Market Roundup 30 September 2026

Thailand’s SET Index closed at 1,559.01 points, decreasing by 35.29 points or 2.21%, with a trading value of THB 121 billion. The analyst stated that the Thai stock market plunged below the 1,600 threshold once again after facing pressure from big-cap selloffs, particularly from the banking and telecommunications sectors.

The analyst estimated that foreign investors have pulled back their positions—a consolidatory move after the Thai benchmark outperformed its regional peers—amid elevated bond yields and potential Federal Reserve rate hikes. Meanwhile, uncertainty around overseas situations remains the key downward catalyst.

For tomorrow, the analyst anticipates the Thai bourse to potentially rebound in the short term.

 

Thailand’s NBTC Selection Committee issued a letter instructing Professor Dr. Sarana Boonbaichaiyapruck to cease performing his duties as NBTC Chairman within seven days of receiving the order, with immediate execution required upon receipt.

The letter noted that if non-compliance or violation of the order continues, the NBTC Selection Committee may impose an enforcement fine of THB 50,000 per day for the entire duration of the violation.

 

China’s manufacturing activity returned to growth in September, with both official and private PMI surveys showing improvement as production rebounded from earlier weather disruptions and demand for artificial intelligence hardware increased. However, persistent weakness in consumer spending and property investment continues to challenge the broader recovery.

 

President Donald Trump announced that he and senior AI executives had signed a voluntary safety agreement built around company oversight and independent assessments.

Additionally, Trump also signed an executive order changing the terminology used for AI across the executive branch to “Super Intelligence.” The directive follows a similar declaration he made at the United Nations last week.