Friday's trading. Three stocks and one bond traded. A volume of 3,745 shares valued at $54,180.75 and 31,125 bonds valued at $28,323.75 changed hands. The Bank of Bermuda rose $0.50 to close at $18 on a volume of 2,019. Trading unchanged were BF&M 9% preference shares at $9 on a volume of 1,500, and BELCO Holdings at $20 on a volume of 226. Bermuda Telephone Co. 7.75% bond traded unchanged at $91.