Butterfield Bank jumped five cents (3.7 percent) on the Bermuda Stock Exchange last week, trading 141,937 shares to close at $1.40.Ascendant Group also rose 10 cents (.9 percent), trading 100 shares to close at $11.55.Butterfield Preferred and BF&M also traded shares, both with no change in share price.Overall, the BSX closed at 1,140.76, up 15.06 points (1.31 percent), trading 143,637 shares worth BD$220,299.19 and 659 US shares worth US$68,095.45.