Butterfield Bank fell by one cent as 163,000 of its shares traded on the Bermuda Stock Exchange (BSX) yesterday.The bank’s shares closed the day’s trading at $1.22.Butterfield was the only domestic-board stock to trade yesterday. The Royal Gazette / BSX Index closed 4.74 points lower at 1,064.07.More than 174,000 shares traded in total, while turnover was just shy of $308,000.