The Bangladesh Securities and Exchange Commission on Tuesday asked the Dhaka and Chittagong stock exchanges to investigate any unusual price movement and deviation in earnings per share of listed companies.
The BSEC on the day issued a directive in this regard.
In the directive, the BSEC said that closing price changes, increase or decrease, by more than 50 per cent in 30 or less working days of a listed company must be investigated.
The bourses will consider market manipulation, insider trading and other market abuses during the investigation, it said.
In addition, earnings per share, annual or periodic, changes by 50 per cent or more compared to previous year or period of companies must be investigated.
The bourses also asked to inquire into price and volume changes by 30 per cent or more in 10 working days before publication of any price sensitive information.
The BSEC also asked the stock exchanges to probe average turnover of one month change five or more times compared with the average turnover of the previous six months.
The bourses asked to submit investigation report on the issues within 45 working days after the happening of any of the instances.
BSEC officials said the commission observed that share prices of many companies suddenly shot up without having any PSI that might hurt the interest of the market.
Moreover, many companies suddenly declare a huge profit or loss devoid of any logic that should be investigated for the interest of investors, they said.
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