Argus Group Holdings Ltd slipped 9.81 percent (49 cents) on The Bermuda Stock Exchange (BSX) yesterday.The local insurer traded 4,500 shares to close at $4.50.Overall the Index was also down 8.92 points (0.76 percent) at 1,169.25 with 4,500 shares worth $20,250 changing hands.The BSX Insurance Index, however, was up 20 points (2.32 percent) at 882.