SET50 Index & SET100 Index

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To accommodate the issuing of index futures and options in the future, and to provide a benchmark of investment in The Stock Exchange of Thailand, the SET50 Index and the SET100 Index were launched. Both indices are calculated from the stock prices of the top 50 and 100 listed companies in the SET Index in terms of large market capitalization, high liquidity and comply with the requirement regarding the distribution of shares to minor shareholders, and etc. The calculation method, used for these two indices, is the same as that used for the SET Index which is a market capitalization weighted index. The base dates used are August 16, 1995 (SET50 Index) and April 30, 2005 (SET100 Index), which are the respective dates when the two indices were established and set at 1000 points. The base market value is continually adjusted to correspond to changes in the values of securities resulting from changes in the number of stocks due to various events; such as public offerings, exercised warrants, conversions of preferred to common shares, and etc.


[edit] Stock Revision

The list of component stocks in the SET50 Index and the SET100 Index are revised every 6 months in order to adjust for any unexpected changes that have occurred in the stock market such as new listings or public offerings. After these adjustments are made, stocks that meet the necessary qualifications are then selected to become part of the SET50 Index or the SET100 Index. Stock selection is conducted semi-annually between December 1 - 31 and June 1 - 30. During these two periods, The Stock Exchange of Thailand will select stocks based on its pre-stipulated criteria. The revised stock lists for both the SET50 and the SET100 will be announced to the general public as soon as the lists become available. New SET100 and SET50 Indices will take effect on the first trading day in January and July of each year. For every revision, both Index calculations will treat stocks which have been withdrawn as a delisting case and stocks which have been added as a new listing case. Whenever a stock is removed from either or both of the indices, a new stock will be added to replace it and to ensure the uninterruption of the indices. Also, adjustments will be made whenever the market value of a component stock changes due to the conversion of convertible bonds, the exercising of warrants, or new shares are issued for capital increase of the component stock, etc.

[edit] SET 50 component

(as of January 2007, listed in alphabetical order)

  1. ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED
  2. AIRPORTS OF THAILAND PUBLIC COMPANY LIMITED
  3. AMATA CORPORATION PUBLIC COMPANY LIMITED
  4. BANGKOK BANK PUBLIC COMPANY LIMITED
  5. BANGKOK DUSIT MEDICAL SERVICES PUBLIC COMPANY LIMITED
  6. BANGKOK EXPRESSWAY PUBLIC COMPANY LIMITED
  7. BANK OF AYUDHYA PUBLIC COMPANY LIMITED
  8. BANPU PUBLIC COMPANY LIMITED
  9. BEC WORLD PUBLIC COMPANY LIMITED
  10. BUMRUNGRAD HOSPITAL PUBLIC COMPANY LIMITED
  11. C.P. SEVEN ELEVEN PUBLIC COMPANY LIMITED
  12. CAL-COMP ELECTRONICS (THAILAND) PUBLIC CO., LTD.
  13. CENTRAL PATTANA PUBLIC COMPANY LIMITED
  14. CHAROEN POKPHAND FOODS PUBLIC COMPANY LIMITED
  15. DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
  16. ELECTRICITY GENERATING PUBLIC COMPANY LIMITED
  17. GLOW ENERGY PUBLIC COMPANY LIMITED
  18. HANA MICROELECTRONICS PUBLIC COMPANY LIMITED
  19. IRPC PUBLIC COMPANY LIMITED
  20. ITALIAN-THAI DEVELOPMENT PUBLIC COMPANY LIMITED
  21. KASIKORNBANK PUBLIC COMPANY LIMITED
  22. KHON KAEN SUGAR INDUSTRY PUBLIC COMPANY LIMITED
  23. KIATNAKIN BANK PUBLIC COMPANY LIMITED
  24. KRUNG THAI BANK PUBLIC COMPANY LIMITED
  25. LAND AND HOUSES PUBLIC COMPANY LIMITED
  26. MCOT PUBLIC COMPANY LIMITED
  27. MINOR INTERNATIONAL PUBLIC COMPANY LIMITED
  28. PRECIOUS SHIPPING PUBLIC COMPANY LIMITED
  29. PTT CHEMICAL PUBLIC COMPANY LIMITED
  30. PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY
  31. PTT PUBLIC COMPANY LIMITED
  32. RATCHABURI ELECTRICITY GENERATING HOLDING PUBLIC CO.,LTD.
  33. REGIONAL CONTAINER LINES PUBLIC COMPANY LIMITED
  34. SAHAVIRIYA STEEL INDUSTRIES PUBLIC COMPANY LIMITED
  35. SIAM CITY BANK PUBLIC COMPANY LIMITED
  36. SIAM CITY CEMENT PUBLIC COMPANY LIMITED
  37. SIAM MAKRO PUBLIC COMPANY LIMITED
  38. THAI AIRWAYS INTERNATIONAL PUBLIC COMPANY LIMITED
  39. THAI OIL PUBLIC COMPANY LIMITED
  40. THAI PLASTIC AND CHEMICALS PUBLIC COMPANY LIMITED
  41. THAI UNION FROZEN PRODUCTS PUBLIC COMPANY LIMITED
  42. THANACHART CAPITAL PUBLIC COMPANY LIMITED
  43. THE AROMATICS (THAILAND) PUBLIC COMPANY LIMITED
  44. THE SIAM CEMENT PUBLIC COMPANY LIMITED
  45. THE SIAM COMMERCIAL BANK PUBLIC COMPANY LIMITED
  46. THORESEN THAI AGENCIES PUBLIC COMPANY LIMITED
  47. TISCO BANK PUBLIC COMPANY LIMITED
  48. TMB BANK PUBLIC COMPANY LIMITED
  49. TPI POLENE PUBLIC COMPANY LIMITED
  50. TRUE CORPORATION PUBLIC COMPANY LIMITED

