Butterfield Bank dropped 5.2 percent, or 6 cents, last week on the Bermuda Stock Exchange.The Bank’s shares closed the week at $1.10, on a trading volume of 136,201.Bermuda Aviation Services also fell, closing at $3. The shares fell 3.2 percent or 10 cents for the week, on a volume of 7,400.Utilities KeyTech and Ascendant both rose; KeyTech gaining 4.8 percent or 25 cents to close the week at $5.50 on a volume of 5,000, and Ascendant increased 3.6 percent, or 46 cents, to $13.67 on a volume of 12,438.BF&M rose 3.2 percent for the week to close at $15.74.Overall the BSX fell 1.78 percent, or 18.30, to close out the week at 1,025.60.