Butterfield Bank shares ended the week at $1.39, unchanged, as 43,089 shares changed hands.BF&M dropped 40 cents to $19.30 on a volume of 2,000 shares.Ascendant Group also declined, by some 30 cents to $11.20 on a volume of 1,000 shares.KeyTech fell 65 cents, to ended the week at $5.55 as 5,900 shares traded.Overall the BSX ended the week down 13.37, or 1.14 percent, at 1,170.09.