The Royal Gazette/Bermuda Stock Exchange Index lost 31.417 points yesterday to close at 3,289.09. BF&M saw the most activity during the week with investors pushing down the price $1.95 to $13 after trading 23,100 shares. Argus Insurance closed unchanged at $27 when investors traded 2100 shares. BELCO Holdings Ltd. gained five cents and closed at $41.05 when investors traded 500 shares. Keytech Ltd. the parent company of Logic, BTC and Mobility and part-owner of Cablevision and QuoVadis lost 40 cents and closed at $10.30 when investors traded 15,000 shares. Butterfield Bank closed unchanged at $41.50 after 6,142 shares moved.