12 Biggest Mid-Day Losers For Monday By: Benzinga via Benzinga October 17, 2016 at 13:27 PM EDT PTC Therapeutics, Inc. (NASDAQ: PTCT) shares dropped 32 percent to $9.02 after the company reported a regulatory ... Read More >> Related Stocks: Corenergy Infrastructure Trust Inc Marathon Oil Opus Bank Pandora Media Inc Pearson Plc ADR Ptc Therapeutics Sterling Infrastructure Inc WT Offshore Waddell & Reed Financial