Argus Group Holdings Ltd fell 0.2 percent (one cent) on The Bermuda Stock Exchange (BSX) yesterday.The insurer traded 500 shares to close at $4.55.Butterfield Bank also saw 2,500 shares change hands, but its price held firm at $1.27.Overall the Index dropped 0.18 points (0.02 percent) to 1,107.39 with 2,500 shares worth BD$3,175 and 500 shares worth US$2,275 transacted.The BSX Insurance Index, however, rose six points (0.59 percent) to 1,026.