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. These indices are calculated, respectively, from the stock prices of the top 50 and 100 listed companies on SET in terms of large market capitalization, high liquidity and compliance with requirements regarding the distribution of shares to minor shareholders.

Stock Revision
The component stocks in the SET50 Index and the SET100 Index are reviewed every six months in order to adjust for any changes that have occurred in the stock market, such as new listings or public offerings. After review, stocks that meet the necessary qualifications are selected to become part of the SET50 Index or the SET100 Index and others are removed.

Disclaimer:

SET Index, SET50 Index, SET100 Index and all indices calculated by the Stock Exchange of Thailand ( “SET” ) (collectively called "SET Index Series" ) are the registered trademarks/service marks solely owned by, and proprietary to SET. Any unauthorized use of SET Index Series is strictly prohibited. All information provided is for information purposes only and no warranty is made as to its fitness for purpose, satisfactory quality or otherwise. Every effort has been made to ensure that all information given is accurate, but no responsibility or liability (including in negligence) can be accepted by SET for errors or omissions or for any losses arising from the use of this information.