Harta Djaya Karya is trading 9.79% higher at IDR 157.00, extending a sharp short-term rally. - Price context shows gains across successive sessions. - No reliable report identified a new company announcement on September 29 directly explaining the rise. - Earlier coverage discussed a planned rights issue and acquisition, but does not establish the cause of this move. Broader U.S. market sentiment was negative and does not clearly explain the gain either.