Argus fell 15 cents (3.89 percent) on the Bermuda Stock Exchange (BSX) last week trading 100 shares to close at $3.70.KeyTech also fell 19 cents (3.16 percent), closing at $5.81 and Ascendant Group fell 25 cents (2.12 percent) to close at $11.50.Meanwhile, Butterfield Bank rose one cent (.78 percent) to close at $1.28 and Butterfield Preferred rose $1 (.08 percent) to close at $1,231.Overall, the BSX closed at 1,093.19, down 2.5 points (.22 percent).