Citi Starts PTC Therapeutics At Buy, Sees One Of Year's Biggest Binary Events Coming By: Benzinga via Benzinga August 25, 2015 at 09:32 AM EDT Shares of PTC Therapeutics, Inc. (NASDAQ: PTCT) have declined more than 36 percent year-to-date. Citi’s Joel Beatty ... Read More >> Related Stocks: Ptc Therapeutics