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SEC Board approves amendments to SET’s regulations to strengthen overall market stability



Friday 11 April 2025 | No. 87 / 2025


Bangkok, 11 April 2025 – At the SEC Board’s meeting convened on 10 April 2025, the SEC Board passed a resolution approving amendments to the regulations of the Stock Exchange of Thailand (SET), as proposed by the SET. These amendments aim to enhance oversight of orderly securities trading by removing Non-SET100 Index securities from short selling eligibility. These SET’s regulations will take effect on 16 April 2025. Additionally, all short selling transactions must comply with the Uptick Rule, which requires short selling prices to exceed the latest trading price. This requirement will remain in place until further review.

Mrs. Pornanong Budsaratragoon, SEC Secretary-General, said: “This approval of the SET’s amended regulations will create a mechanism to mitigate price volatility for small and medium-sized securities that lack sufficient trading liquidity. These regulations will enhance market stability, benefiting the entire capital market. The SEC and the SET will collaborate to monitor the situation and evaluate the effectiveness of these implemented measures in due course.”






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Building Confidence in the Capital Market
NEWS
Securities and Exchange Commission
Corporate Communication and Investor Service Department
Tel. (66)2033-9502-5 E-mail: press@sec.or.th
No. 87 / 2025 Friday 11 April 2025
SEC Board approves amendments to SET’s regulations to strengthen overall market stability

Bangkok, 11 April 2025 – At the SEC Board’s meeting convened on 10 April 2025, the SEC Board passed a resolution approving amendments to the regulations of the Stock Exchange of Thailand (SET), as proposed by the SET. These amendments aim to enhance oversight of orderly securities trading by removing Non-SET100 Index securities from short selling eligibility. These SET’s regulations will take effect on 16 April 2025. Additionally, all short selling transactions must comply with the Uptick Rule, which requires short selling prices to exceed the latest trading price. This requirement will remain in place until further review.

Mrs. Pornanong Budsaratragoon, SEC Secretary-General, said: “This approval of the SET’s amended regulations will create a mechanism to mitigate price volatility for small and medium-sized securities that lack sufficient trading liquidity. These regulations will enhance market stability, benefiting the entire capital market. The SEC and the SET will collaborate to monitor the situation and evaluate the effectiveness of these implemented measures in due course.”