The SET closed at 1,598.11 points, down 26.36 points (-1.62%), with total turnover of 112,047.42 million baht. Analysts said the Thai stock market pulled back on heavy selling in DELTA, which dragged down the electronics and banking sectors, while rising bond yields — particularly on the 30-year tenor — weighed on risk assets after the Fed Chair sent an ambiguous signal on interest rate direction, though the market is pricing in at least one rate hike. Meanwhile, a broadening of the war added to cost pressures. Key support is seen at 1,580 points; resistance at 1,600–1,610 points.
Today's session opened lower and remained in decline throughout the day, hitting an intraday low of 1,587.29 points and an intraday high of 1,616.06 points.
In terms of individual securities, 152 stocks advanced, 307 declined, and 193 were unchanged.
The breakdown of investor activity was as follows:
Institutional investors: net sellers of 10,285.02 million baht. Brokerage accounts: net sellers of 3,424.73 million baht. Foreign investors: net sellers of 1,664.67 million baht. Local investors: net buyers of 6,355.57 million baht.
The top five stocks by trading value were:
DELTA closed at 264.00 baht, down 21.00 baht or 7.37%, with a trading value of 11,119.73 million baht.
TRUE closed at 14.60 baht, up 0.70 baht or 5.04%, with a trading value of 8,388.13 million baht.
KBANK closed at 242.00 baht, unchanged, with a trading value of 5,884.09 million baht.
KTB closed at 42.75 baht, down 0.75 baht or 1.72%, with a trading value of 4,879.70 million baht.
GULF closed at 65.75 baht, up 0.50 baht or 0.77%, with a trading value of 4,817.96 million baht.
Mr. Narongdej Jantarapaisan, Director of Securities Analysis at AIRA Securities, said that the Thai stock market plunged sharply today. The primary factor was a heavy wave of selling in DELTA shares, which led the electronics sector lower and weighed significantly on the index. The market is concerned about AI capital expenditure (Capex), causing related stocks and semiconductor names to fall steeply — most notably in the South Korean market, where investors had employed excessive leverage. Back home, DELTA, HANA, and KCE all declined sharply, while the banking sector came under profit-taking pressure after having risen to a certain level. The overall picture was one of a major correction. He assessed that the market is likely waiting to see Q2 2026 earnings from most listed companies.
As for the U.S. Federal Reserve meeting, the outcome was not worse than expected, as the Fed voted to hold interest rates steady. However, what weighed on sentiment was the Fed Chair's ambiguous stance, while the Fed Watch Tool is pricing in one rate hike. Additionally, the 30-year U.S. Treasury yield rose more than the 10-year and 2-year yields, putting pressure on risk assets.
On the geopolitical front, the Middle East conflict has returned as a negative factor, though he noted that the market has already absorbed a significant amount of this news — it is merely additional noise and has become the New Normal, with energy prices rising and driving up costs. Tighter financial conditions and high-cost Capex acceleration are consequential factors that limit the upside.
Looking ahead to tomorrow, the market has a greater chance of declining further, though there may be a technical rebound, and the direction of the South Korean stock market will need to be monitored.
He set key support at 1,580 points and resistance at 1,600–1,610 points.
