SET50 Index and SET100 Index

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The SET50 and SET100 Indices are the primary stock indices of Thailand. The constituents of both lists are companies listed on the Stock Exchange of Thailand (SET) in Bangkok.


The SET50 Index and the SET100 Index were created "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 [SET]".[1] Both indices are calculated from the stock prices of companies that are included in the SET Index, but each index consists of a subset of those stocks by a ranking based on large market capitalization, high liquidity and compliance with requirements regarding the distribution of shares to minor shareholders: those stocks ranked as the top 50 such stocks are the component stocks of the SET50 Index and those ranked as the top 100 — which also includes the top 50 — are the component stocks of the SET100 Index.

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 16 August 16, 1995 (SET50 Index) and 30 April 2005 (SET100 Index), which are the respective dates that the two indices were first published and were set to a base value of 1000 points. The base market value is continually adjusted to correspond to changes in the market values of the underlying securities of each index.

Stock revision[edit]

The list of component stocks in the SET50 Index and the SET100 Index are revised every six 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 For every revision, both Index calculations will treat stocks which have been withdrawn as a delisting case and stocks which have been added as a new listing case.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.

SET50 and SET100 sortable table[edit]

Constituent companies of the SET50 and SET100 stock indices, for 1 Jan 2011 through 30 June 2011:[2][3]

Company SET Symbol SET50 Industry Group Sector
Advanced Info Service ADVANC SET50 Telecommunication
Amata Corporation AMATA
Airports of Thailand AOT SET50
Asian Property Development AP
Asia Plus Securities ASP
Banpu BANPU SET50 Resources Energy & Utilities
Bank of Ayudhya BAY SET50 Financials Banking
Bangkok Bank BBL SET50 Financials Banking
Bangchak Petroleum BCP
Bangkok Expressway BECL
Bangkok Dusit Medical Services BGH SET50
Bumrungrad International Hospital BH SET50
Bangkok Life Assurance Public Company Limited BLA
BTS Group Holdings Public Company Limited BTS SET50
Cal-Comp Electronics CCET
Central Plaza Hotel Public Company Limited CENTEL
CH Karnchang CK
Charoen Pokphand Foods CPF SET50 Agro& Food Industry Agribusiness
Central Pattana CPN SET50
Dynasty Ceramic Public Company Limited DCC SET50
Delta Electronics Thailand DELTA SET50
Total Access Communication DTAC SET50 Telecommunication
Electricity Generating EGCO SET50 Resources Energy & Utilities
Esso Thailand ESSO SET50 Resources Energy & Utilities
GFPT Public Company Limited GFPT
GJ Steel GJS
Glow Energy GLOW SET50 Resources Energy & Utilities
Hana Microelectronics HANA SET50
Hemaraj Land and Development HEMRAJ
Home Product Center HMPRO
Indorama Ventures Public Company Limited IVL SET50
IRPC IRPC SET50 Resources Energy & Utilities
Italthai Industrial Group ITD
Jasmine International JAS
Kasikorn Bank KBANK SET50 Financials Banking
Kim Eng Securities Thailand KEST
KGI Securities KGI
Bangkok Chain Hospital KH
Kiatnakin Bank KK SET50 Financials Banking
Kulthorn Kirby Public Company Limited KKC
Khon Kaen Sugar KSL SET50
Krung Thai Bank KTB SET50 Financials Banking
Kang Yong Electric Public Company Limited KYE
Lanna Resources LANNA
Land and Houses LH SET50
Loxley Public Company Limited LOXLEY Properties
LPN Development LPN
Major Cineplex Group MAJOR
Siam Makro MAKRO SET50
Minor International MINT SET50 Agro& Food Industry Agribusiness
Padaeng Industry Public Company Limited PDI
Phatra Securities PHATRA
Preuksa Real Estate PS SET50
Precious Shipping PSL
PTT Public Company Limited PTT SET50 Resources Energy & Utilities
PTT Aromatics and Refining PTTAR SET50 Resources Energy & Utilities
PTT Chemical PTTCH SET50
PTT Exporation and Production PTTEP SET50 Resources Energy & Utilities
Quality Houses QH SET50
Ratchaburi Electricity Generating RATCH SET50 Resources Energy & Utilities
Regional Container Lines RCL
Robinson Department Store ROBINS SET50
Rojana Industrial Park Public Company Limited ROJNA
Samart Corporation SAMART
Samart Telcoms Public Company Limited SAMTEL
SC Asset SC
Siam Commercial Bank SCB SET50 Financials Banking
Siam Cement SCC SET50
Siam City Cement SCCC SET50
Sansiri Public Company Limited SIRI
Siamgas And Petrochemicals Public Company Limited SGP
Supalai Public Company Limited SPALI
Stars Microelectronics (Thailand) Public Company Limited SMT
Sahaviriya Steel Industries Public Company Limited SSI
Sri Trang Agro-Industry Public Company Limited STA SET50 Agro& Food Industry Agribusiness
Sino-Thai Engineering And Construction Public Co.,Ltd. STEC
STP&I Public Company Limited STPI
SVI Public Company Limited SVI
TIPCO Asphalt Public Company Limited TASCO
Thanachart Capital TCAP SET50 Financials Banking
Thai Airways International THAI SET50
Thaicom THCOM
Ticon Industrial Connection TICON
TISCO Financial Group TISCO SET50 Financials Banking
TMB Bank TMB SET50 Financials Banking
Thai Oil TOP SET50 Resources Energy & Utilities
True Corporation TRUE SET50 Telecommunication
Tata Steel Thailand TSTH SET50
Thoresen Thai Agencies TTA SET50
Thai Tap Water Supply TTW SET50 Resources Energy & Utilities
Thai Union Frozen Products TUF SET50 Agro& Food Industry Agribusiness
Thai Vegetable Oil TVO
Thai Yuan Metal TYM
Tanayong TYONG
Vanachai Group Public Company Limited VNC

See also[edit]


  1. ^ The Stock Exchange of Thailand. "Products & Services - SET Index Series". Archived from the original on 2012-06-09. 
  2. ^ SET, SET100 Quotation
  3. ^ SET, List of Securities/Companies

External links[edit]