The Bermuda Stock Exchange closed yesterday at 1,107.31, up 7.79, or 0.7 percent.Some 7,500 Butterfield shares traded closing unchanged at $1.30.Around 500 shares in Argus Group traded closing at $3.75 and 400 BF&M shares changed hands, ending the day at $15.74.Ascendant Group also traded, as 200 of the shares were exchanged, to close at $13.67.