Devonshire Industries jumped 50 cents (11.11 percent) on the Bermuda Stock Exchange last week, trading 2,000 shares to close at $5.Bermuda Aviation Services also rose 15 cents (5.26 percent), trading 100 shares to close at $3.Ascendant Group traded 4,070 shares and KeyTech traded 50 shares, as neither share price changed, to close at $13 and $4.96 respectively.Butterfield Bank traded 29,700 shares to close unchanged at $1.25.Overall, the BSX closed at 1,070.02, up 0.83 points (0.07 percent), trading 35,920 shares worth BD$100,594.60 and 50 shares worth US$397.50.