Butterfield Bank traded 15,600 shares on the Bermuda Stock Exchange yesterday to close at $1.16 with no change in share price.Butterfield Preferred traded 25 shares to close at $1,235, Argus traded 5,137 shares to close at $4.10; BF&M traded 5,981 shares to close at $15.25; Bermuda Aviation Services traded 3,000 shares to close at $3.10 and Ascendant Group traded 8,238 shares to close at $13.20 all with no change in share price.Overall, the BSX had no change, closing at 1,043.90, trading 37,956 shares worth BD$247,561.20 and 25 US shares worth US$31,336.11.