I went through all the companies in all sectors of the ISX for 2012 and identified those that gained for that period. Companies in five of the sectors posted gains, with the banking sector posting the most gainers. However, two companies in the industry sector appeared to show the most gain for that period. My question is, as a beginning investor am I approaching the issue of selecting companies to invest in properly, or is their other considerations to be made as part of the equation?