[edit] SET 100 component

(as of January 2007, listed in alphabetical order)

  1. AAPICO HITECH PUBLIC COMPANY LIMITED
  2. ACL BANK PUBLIC COMPANY LIMITED
  3. ADKINSON SECURITIES PUBLIC COMPANY LIMITED
  4. ADVANCED INFO SERVICE PUBLIC COMPANY LIMITED
  5. AIRPORTS OF THAILAND PUBLIC COMPANY LIMITED
  6. AMATA CORPORATION PUBLIC COMPANY LIMITED
  7. ASIA PLUS SECURITIES PUBLIC COMPANY LIMITED
  8. ASIAN INSULATORS PUBLIC COMPANY LIMITED
  9. ASIAN PROPERTY DEVELOPMENT PUBLIC COMPANY LIMITED
  10. BANGKOK AVIATION FUEL SERVICES PCL.
  11. BANGKOK BANK PUBLIC COMPANY LIMITED
  12. BANGKOK CHAIN HOSPITAL PUBLIC COMPANY LIMITED
  13. BANGKOK DUSIT MEDICAL SERVICES PUBLIC COMPANY LIMITED
  14. BANGKOK EXPRESSWAY PUBLIC COMPANY LIMITED
  15. BANGKOK LAND PUBLIC COMPANY LIMITED
  16. BANK OF AYUDHYA PUBLIC COMPANY LIMITED
  17. BANKTHAI PUBLIC COMPANY LIMITED
  18. BANPU PUBLIC COMPANY LIMITED
  19. BEC WORLD PUBLIC COMPANY LIMITED
  20. BUMRUNGRAD HOSPITAL PUBLIC COMPANY LIMITED
  21. C.P. SEVEN ELEVEN PUBLIC COMPANY LIMITED
  22. CAL-COMP ELECTRONICS (THAILAND) PUBLIC CO., LTD.
  23. CENTRAL PATTANA PUBLIC COMPANY LIMITED
  24. CH. KARNCHANG PUBLIC COMPANY LIMITED
  25. CHAROEN POKPHAND FOODS PUBLIC COMPANY LIMITED
  26. DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
  27. DYNASTY CERAMIC PUBLIC COMPANY LIMITED
  28. ELECTRICITY GENERATING PUBLIC COMPANY LIMITED
  29. G STEEL PUBLIC COMPANY LIMITED
  30. GLOW ENERGY PUBLIC COMPANY LIMITED
  31. GOLDEN LAND PROPERTY DEVELOPMENT PUBLIC COMPANY LIMITED
  32. HANA MICROELECTRONICS PUBLIC COMPANY LIMITED
  33. HEMARAJ LAND AND DEVELOPMENT PUBLIC COMPANY LIMITED
  34. HOME PRODUCT CENTER PUBLIC COMPANY LIMITED
  35. INDORAMA POLYMERS PUBLIC COMPANY LIMITED
  36. IRPC PUBLIC COMPANY LIMITED
  37. ITALIAN-THAI DEVELOPMENT PUBLIC COMPANY LIMITED
  38. ITV PUBLIC COMPANY LIMITED
  39. JASMINE INTERNATIONAL PUBLIC COMPANY LIMITED
  40. KASIKORNBANK PUBLIC COMPANY LIMITED
  41. KGI SECURITIES (THAILAND) PUBLIC COMPANY LIMITED
  42. KHON KAEN SUGAR INDUSTRY PUBLIC COMPANY LIMITED
  43. KIATNAKIN BANK PUBLIC COMPANY LIMITED
  44. KIM ENG SECURITIES (THAILAND) PUBLIC COMPANY LIMITED
  45. KRUNG THAI BANK PUBLIC COMPANY LIMITED
  46. KRUNGTHAI CARD PUBLIC COMPANY LIMITED
  47. L.P.N. DEVELOPMENT PUBLIC COMPANY LIMITED
  48. LAND AND HOUSES PUBLIC COMPANY LIMITED
  49. LOXLEY PUBLIC COMPANY LIMITED
