The benchmark index was down 1.85 percent on Monday and plunged again by more than 3 percent in the morning trading session on Tuesday.

The Indonesia Stock Exchange (IDX) Composite index plunged as the market opened on Monday, extending its downward trend following the MSCI index rebalancing announced last week.

The benchmark index was down 1.85 percent on Monday and plunged again by more than 3 percent in the morning trading session on Tuesday.