KeyTech shares rose 5.26 percent, or 30 cents, to close at $6 on the Bermuda Stock Exchange yesterday.Some 4,700 KeyTech shares changed hands.Butterfield shares also traded, closing unchanged at $1.39 as 158,787 of the bank’s shares traded.Overall the BSX closed up 3.70, or 0.32 percent, at 1,165.39