In response to heightened market turbulence triggered by the latest unrest in the Middle East, the Stock Exchange of Thailand (SET), the Market of Alternative Investment (mai) and the Thailand Futures Exchange (TFEX) have announced temporary measures to stabilize trading activities and protect investors during June 23-27, 2025.
The SET Board, in an emergency meeting held on June 22, 2025, approved a set of temporary rules aimed at reducing price swings and allowing investors more time to process information and make informed decisions. TFEX has also aligned with SET by introducing corresponding measures for the derivatives market.
Key Temporary Measures (Effective June 23-27, 2025):
Ceiling & Floor Adjustment
- The daily price movement limits (Ceiling/Floor) will be reduced by half:
- For common stocks and investment units on SET and mai: from ±30% to ±15%.
- For foreign shares: from ±60% to ±30%.
- For equity-based products on TFEX, including Index Futures, Options, Sector Futures, and Single Stock Futures: from ±30% to ±15%.
- These changes do not apply to Depositary Receipts (DR) or DRx.
| Markets | Product | Ceiling & Floor | |
| Current | New | ||
| SET, mai | Stocks/Equities | +/- 30% | +/- 15% |
| Foreign share | +/- 60% | +/- 30% | |
| TFEX | Index Futures / Options | +/- 30% | +/- 15% |
| Sector Futures | +/- 30% | +/- 15% | |
| Single Stock Futures | +/- 30% | +/- 15% | |
Dynamic Price Band Reduction
The intraday price fluctuation band for each individual security will be narrowed from ±10% to ±5%, based on the most recent trading price.
