According to Investopedia an index is an aggregate value produced by combining several stocks or other investment vehicles together and expressing their total value against a base value from a specific date. An index is a statistical measure of change in an economy or a securities market. In the case of financial markets, an index is an imaginary portfolio of securities representing a particular market or a portion of it.

Tehran Stock Exchange Dividend and Price Index(TEDPIX) has been calculated since 1998 and it has been used as a major index for Tehran Security Exchange. The portion of each industry and the number of companies of each industry is shown in the following table:

Industries No. of Companies Market Cap.(Dollar) Share of Industry
Chemical 35 26,777,165,107 24.15%
Banks 11 13,963,567,366 12.59%
Telecommunication 8 9,505,723,113 8.57%
Conglomerates 4 8,336,358,366 7.52%
Metals 25 8,105,376,234 7.31%
Oil Products 15 5,531,900,167 4.99%
Automotive 31 5,344,295,621 4.82%
Metallic Ores 12 4,539,245,551 4.09%
Pharmaceutical 29 4,032,899,562 3.64%
Transportation 6 3,541,643,806 3.19%
Technical and Engineering 2 3,027,431,013 2.73%
Electricity, Steam and Power Supply 3 2,852,051,678 2.57%
Investments 16 2,848,379,369 2.57%
IT 5 2,621,690,562 2.36%
Cement 34 2,033,934,130 1.83%
Food 27 1,370,729,319 1.24%
Electronics 10 946,459,536 0.85%
Properties 13 892,950,383 0.81%
Insurance 6 726,162,182 0.65%
Metallic Products 9 704,123,910 0.64%
Facilities and Equipment 21 557,206,070 0.50%
Rubber and Plastic 12 541,576,179 0.49%
Financial Intermediary 8 438,741,843 0.40%
Nonmetallic Mines 15 399,892,218 0.36%
Oil and Gas Extraction 1 384,160,654 0.35%
Sugar 14 291,938,520 0.26%
Tiles and Ceramic 10 179,604,446 0.16%
Medical Instruments 1 139,629,642 0.13%
Textiles 17 69,108,939 0.06%
leather Products 1 54,909,739 0.05%
Printing 2 27,554,908 0.02%
Paper Products 2 27,308,138 0.02%
Agriculture 2 26,169,874 0.02%
Other Mining 2 10,184,318 0.01%
Coal Extraction 1 9,813,827 0.01%
Wood Products 1 6,866,201 0.01%
Sum 411 110,866,752,489 100.00%

 

The Share of each industry in the TSE top 50 index has been shown in the table below:

Industry No. of Companies Market Cap.(Dollar) Share
Chemical 11 25,637,747,322 28.30%
Banks 9 13,354,396,263 14.74%
Telecommunication 2 9,385,971,360 10.36%
Conglomerates 4 8,336,358,366 9.20%
Metals 4 7,205,068,407 7.95%
Oil Products 4 4,947,572,476 5.46%
Metallic Mines 3 4,175,572,929 4.61%
Automotive 3 3,521,527,108 3.89%
Transportation 1 3,323,998,841 3.67%
Technical and Engineering 1 3,008,248,584 3.32%
Electricity, Steam and Power Supply 2 2,852,051,678 3.15%
IT 1 2,024,103,091 2.23%
Investments 2 1,002,964,852 1.11%
Pharmaceutical 1 685,251,930 0.76%
Electronics 1 607,761,619 0.67%
Food 1 514,009,819 0.57%
Sum 50 90,582,604,647 100.00%

 

The Share of each industry in the TSE top 30 index has been shown in the table below:

Industry No. of Companies Market Cap. Share
Chemical 5 21,976,019,479 28.14%
Banks 6 11,342,553,417 14.52%
Telecommunication 2 9,385,971,360 12.02%
Conglomerates 4 8,336,358,366 10.67%
Metals 2 5,705,005,466 7.30%
Oil Products 2 3,754,973,995 4.81%
Transportation 1 3,323,998,841 4.26%
Metallic Mines 2 3,314,370,424 4.24%
Automotive 2 3,083,001,584 3.95%
Technical and Engineering 1 3,008,248,584 3.85%
Electricity, Steam and Power Supply 2 2,852,051,678 3.65%
IT 1 2,024,103,091 2.59%
Sum 30 78,106,656,285 100.00%