I know that you have a question as to whether trading is indeed a matter of luck. As helpful as it may sound, one has to say that luck does indeed play a role in trading, even if it seems like some people hit the jackpot on a particular stock for instance.
The issue of trading opposes the concept that luck controls the entire process of trading. While it may take a level of the inside and sheer luck to make trading during a short period possible it is very important to observe that trading is more of skill, strategy and knowledge. There are many ways that traders employ in order to assess markets, establish trends, and make the right choices.