JPMorgan analyst Paul Coster recommends buying shares of GoPro into the action camera maker's Q2 results on July 27. The company should meet or beat low expectations, reiterate full year revenue guidance, and provide "constructive commentary" regarding introduction of the next Hero product family, Coster tells investors in a pre-earnings research note. The analyst likes the stock's set-up with 36% of the float short. Investor skepticism is elevated, Coster argues. He keeps an Overweight rating on GoPro with a $17 price target. The shares closed yesterday down 11c to $10.90.