With more than 33% of GoPro's outstanding shares currently sold short, a lot of people are betting against the camera maker. This could work in shareholders' favor, as any upbeat news out of the company could trigger a short-squeeze -- meaning those who sold short have to buy shares to cover their position -- and send the stock higher. GoPro has exciting new technology coming out in 2016 including drones and a virtual reality rig. Investors also aren't wrong to anticipate new product refreshes, which if successful, could reboot investor confidence in GoPro stock.