Shares of Argus Group Holdings Ltd improved by 19 cents, or 7 per cent, to $2.90 after 4,000 traded on The Royal Gazette/BSX Index.While on the New York Stock Exchange, shares of Butterfield Bank were down 30 cents, or 1 per cent, at $29.22The Royal Gazette/BSX Index was up 3.8 points, or 0.18 per cent, at 2,077.16, while the BSX Insurance Index was down 10.76 points, or 0.63 per cent, at 1,698.46.