Stocks Hitting 52-Week Lows By: Benzinga via Benzinga September 09, 2015 at 10:04 AM EDT Tetraphase Pharmaceuticals Inc (NASDAQ: TTPH) shares touched a new 52-week low of $9.55 after failing to meet the primary endpoint of ... Read More >> Related Stocks: Del Frisco's Restrnt Kinross Gold Corporation Tetraphase Pharmaceu Yamana Gold