KeyTech Ltd. fell 13.44 percent (94 cents) on The Bermuda Stock Exchange (BSX) yesterday.The telecommunications provider traded 4,400 shares to close at $6.05 for the day.Butterfield Bank’s preference shares also rose 0.08 percent ($1) to $1,236 with 13 shares changing hands.The bank also transacted 6,592 common shares, but its share price held firm at $1.34.Overall the Index dropped 11.76 points (one percent) to 1,164.76 with 10,992 shares worth BD$35,769.60 and 13 shares worth US$16,070.89 transacted.The BSX Insurance Index remained unchanged at 972.www.bsx.com