Piper Jaffray Upgrades Imax: 'China Volatility Presents Opportunity' By: Benzinga via Benzinga July 13, 2015 at 07:43 AM EDT In a report published Monday, Piper Jaffray analyst James M. Marsh upgraded the rating on IMAX Corporation (USA) (NYSE: IMAX) from ... Read More >> Related Stocks: Imax Corp