Butterfield Bank fell 2.98 percent (four cents) to $1.30 on The Bermuda Stock Exchange (BSX) yesterday.The bank traded 29,700 shares during the day.The Ascendant Group Ltd also declined 0.35 percent (five cents) to $14.05 with 2,000 shares changing hands.Other traders included KeyTech Ltd and BF&M Ltd which transacted 27 and 16 shares respectively, but their share prices held firm at $14.05 and $14.60 respectively.The Index, as a whole, dipped 19.58 points (1.69 percent) to 1,140.9 as 31,743 shares worth $67,227 were traded.The BSX Insurance Index also slipped 12 points (1.17 percent) to 1,011.