Butterfield Bank shares traded on the Bermuda Stock Exchange (BSX) yesterday.Some 50,600 of the shares changed hands, but the price was unchanged at $1.20.Utility company Ascendant Group also traded, with 9,200 of the shares trading hands, closing down 40 cents, or 2.9 percent, at $13.25.Overall the Index closed down 3.48 or 0.32 percent at 1,080.48.The Bermuda Insurance Index ended the day at 959.00, down 7.00.