The Bermuda Stock Exchange (BSX) remained unchanged at 1,291.53 yesterday with 3,006 shares worth BD$4,864.50 and 37 shares worth US$46,170.78 traded.Butterfield Bank saw 3,000 common shares change hands, but its share price held firm at $1.60, while it also transacted 37 preference shares, which also remained unchanged at $1,230.The BSX Insurance Index, however, fell by seven points (0.72 percent) to close at 966.