The Market Index is a single descriptive statistic designed as a performance benchmark expressed by the movements of underlying group of stock prices in the market. The goal of an index in any stock market is portraying the aggregate price changes of stocks which make up the index and, as a result, measures the volatility of the market as well as the price direction whether these directions are up, down or constant.

The Market Index of the Doha Securities Market (DSM) is identified as the “DSM 20 Index” and represents 20 listed companies.

When selecting a sample index of share prices in any stock market, certain well defined and specified standards must be applied to include/exclude companies in the sample index. The criteria for selecting the DSM 20 index sample are outlined below:

1. Company Capitalization entered into the index.

2. Number of Traded Shares for a company during one year.

3. Value of Traded Shares for a company during one year.

4. Share Turnover Ratio for a company during one year.

5. Number of Traded Days for a company during one year.

6. Number of Executed Transactions for a company during one year.

The DSM 20 Index sample is not fixed. It is, rather, reviewed and adjusted periodically and from time to time in order to maintain continuity, safeguard and mirror image of market trends. The review and adjustment takes place when there are new developments and changes evolves on the business activities of the listed companies.

The table below illustrates the companies included in the DSM 20 Index

Companies included in the DSM 20 Index (January 1, 2009)

^10TH Adjustment: The number of free float shares for Qatar International Islamic Bank were adjusted on April 03,2008.

^12TH Adjustment: The number of free float shares for Qatar Islamic Bank were adjusted on April 16,2008.

^13TH Adjustment: The number of free float shares for Qatar National Bank were adjusted on April 23,2008.

^14TH Adjustment: The number of free float shares for Doha Bank were adjusted on May 26,2008.

^16TH Adjustment: The number of free float shares for Commercial Bank & Qtel were adjusted on July 02,2008.

^{ADJUSTMENTS DURING 2009:}

1st Adjustment: The sample of DSM 20 Index has been changed through excluding four companies and including four companies effective January 4, 2009 as shown in the table below:

4^TH Adjustment: The number of free float shares for Commercial Bank was adjusted on Feb 17, 2009.

5^TH Adjustment: The number of free float shares for Doha Bank was adjusted on Mar 02, 2009.

6^TH Adjustment: The number of free float shares for Salam International was adjusted on Mar 04, 2009.

7^TH Adjustment: The number of free float shares for National Leasing was adjusted on Mar 05, 2009.

8^TH Adjustment: The number of free float shares for Qatar International Islamic Bank was adjusted on Mar 12, 2009.

9^TH Adjustment: The number of free float shares for Qatar Meat & Livestock (Mawashee) was adjusted on April 22, 2009.

10^TH Adjustment: The number of free float shares for Qatar Fuel  was adjusted on June 02, 2009.