The Bermuda Stock Exchange ended the week up 18.19, or 1.57 percent at 1,154.02.Some 122,017 Butterfield shares traded, ended the week at $1.40, up 2.2 percent, or 3 cents.Ascendant Group shares closed up 75 cents, or 6.8 percent, at $11.75, as 2,300 shares changed hands.KeyTech fell 20 cents, or 3.3 percent, to ended the week at $5.80 as 1,000 shares traded.