Indonesian Stock Exchange (BEI) and Financial Services Authority (OJK) change the regulation of auto rejection to control volatile movement in IDX Composite Index (IHSG). BEI modify the minimum limit for auto rejection in all fraction to 10% while keeping the maximum limit at 20% (Rp50-Rp200 shares), 25% (Rp200-Rp5,000) and 30% (more than Rp5,000). In addition, trading halt is also applied for sharp decline in the same trade day, from 30 minutes halt for 5% decline and trade suspend for 15% decline.