The Stock Exchange of Thailand (SET) is preparing to rebalance stock market trading by accelerating the expansion of the retail investor base and disclosing more short-selling transaction information to restore investor confidence. As a result, the proportion of foreign investor trading in the market has increased, while trading among other investor groups decreased, he told a media briefing. Five years ago, foreign investors accounted for 42% of trading, and institutions and brokers accounted for more than 10% of trading. Mr Pakorn said the SET and the Securities and Exchange Commission have not noticed any unusual short-selling trading volume. "Short-selling transactions on the Thai stock market were still normal and such figures can be checked everyday," he said.