The Royal Gazette/Bermuda Stock Exchange Index lost eight points yesterday to close at 3,600.59. Bermuda Commercial Bank Ltd. closed unchanged at $7.50 after investors traded 50 shares. KeyTech Ltd. ? the parent company of Logic, BTC, Mobility and part owner of QuoVadis and CableVision ? was the only other stock to record movement. It lost 40 cents and closed at $10.30 when investors traded 3,900.