Abstract: We analyzed short interest on the Stock Exchange of Thailand as of October 30th, 2026, for stocks with a minimum market capitalization of USD100 million and minimum short interest worth USD5 million, estimating aggregated short interest of USD3,320m. Short interest decreased by 1.7% over the week, in line with the SET50 index, which also fell 1.7%. The largest weekly increases in short value came from Thai Oil, up USD12.1m to USD76m, SCC, up USD8.1m to USD72m, and Airports of Thailand, up USD7.0m to USD216m. The largest weekly decreases came from Delta Electronics, down USD43.6m to USD475m, Gulf Energy Development, down USD27.4m to USD122m, and CP ALL, down USD9.5m to USD138m. By number of shares, Thai Oil rose 33.1% week on week while PTT GlobalChem rose 21.9% and Banpu and Cal-Comp Electronics also registered notable increases.
Banpu, Thai Oil, PTT GlobalChem, SCC, Cal-Comp Electronics
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