Shares of Argus Group Holdings fell 10.29 percent (35 cents) on the Bermuda Stock Exchange yesterday, trading 200 shares to close at $3.05.Bermuda Aviation Services shares were uo 4.47 percent (15 cents), trading 1,000 shares to close at $3.50.And 10,000 shares of Bank of Butterfield stock traded but closed unchanged at $1.23.Overall, the BSX closed at 1.063.65, down 5.66 points (0.53 percent), trading 11,000 shares worth $15,725.