Barclays would have held most of the shares on behalf of pensioners and other investment clients through its subsidiary, Barclays Global Investors (BGI), one of the world's biggest fund managers. The bank is believed to have also held shares on its own account worth about £75m at the end of March. But the shares were suspended in New York last Tuesday at only 83 cents. WorldCom is now worth less than £1.6bn and may file for bankruptcy.