The Capital Market Authority (Tadawul) has called on 381,700 holders of old share certificates worth SR 7.5 billion for reporting to the Authority for modernizing their portfolios to receives their profits from previous years. In a statement to Saudi Press Agency (SPA), the Authority's Chief Executive Officer Abdullah Al-Suweilmi pointed out that these holders, about whom there is no information, possess about 448,000 certificates which have been not listed in investment portfolios, stressing the importance of depositing these certificates in investment portfolios.