  50. MAJOR CINEPLEX GROUP PUBLIC COMPANY LIMITED
  51. MCOT PUBLIC COMPANY LIMITED
  52. METROSTAR PROPERTY PUBLIC COMPANY LIMITED
  53. MINOR INTERNATIONAL PUBLIC COMPANY LIMITED
  54. NAKORNTHAI STRIP MILL PUBLIC COMPANY LIMITED
  55. NATURAL PARK PUBLIC COMPANY LIMITED
  56. PADAENG INDUSTRY PUBLIC COMPANY LIMITED
  57. PHATRA SECURITIES PUBLIC COMPANY LIMITED
  58. POWER LINE ENGINEERING PUBLIC COMPANY LIMITED
  59. PRECIOUS SHIPPING PUBLIC COMPANY LIMITED
  60. PREUKSA REAL ESTATE PUBLIC COMPANY LIMITED
  61. PTT CHEMICAL PUBLIC COMPANY LIMITED
  62. PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY
  63. PTT PUBLIC COMPANY LIMITED
  64. QUALITY HOUSES PUBLIC COMPANY LIMITED
  65. RATCHABURI ELECTRICITY GENERATING HOLDING PUBLIC CO.,LTD.
  66. REGIONAL CONTAINER LINES PUBLIC COMPANY LIMITED
  67. ROBINSON DEPARTMENT STORE PUBLIC COMPANY LIMITED
  68. ROJANA INDUSTRIAL PARK PUBLIC COMPANY LIMITED
  69. SAHAVIRIYA STEEL INDUSTRIES PUBLIC COMPANY LIMITED
  70. SAMART CORPORATION PUBLIC COMPANY LIMITED
  71. SAMART I-MOBILE PUBLIC COMPANY LIMITED
  72. SAMART TELCOMS PUBLIC COMPANY LIMITED
  73. SANSIRI PUBLIC COMPANY LIMITED
  74. SC ASSET CORPORATION PUBLIC COMPANY LIMITED
  75. SHIN SATELLITE PUBLIC COMPANY LIMITED
  76. SIAM CITY BANK PUBLIC COMPANY LIMITED
  77. SIAM CITY CEMENT PUBLIC COMPANY LIMITED
  78. SIAM MAKRO PUBLIC COMPANY LIMITED
  79. SINO-THAI ENGINEERING AND CONSTRUCTION PUBLIC CO.,LTD.
  80. SUPALAI PUBLIC COMPANY LIMITED
  81. THAI AIRWAYS INTERNATIONAL PUBLIC COMPANY LIMITED
  82. THAI OIL PUBLIC COMPANY LIMITED
  83. THAI PLASTIC AND CHEMICALS PUBLIC COMPANY LIMITED
  84. THAI STANLEY ELECTRIC PUBLIC COMPANY LIMITED
  85. THAI UNION FROZEN PRODUCTS PUBLIC COMPANY LIMITED
  86. THANACHART CAPITAL PUBLIC COMPANY LIMITED
  87. THE AROMATICS (THAILAND) PUBLIC COMPANY LIMITED
  88. THE BANGCHAK PETROLEUM PUBLIC COMPANY LIMITED
  89. THE ERAWAN GROUP PUBLIC COMPANY LIMITED
  90. THE LANNA RESOURCES PUBLIC COMPANY LIMITED
  91. THE SIAM CEMENT PUBLIC COMPANY LIMITED
  92. THE SIAM COMMERCIAL BANK PUBLIC COMPANY LIMITED
  93. THORESEN THAI AGENCIES PUBLIC COMPANY LIMITED
  94. TICON INDUSTRIAL CONNECTION PUBLIC COMPANY LIMITED
  95. TISCO BANK PUBLIC COMPANY LIMITED
  96. TMB BANK PUBLIC COMPANY LIMITED
  97. TPI POLENE PUBLIC COMPANY LIMITED
  98. TRUE CORPORATION PUBLIC COMPANY LIMITED
  99. TT&T PUBLIC COMPANY LIMITED
  100. VANACHAI GROUP PUBLIC COMPANY LIMITED