Thai Stock Market Declines in Morning Session Amid Sector Pressures
The Stock Exchange of Thailand (SET) index fell by 12.11 points during the morning session on October 29, 2026, driven by sell-offs in the petrochemical and refinery sectors.
On the morning of October 29, 2026, the Stock Exchange of Thailand (SET) index experienced a decline of 12.11 points, closing the session at 1,553.99 points. According to reports from Prachachat Business, the downward trend was primarily influenced by significant selling pressure within the petrochemical and refinery sectors. Key stocks contributing to this decline included PTTGC, SCC, and TOP, which faced market volatility amid announcements regarding joint venture deals. Additionally, shares of DELTA saw a notable drop following the release of third-quarter 2026 financial results, which failed to meet market expectations. For residents and investors, this market movement highlights the sensitivity of the Thai bourse to sector-specific performance and corporate earnings reports. While the immediate impact is reflected in the index, the broader implications for the economy depend on how these major industrial players navigate their current joint venture negotiations and recovery strategies. It remains to be confirmed how these stocks will perform in the afternoon session and whether the market will stabilize as further details regarding the petrochemical joint ventures are disclosed to the public.
