Although there was a chance to make a quick buck just before the quarterly and after the release of the information to the public, I would be cautious in giving advice that it could only go up, especially to a first time invester. In the end it's a zero sum game.
On the flip side there is money to be made in game companies and publishers but again never invest unless you can part with the money for good. For instance Ubisoft has performed very well since the rather chaotic restructuring, cancellatios and delays in 2010, 2011. If you got in back in the end of 2011 you would be happier than for instance buying safer investment options such as debts etc.
Who knows what the future of Funcom holds?