Indonesia exchange plans more targeted share-trading surveillance
The exchange intends to rely less on Unusual Market Activity notices and use surveillance technology to identify suspected price manipulation.

The Indonesia Stock Exchange (BEI) plans to change how it monitors share trading, using a more targeted approach to investigate suspected price manipulation, president director Jeffrey Hendrik said on 26 October 2026.
Speaking at a press conference in Jakarta, Jeffrey said the exchange would introduce clearer methods and procedures intended to give the market clearer signals. It plans to reduce its reliance on Unusual Market Activity (UMA) notices as an initial surveillance measure, instead making greater use of technology to detect potential misconduct.
When the system identifies signs of irregular trading or attempted price manipulation, BEI will issue a report and begin an investigation, he said. Such reports may identify the shares under examination, the trading period in question and the parties involved. Public disclosures could also identify the exchange members through which those transactions were conducted.
During an investigation, the exchange may monitor securities-account activity or suspend particular accounts. Jeffrey said he hoped the revised approach would make surveillance more effective while maintaining investor protection.



