Butterfield Bank traded 307,105 shares to close at $1.25 yesterday on The Bermuda Stock Exchange (BSX).Overall the Index opened and closed at 1,096.78 with 307,106 shares worth BD$341,638.90 and 1,300 shares worth US$9,880 traded.The BSX Insurance Index finished the day up 3.00, or 0.31 percent, at 970.00.