Argus group and KeyTech rose more than 5 percent each on the Bermuda Stock Exchange yesterday.Argus rose 5.8 percent, or 20 cents, to close at $3.60 on a volume of 6,250 shares.And KeyTech rose 5.8 percent or 34 cents, to close at $6.15 as 2,050 shares changed hands.Some 4,400 Bermuda Aviation Services shares traded, closing unchanged at $3.60.Butterfield Bank also closed unchanged, at $126, as 130,773 shares traded.Butterfield Preference shares fell $1 to close at $1,215 on a volume of 392.Overall the BSX closed up 7.82, or 0.72 percent, at 1,090.82.