It was another busy day of trading for Butterfield Bank on the Bermuda Stock Exchange (BSX) yesterday.Thirty thousand of the bank’s common shares were traded as the share price remained unchanged at $1.25. Three of Butterfield preferred shares also changed hands, with the price unchanged at $1,216.No other issues traded, leaving The Royal Gazette / BSX Index unchanged on 1,066.95. Volume was 30,003 shares and turnover topped $41,000.