The Bangkok SET50 Index is a major stock market index which tracks the performance of all common stocks listed on the Stock Exchange of Thailand. It is a capitalization-weighted. The index has a base value of 100 as of April 30, 1975.. This page provides - Thailand Stock Market (SET) - actual values, historical data, forecast, chart, statistics, economic calendar and news. Thailand Stock Market (SET50) - actual data, historical chart and calendar of releases - was last updated on September of 2018.