SET News 28/2025
                                                     April 11, 2025


SET launches new additional trading supervisory measures after the end of 
temporary measures to maintain stability in Thai stock market
  
BANGKOK, April 11, 2025 - Due to the event that affects securities trading 
beginning to ease, the Stock Exchange of Thailand (SET) and Thailand Futures
Exchange PCL (TFEX) will resume the normal trading regulations, with effect from
April 16, 2025 onwards, following the end of the temporary measures, which have
been implemented from April 8 to April 11, 2025. Nonetheless, SET and TFEX, if
necessary, are ready to review and adjust trading rules as appropriate for
evolving market conditions.

Even though the temporary measures will be ended, to control price volatility 
and ensure continuous market stability, the Board of Governors (BoG) has
approved two new additional measures as follows:

1) Restricting eligible short-selling stocks to only SET100 stocks, with 
immediate effect from April 16, 2025 onwards. This measure has already passed
the process of stakeholder hearings and seeking approval of the Securities and
Exchange Commission (SEC). The uptick rule, accordingly, remains applicable to
short-selling transactions of these stocks.

2) Restricting High Frequency Trading (HFT) activities to only SET100 stocks to 
reduce volatility in small and mid-cap stocks. This measure is expected to be
implemented by this May after coordinating with relevant stakeholders to ensure
proper preparation.

The BoG has also approved maintaining the Minimum Resting Time (MRT) measure to 
prevent excessively rapid order placement and cancellation.


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