SET Index Declines amid DELTA Selloffs, Investors Focus on Cabinet Meeting

On Tuesday, Thailand’s SET Index closed the morning trading session at 1,486.99 points, showing a drop of 6.70 points or 0.45%, with a trading value of THB 45.27 billion.

Finansia Syrus Securities (FSS) stated that the Thai stock market experienced volatility during the morning session, climbing above the 1,500-point level before retreating due to profit-taking actions, as the market continues to lack new positive drivers. In addition, foreign sentiment remains weak owing to ongoing uncertainties in the Middle East.

The majority of buying activity was concentrated in energy stocks, while shares of DELTA were particularly volatile after being removed from the Cash Balance restriction. The brokerage expresses caution about DELTA trading in May 2026 as excessive movements could prompt further restrictive measures, potentially posing a risk of exclusion from the SET50 Index.

For the afternoon session, the Thai bourse is predicted to move sideways. Market participants are recommended to monitor the Cabinet meeting, as well as keep an eye on the upcoming release of U.S. non-farm payroll data later this week.

Support for the SET Index is assessed at 1,485–1,490 points, with resistance at 1,500 points.

The top five stocks by trading value for the session were as follows:

  • DELTA: trading value at THB 3.60 billion, closing at THB 312.00, down by THB 4.00 or 1.27%
  • PTT: trading value at THB 2.88 billion, closing at THB 36.00, up by THB 0.75 or 2.13%.
  • KBANK: trading value at THB 2.81 billion, closing at THB 193.00, down by THB 1.00 or 0.52%
  • KTB: trading value at THB 2.57 billion, closing at THB 32.50, down by THB 0.50 or 1.52%
  • ADVANC: trading value at THB 2.55 billion, closing at THB 339.00, down by THB 1.00 or 0.29%