contain the name of the member firm. No market share percentages or associated statistics / market share rankings will be provided. The Exchange will disseminate blank fields for those firms that qualify for inclusion within the top 5 but have chosen not to participate in the service. This information will be sorted in alphabetical order and will position firms who wish to be displayed ahead of those firms who choose to remain anonymous.
For each security we will disseminate two messages. Each message will contain up to 5 member firm identities and 2 configurable fields as follows:
· The Basis of Calculation field will be set as "T" (representing Total Business) or "C" (representing Customer Business) to identify whether the market share is based on the Total Value of business transacted or just Customer business.
· The Number of Days field will be set to represent the number of business days over which the market share has been calculated.
Details of these configurable fields will be provided nearer to the go-live date.
Market Share:
Description: This message will provide information on market share on a per security basis for the top five member firms for either customer or total business for a given number of business days.
Message Name: Market Share Top 5
Message Type: ‘5MV’
Message Version Identifier: ‘AA’
Field Name / Offset / Length / FormatMarket Segment Code / 37 / 4 / A
Market Sector Code / 41 / 4 / A
Tradable Instrument Code / 45 / 12 / A
SEDOL Code / 57 / 7 / A
Country of Register / 64 / 2 / A
Currency Code / 66 / 3 / A
Firm (1) / 69 / 30 / A
Firm (2) / 99 / 30 / A
Firm (3) / 129 / 30 / A
Firm (4) / 159 / 30 / A
Firm (5) / 189 / 30 / A
Basis of Calculation / 219 / 1 / A
Date of Preparation / 220 / 8 / N
Number of Days / 228 / 3 / N
Total Length / 231 bytes
Note – Where corrections (based on cancellations etc) are made to the Market Share data, this will be updated in the following day’s message.
3.3.2 Citywire BrainsTrust and Fund Insider Data
The Citywire BrainsTrust and Citywire Fund Insider Data will be disseminated via 4 new messages as follows:
§ Citywire BrainsTrust message
§ Citywire Funds Insider – “Fund Manager Details” message
§ Citywire Funds Insider – “Fund Details” message
§ Citywire Funds Insider – “Fund Manager Performance” message
Citywire BrainsTrust:
Description: This message is used to provide Citywire “BrainsTrust” data to the Market for FTSE 350 and FTSE Small Cap companies (excluding IT). This data is updated by Citywire on a quarterly basis.
Message Name: Citywire BrainsTrust
Message Type: '5MP'
Message Version Identifier: 'AA'
Field Name / Offset / Length / FormatMarket Segment Code / 37 / 4 / A
Market Sector Code / 41 / 4 / A
Tradable Instrument Code / 45 / 12 / A
SEDOL Code / 57 / 7 / A
Country of Register / 64 / 2 / A
Currency Code / 66 / 3 / A
BrainsTrust Code / 69 / 8 / A
BrainsTrust Security Weighting / 77 / 7 / N
FTSE Index Code / 84 / 4 / A
FTSE Industrial Sector Code / 88 / 4 / A
FTSE Security Weighting / 92 / 7 / N
Number of Managers Holding * / 99 / 6 / A
Number of Funds Holding * / 105 / 6 / A
BrainsTrust Overweight Position / 111 / 8 / S
BrainsTrust Conviction Factor / 119 / 7 / N
Generated Date / 126 / 8 / N
Total Length / 134 Bytes
* Insituations where this field is null,the message will be disseminated with spaces in this field
Citywire Funds Insider Fund Manager:
Description: This Message is used to give details on the Fund Manager’s profile, including Citywire ratings that are updated by Citywire on a monthly basis. The Citywire Fund Manager message is sent out daily per manager and covers the most recent generation period.
Message Name: Citywire Funds Insider “Fund Manager Details”
Message Type: '5CE'
Message Version Identifier: 'AA'
Field Name / Offset / Length / FormatManager Name / 37 / 50 / A
Manager ID / 87 / 8 / N
Citywire Fund Manager Rating * / 95 / 3 / A
Citywire Fund Manager Ratio * / 98 / 8 / A
Generated Date / 106 / 8 / N
Total Length / 114 Bytes
* Insituations where this field is null,the message will be disseminated with spaces in this field
Citywire Funds Insider Fund:
Description: This message is sent out for each fund held by each Manager in each of the 22 IMA Classification Classes.
