Sri Lanka’s renewed effort to prevent market manipulation is placing greater emphasis on surveillance, investigation and enforcement, but the history of high-profile cases shows that restoring confidence in the Colombo Stock Exchange (CSE) requires more than stronger rules. It requires investors to believe that the same standards apply regardless of a market participant’s wealth, corporate connections or position within the business establishment.
One of the cases that continues to attract attention is that involving investor and businessman Nimal Perera.
Perera has been a prominent figure in Sri Lanka’s corporate and investment circles. His professional career has included senior positions in major companies, including leadership roles connected to Vallibel One and other businesses. His corporate profile has included positions across banking, finance, manufacturing, plantations and leisure, giving him extensive exposure to several important sectors of the economy.
That background is relevant when examining the broader question of market integrity not because senior business positions themselves imply wrongdoing, but because sophisticated investors with extensive corporate networks can operate in markets where information, relationships and access can have considerable value.
The Securities and Exchange Commission (SEC) has previously taken enforcement action concerning Perera’s trading activities.
SEC records state that W.D.N.H. Perera requested compounding in relation to the creation of a false market or misleading appearance of active trading in Regnis Lanka PLC shares between September 13 and October 13, 2011.
The Commission agreed to compound the matter following payment of Rs.3.3 million to its Compensation Fund. A separate SEC record concerns similar conduct involving ASCOT Holdings PLC between September 5 and September 12, 2011, again involving a Rs.3.3 million payment.
Importantly, these regulatory settlements should be reported accurately. They were compounding proceedings and should not be presented as criminal convictions. Contemporary reporting stated that the SEC compounded the matters following Perera’s request and without an admission of liability.
The significance of these cases lies in what they reveal about the vulnerability of the market.
A false appearance of active trading can potentially influence other investors by creating an impression of demand or market interest that does not accurately reflect underlying conditions. For a market dependent on investor confidence, such conduct can have consequences well beyond the individuals involved.
The SEC says its present system includes real-time market monitoring designed to detect abnormal price movements and possible manipulation. Its Investigations Division investigates suspected market malpractice under the Securities and Exchange Commission Act No.19 of 2021, with investigations potentially arising from surveillance referrals or complaints, including anonymous complaints.
The regulator’s enforcement record also demonstrates that manipulation remains a live concern rather than merely a historical problem. Current court cases include allegations of market manipulation, conspiracy and aiding and abetting involving several listed securities, with matters still pending before the courts.
This makes the CSE and SEC’s preventive role particularly important.
Modern surveillance should identify unusual trading patterns quickly, while regulators must be able to examine connected accounts, beneficial ownership, coordinated transactions and potential conflicts of interest. At the same time, enforcement must respect due process and the presumption of innocence in cases that remain before the courts.
The reopening of earlier market-manipulation investigations in 2026 has added another dimension to the debate. Reporting in May indicated that the SEC was revisiting older investigations involving trading activities from the 2010–2015 period, including matters associated with prominent market participants.
For Sri Lanka, the objective should ultimately be straightforward: a stock market where prices reflect genuine supply and demand, investors receive reliable information, and enforcement is independent, timely and transparent.
The Perera case is therefore best understood not as a judgment on one individual, but as part of a much larger test facing Sri Lanka’s capital market whether its regulatory institutions can ensure that corporate influence and market power never become substitutes for market discipline.