Canadian stocks fell to a two-week low on Friday, capping the third weekly decline in four, as commodities producers tumbled with the price of gold and oil. Labrador Iron Ore Royalty Corp. lost 6.2 per cent as the price of iron ore retreated to the lowest in more than six years. Penn West Petroleum Ltd. and Pengrowth Energy Corp. lost at least 3.8 per cent as oil trimmed a weekly advance. Yamana Gold Inc. dropped 1.4 per cent as gold fell for the first time in eight sessions. BlackBerry Ltd. rose 2.5 per cent after posting a surprise profit after cutting costs. The Standard & Poor’s/TSX Composite Index fell 57.38 ... (full story)