Argus Group jumped 20 cents (5.9 percent) on the Bermuda Stock Exchange last week, trading 6,250 shares to close at $3.60. The company’s market capitalisation now stands at $77.4 million.KeyTech also had a good week, jumping 34 cents (5.9 percent), trading 2,050 shares to close at $6.15.Ascendant rose 47 cents (4.1 percent) to close at $12.03. Meanwhile, Butterfield Preferred dropped $1 (.1 percent) to close at $1215.Butterfield Bank, BF&M and Bermuda Aviation all traded shares closing at $1.26, $16 and $3.60, respectively, all with no change in share price.Overall, the BSX closed at 1,090.82, up 11.91 points (1.09 percent), trading 224,453 shares worth BD$353,247.63 and 1,037 US shares worth US$483,020.25.