Shares of KeyTech also dropped 3 percent ($0.20) in trading to close at $5.80 a share. 13,5000 shares changed hands.However, shares of Bermuda Aviation Services shot up 14 percent ($0.50) ending the day at $4.00 with 800 shares trading.Shares of Ascendant Group and Bermuda Press Holdings also traded but ended the day unchanged.Overall, the BSX closed down 23.92 points (2 percent) at 1,173.85.