There were no trades on The Royal Gazette/BSX Index in a shortened trading day before the holidays.The index was unchanged at 2,380.37, while the BSX Insurance Index was down 19.77 points, or 1.14 per cent, at 1,719.27.On the New York Stock Exchange, shares of Butterfield Bank were down 49 cents, or 1.3 per cent, at $37.06.