Argus Group Holdings Ltd shares dropped 24 cents, or 8 per cent, to $2.76 after 1,000 traded on The Royal Gazette/BSX Index.Meanwhile, BF&M Ltd improved by 20 cents, or 1.1 per cent, to $18.50 after 200 changed hands.Butterfield Bank shares were up 45 cents, or 1.5 per cent, to $30 after 107 were traded. In New York, the bank’s shares were up 38 cents, or 1.26 per cent, at $30.59.The Royal Gazette/BSX Index was up 16.97 points, or 0.83 per cent, at 2,052.62, while the BSX Insurance Index was down 10.39 points, or 0.61 per cent, at 1,705.39.