Bumi Resources is trading at IDR 131.00, down -4.38%; no clear same-direction catalyst was identified.
- Reports published October 26–27 said Bumi Resources acquired Mount Margaret, an Australian copper and gold company, for US$22.01 million. Coverage described the deal as diversification beyond coal, not as a cause of the decline.
- The Jakarta Composite fell 0.13% and the rupiah weakened, but the modest market move does not establish why Bumi Resources fell.