Butterfield Bank Preferred jumped $5.00 (.40 percent) on the Bermuda Stock Exchange yesterday to close at $1,235 with 20 shares trading. KeyTech traded 3,000 shares to close at $5.25, Argus traded 300 shares to close at $4.10, Butterfield Bank traded 1,360 to close at $1.25, all with no change in share price.Overall, the BSX had no change, closing at 1,086.55, trading 4,660 shares worth BD$18,680 and 780 shares worth $31,786.