SET Index Faces Overseas Pressure Despite Trump’s Olive Branch Signal

Mr. Suchet Suktae, Deputy Managing Director, Media Marketing Department of ASL Securities, during the “Kaohoon” program on March 31, 2026, reported that U.S. President Donald Trump has signaled the readiness to end the war in Iran, despite the ongoing blockage of the Strait of Hormuz. Meanwhile, Spain has closed its airspace for the U.S.’ Iran operation-related flights.

Despite the update, market participants have yet to respond to the news, however, both Brent and WTI crude has technically declined roughly $2-3 per barrel following the news, while gold has edged up $58 and silver has stabilized at $1.88.

ASL has set a key support level for the SET Index at 1,430 – 1,440 points, and a resistance level at 1,450 – 1,460 points for today’s session.

Mr. Suchet has highlighted the following stocks

  • COM7: The analyst set a key support level at THB 21.50 -21.30, and a resistance level at THB 22.50 – 23.20. The share price has moved sideways within a limited range, due to sales and subdued investors interest. The “Speculation” recommendation was given.
  • TIDLOR: The analyst set a key support level at THB 14, and a resistance level at THB 14.50 – 15.30. The finance sector is recognizing revenue from leasing, causing the prices to continuously slide to around THB 14.30. The analyst urged caution when trading this stock.
  • OR: The analyst set a key support level at THB 12 – 11.80, and a resistance level at THB 12.60 – 13.50. The company has recently closed a deal, raising investors’ interest. The “Trading” recommendation was given.
  • CPALL: The analyst set a key support level at THB 43.50 – 43, and a resistance level at THB 45.50 – 47.25. The short-term “Speculation” recommendation was given.
  • GUNKUL: The analyst set a key support level at THB 2.40 – 2.30, and a resistance level at THB 2.60. The “Speculation” recommendation was given.

For the petrochemical sector, Mr. Suchet stated that the shortages of some petrochemical products, raising interest for the sector and the related sectors. He highlighted the following equities:

  • SCC: The target price was given at THB 220 – 230.
  • IVL: The price exhibited an upward movement. The target price was given at THB 25 – 30.
  • PTTGC: The price moved sideways-up. The target price was given at THB 40 – 45.

However, the analyst cautioned that if the war situation has subsided, the upside from product shortages may be limited, causing a short-term profit-taking

Mr. Suchet also added that the oil prices and stocks may move sideways following the news of a strike on oil well by Iran and its ally.

As for the banking sector, the analyst noted that the sector’s prices have risen during the Iran war, which may reduce the bank’s revenue recognition. He urged investors to remain vigilant as the sector’s valuation is sharply soaring.

Regarding the news of the Royal Command appointing Mr. Anutin Charnvirakul and his cabinet as the new administration of Thailand, Mr. Suchet anticipates the new to bolster the Thai market in the short term, however, overseas factors may offset this catalyst. Should the market soar as high as 1,500 points, he advises investors to sell some of their shareholding to reduce potential risk.