Message Name: Citywire Funds Insider “Fund Details”
Message Type: '5CF'
Message Version Identifier: 'AA'
Field Name / Offset / Length / FormatClassification Scheme Code / 37 / 12 / A
Classification Class Code / 49 / 12 / A
Manager ID / 61 / 8 / N
SEDOL Code / 69 / 7 / A
Fund Name * / 76 / 50 / A
Generated Date / 126 / 8 / N
Total Length / 134 bytes
* Insituations where this field is null,the message will be disseminated with spaces in this field
Citywire Funds Insider Fund Manager Performance:
Description: This message provides details of individual fund manager performance within each of the 22 IMA classified sectors covered by Citywire Funds Insider Data. This message will be sent out for the top 15 Managers for each IMA Sector across the following time periods: 3 Month, 12, 24, 36, 48 and 60 Months.
Message Name: Citywire Funds Insider “Fund Manager Performance”
Message Type: '5FP'
Message Version Identifier: 'AA'
Field Name / Offset / Length / FormatClassification Scheme Code / 37 / 12 / A
Classification Class Code / 49 / 12 / A
Period Months / 61 / 3 / N
Period Start * / 64 / 8 / A
Period End * / 72 / 8 / A
Manager ID / 80 / 8 / N
Citywire Manager Performance * / 88 / 10 / A
Citywire Average Manager Performance * / 98 / 10 / A
Citywire Ranking * / 108 / 5 / A
Total Number of Managers * / 113 / 5 / A
Best Monthly Performance * / 118 / 10 / A
Best Monthly Performance Date * / 128 / 8 / A
Worst Monthly Performance * / 136 / 10 / A
Worst Monthly Performance Date * / 146 / 8 / A
Generated Date / 154 / 8 / N
Total Length / 162 bytes
* Insituations where this field is null,the message will be disseminated with spaces in this Field
3.3.3 Risk and Performance Measures
The following section details the Risk and Performance Measures messages.
The Risk and Performance Measures will be disseminated via the following 4 new messages:
§ Price/Earnings Ratio and Market Capitalisation
§ Return Measures
§ Alphas/Betas
§ Average/Cumulative Volumes
Price/Earnings Ratio and Market Capitalisation:
Description: This message is used to broadcast Price/Earnings Ratio and Market Capitalisation data to the Market. The message is disseminated every 15 minutes.
The message will be derived from the Mid Price for Quote based segments and trade based prices for Order Driven segments during the trading day. The Closing Price will be used for the final message/value of the day.
Message Name: Price/Earnings Ratio and Market Capitalisation
Message Type: '5PP'
Message Version Identifier: 'AA'
Field Name / Offset / Length / FormatMarket Segment Code / 37 / 4 / A
Market Sector Code / 41 / 4 / A
Tradable Instrument Code / 45 / 12 / A
SEDOL Code / 57 / 7 / A
Country of Register / 64 / 2 / A
Currency Code / 66 / 3 / A
Price / Earnings Ratio / 69 / 18 / N
Market Capitalisation / 87 / 18 / N
Date of Preparation / 105 / 8 / N
Time of Preparation / 113 / 6 / N
Total Length / 119 bytes
Return Measures:
Description: This message is broadcast to provide return measures over a range of time periods.
Message Name: Return Measures
Message Type: '5AB'
Message Version Identifier: 'AA'
Field Name / Offset / Length / FormatMarket Segment Code / 37 / 4 / A
Market Sector Code / 41 / 4 / A
Tradable Instrument Code / 45 / 12 / A
SEDOL Code / 57 / 7 / A
Country of Register / 64 / 2 / A
Currency Code / 66 / 3 / A
Three Month Return * / 69 / 18 / A
Three Month DRIP Return * / 87 / 18 / A
Six Month Return * / 105 / 18 / A
Six Month DRIP Return * / 123 / 18 / A
One Year Return * / 141 / 18 / A
One Year DRIP Return * / 159 / 18 / A
Three Year Return * / 177 / 18 / A
Three Year DRIP Return * / 195 / 18 / A
Five Year Return * / 213 / 18 / A
Five Year DRIP Return * / 231 / 18 / A
Annualised Net Yield * / 249 / 18 / A
Total Length / 267 bytes
* Insituations where this field is null,the message will be disseminated with spaces in this field