ESSA Industries Indonesia is trading at IDR 476.00, down 15.00%; an October 19 report linked the broader Indonesian share sell-off to volatility following an MSCI announcement. - The report cited ESSA among several stocks, not as an isolated company-specific decline. - Foreign investors net bought Rp 13.4 billion of ESSA during the October 16 session; no new company-specific catalyst was confirmed. - The decline refers to the October 16 close, not a verified October 19 trading move.