The SET Index is a Thai composite stock market index calculated by the prices of all common stocks (including unit trusts of property funds) on the main board of the Stock Exchange of Thailand (SET), except for stocks that have been suspended for more than one year. It is a market capitalization-weighted price index which compares the current market value of all listed common shares with its value on the base date of April 30, 1975, when the Index was established and set at 100 points.
The formula of calculation is as follows:
SET Index = ( Current Market Value x 100 ) / Base Market Value
The SET Index calculation is adjusted in line with modifications in the values of stocks resulting from changes in the number of stocks due to various events, e.g., public offerings, exercised warrants, or conversions of preferred to common shares, in order to eliminate all effects other than price movements from the index.
Besides the SET Index, which is calculated from the stock prices of all common stocks listed on The SET, The SET also provides other indices to investors that include the:
Market for Alternative Investment (MAI) Index
Industry Group and Sectoral Indices
SET50 Index and SET100 Index
Annual Returns
The following table shows the annual development of the SET Index since 1975.
Components
Foods
Charoen Pokphand Foods () Khon Kaen Sugar () Minor International () Thai President Foods () Thai Union ()
Automotive
Thai Rung Union Car ()
Consumer electronics
I-Mobile ()
Communications
Advanced Info Service () DTAC () Intouch Holdings () Thaicom () True Corporation ()
Construction material
Siam Cement () TPI Polene ()
Chemicals
Indorama Ventures () IRPC () PTT Global Chemical ()
Oil & gas
PTT Exploration and Production () PTT Public Company Limited () Thai Oil ()
Electric power
Glow Energy ()
Steel products
Sahaviriya Steel Industries ()
Aviation
Bangkok Airways () Nok Air () Thai AirAsia () Thai Airways ()
Construction
Christiani & Nielsen () International Engineering Public Company Limited ()
Resources
Banpu () Thai Rubber Latex Corporation () Thai Tap Water Supply ()Banking Bangkok Bank () Bank of Ayudhya () Kasikornbank () Kiatnakin Bank () Krung Thai Bank () Siam Commercial Bank () Thanachart Bank () Tisco Bank () TMB Bank ()
Insurance
Bangkok Insurance ()
Real estate
Areeya Property () Bangkok Land () Land and Houses () Pace Development () Pruksa Real Estate () Raimon Land () Sansiri ()
Retail
Central Pattana () Major Cineplex () MBK Center () Robinson Department Store () Siam Makro () The Erawan Group ()
Health care
Bangkok Dusit Medical Services () Bumrungrad International Hospital ()
Commerce
Berli Jucker () CP All ()
Media
BEC-TERO () GMM Grammy () Nation Multimedia Group () RS Public Company Limited () Workpoint Entertainment ()
Transportation
BTS Group Holdings ()
Services
AsiaSoft ()