The BSX closed at 1,161.69 with no change, despite several trades.KeyTech Ltd saw 253 stocks move at 5.70, while 2000 Argus Group Holdings Ltd changed hands at 4.73.Butterfield shares were active with 20,100 Bank of NT Butterfield Ltd moving at 1.39 and 46 Bank of NT Butterfield Preference Shares for 1200.00.