Bank of NT Butterfield Preference shares jumped $5, or 0.4 percent, to $1,195 on the Bermuda Stock Exchange yesterday as ten shares changed hands.Ascendant Group Limited lost one cent, or 0.1 percent, to $11.74 as 600 shares changed hands.Overall, the BSX Index fell 0.09, or 0.01 percent, to 1,144.02 on light trading.