Argus Group fell 10 cents, or 3.4 per cent, to $2.80 after 13,000 shares changed hands on The Royal Gazette/BSX Index.Meanwhile, shares of Butterfield Bank improved $1, or 3 per cent, to $34.25 after 554 traded. In New York, the bank’s shares were up 65 cents, or 1.9 per cent, at $34.95.The Royal Gazette/BSX Index was up 42.98 points, or 1.93 per cent, at 2,271.24, while the BSX Insurance Index fell 3.68 points, or 0.22 per cent, to 1,674.7.