Mistaken CDS account suspensions delay CSE market opening after a technical error led to the inadvertent suspension of several active investor accounts, forcing the Colombo Stock Exchange (CSE) to postpone the start of regular trading by more than two hours.
Mistaken CDS account suspensions delay CSE market opening after active accounts affected
The disruption occurred on Thursday after Central Depository System (CDS) Ltd. implemented the suspension of CDS accounts that had remained inactive for more than 15 years, following a prior notice issued on 15 June 2026.
According to a statement issued by the Colombo Stock Exchange, the scheduled account suspension was carried out on 30 June 2026. However, during the implementation process, a number of active CDS accounts were mistakenly suspended alongside the intended inactive accounts.
The issue was identified during the market’s pre-open session, prompting the exchange to extend the Market Auction Call to allow sufficient time to restore the affected accounts before trading commenced.
As a result, the stock market’s regular trading session began at 11.00 a.m., approximately two and a half hours later than the normal market opening time.
The Central Depository System, which serves as the electronic securities depository for the Sri Lankan capital market, maintains investor accounts and facilitates the settlement and custody of listed securities. Any disruption affecting CDS accounts has the potential to impact investors’ ability to participate in market trading.
The Colombo Stock Exchange said extending the pre-open session was necessary to ensure that all affected accounts were reinstated before trading began, thereby maintaining a fair, transparent and orderly market.
In its statement, the exchange expressed regret over the inconvenience caused to investors, stockbrokers and other market participants by the delayed commencement of trading.
“The extension of the pre-open session was necessary to ensure a fair and orderly market,” the CSE said, adding that the affected CDS accounts had been restored before the market officially opened.
The incident underscores the importance of operational safeguards when implementing system-wide administrative changes within the capital market infrastructure. While the suspension programme was intended to deactivate only accounts that had remained inactive for over 15 years, the unintended impact on active accounts temporarily disrupted normal market operations.
Despite the delayed opening, trading resumed once the affected accounts were restored, allowing investors to participate in the day’s session without further operational interruptions.
The Mistaken CDS account suspensions delay CSE market opening incident highlights the critical role played by the Central Depository System in ensuring seamless settlement and trading operations, as well as the need for robust verification procedures during large-scale account maintenance exercises.