One Communications Ltd was the lone stock to trade on the Bermuda Stock Exchange.The telecommunications group closed unchanged on $3.90 as 50 shares changed hands.The Royal Gazette/BSX Index was unchanged on 1,833.85. For the week, the index slid 2.58 per cent, driven by falls in stock prices of Butterfield Bank, Ascendant Group and Bermuda Aviation Services. On Friday, the US-listed shares of Butterfield gained 40 cents, or 1.54 per cent, to close on $26.32 on unusually high volume of 515,224 shares. Butterfield last traded on the BSX at $25.25.The BSX Insurance Index gained 39.86 points, or 2.74 per cent, to close on 1,496.57.