Stock Exchange Logo Stock Exchange Logo
  • About Us
    • Facts & Figures
    • SEM at a glance
    • SEM Stories
    • SEM Group Structure
    • Board of Directors
    • Management Team
    • Market Data Policy
    • Find a Broker
    • Find a Market Marker
    • Trading | Settlement Holidays
  • Products & Market Data
    • EQUITIES BOARD
      • Trading quotes
        Official DEM
      • Trading Data
        Official DEM
      • Market Watch
        Official DEM
      • Market Movers
        Official DEM
      • Interactive Charting
    • AFRICA BOARD
      • Trading Quotes
      • Trading Data
    • SEM X SEGMENT
      • Trading Quotes
      • Trading Data
      • SPECIALIST DEBT SECURITIES
      • DEBT SECURITIES
      • STRUCTURED PRODUCTS
      • ETFs
      • FUNDS
      • INDICES
  • Listing & Issuer Services
    • LISTING ON SEM
      • Listing Process
      • Listing Rules
        Official Market DEM
      • Admission Requirements
        Official Market DEM
      • Post Listing Requirements
        Official Market DEM
      • Listing Fees
        Official Market DEM
    • ISSUER SERVICES
      • Corporate Announcements
        Official Market DEM
      • Published Accounts
        Official Market DEM
      • Accredited Professionals
      • Reference Centre
      • Contact Listing Division
  • Education & Investor Services
    • INVESTOR EDUCATION
      • Trade on SEM in 2 Steps
      • Online Courses
      • Publications
      • SEMYIA Trading Game
      • Investor Education FAQs
      • Financial Analysis Reports
    • INVESTOR SERVICES
      • mySEM
      • mySEM Manual
      • Educational Video Gallery
      • Select Advertising on SEM
      • Investor Protection & Complaint
      • AELP
  • Regulations & Governance
    • Regulatory Framework
    • Corporate Governance
    • SEM Rules
    • Other Rules & Regulations
    • Transaction Fees
  • CDS
    • Introduction
    • Ownership, Structure & Participants
    • Corporate Governance
    • Legal & Regulatory Framework
    • Depository Services
    • Clearing & Settlement Services
    • Risk Management
    • Disaster Recovery
    • ISINs
    • Annual Reports
    • CPMI-IOSCO Principles for FMIs & AGC Questionnaire
    • Contact CDS

MENU

  • About Us
    • Facts & Figures
    • SEM at a glance
    • SEM Stories
    • SEM Group Structure
    • Board of Directors
    • Management Team
    • Market Data Policy
    • Find a Broker
    • Find a Market Marker
    • Trading | Settlement Holidays
  • Products & Market Data
    • EQUITIES BOARD
      • Trading quotes
        • Official
        • DEM
      • Trading Data
        • Official
        • DEM
      • Market Watch
        • Official
        • DEM
      • Market Movers
        • Official
        • DEM
      • Interactive Charting
    • AFRICA BOARD
      • Trading Quotes
      • Trading Data
    • SEM X SEGMENT
      • Trading Quotes
      • Trading Data
    • SPECIALIST DEBT SECURITIES
    • DEBT SECURITIES
    • STRUCTURED PRODUCTS
    • ETFs
    • FUNDS
    • INDICES
  • Listing & Issuer Services
    • LISTING ON SEM
      • Listing Process
      • Listing Rules
        • Official Market
        • DEM
      • Admission Requirements
        • Official Market
        • DEM
      • Post Listing Requirements
        • Official Market
        • DEM
      • Listing Fees
        • Official Market
        • DEM
    • ISSUER SERVICES
      • Corporate Announcements
        • Official Market
        • DEM
      • Published Accounts
        • Official Market
        • DEM
      • Accredited Professionals
      • Reference Centre
      • Contact Listing Division
  • Education & Investor Services
    • INVESTOR EDUCATION
      • Trade on SEM in 2 Steps
      • Online Courses
      • Publications
      • SEMYIA Trading Game
      • Investor Education FAQs
      • Financial Analysis Reports
    • INVESTOR SERVICES
      • mySEM
      • mySEM Manual
      • Educational Video Gallery
        • Video 6
        • Video 5
        • Video 4
        • Video 3
        • ESG Demistification
      • Select Advertising on SEM
      • Investor Protection & Complaint
      • AELP
  • Regulations & Governance
    • Regulatory Framework
    • Corporate Governance
    • SEM Rules
    • Other Rules & Regulations
    • Transaction Fees
  • CDS
    • Introduction
    • Ownership, Structure & Participants
    • Corporate Governance
    • Legal & Regulatory Framework
    • Depository Services
    • Clearing & Settlement Services
    • Risk Management
    • Disaster Recovery
    • ISINs
    • Annual Reports
    • CPMI-IOSCO Principles for FMIs & AGC Questionnaire
    • Contact CDS
  • Contact
1074

indices

    • Home
    • •
    • Products & Market Data
    • •
    • indices
    • •
    • DEMTRI
Back to Indices

DEMTRI

1. Methodology of calculation of DEMTRI

The methodology used for the calculation of the Development & Enterprise Market Total Return Index, DEMTRI, is based on the following approach.

The calculation is undertaken in two steps:

(i)The first step is to transpose the total daily announced dividend payments into index points on the ex-dividend date. This is called XD adjustment to the underlying capital index, i.e the DEMEX.

Where

gi = announced dividend per share of the ith company

wi = the number of ordinary shares issued by the ith company

d = Divisor (base market capitalisation) of the underlying capital index,

(ii) The second step of the calculation uses the figures calculated in step one (XD adjustment). These figures are included in the formula below to calculate the DEMTRI, assuming re-investment of gross dividends.



Where

DEMTRI t = Total return index value today

DEMTRI t - 1 = Total return index value yesterday

DEMEX t - 1 = underlying capital index yesterday

DEMEX t = underlying capital index today

XDt = XD adjustment to underlying capital index today

The DEMTRI will be equal to 100 at market close on August 4, based on the underlying capital index, the DEMEX.

2. Rules for the maintenance of the DEMTRI.

The maintenance of and operational adjustments to the DEMTRI in respect of corporate events, such as new listings or delistings, rights issues, bonus issues, etc will be done in accordance with the rules governing the maintenance of the underlying capital index, DEMEX.






  • Disclaimer
World Federation of Exchange
Copyright © 2025 Stock Exchange of Mauritius.