We can do most of the trading activities online these days; hence we do not need to sit and do trading at one place all the time. Desktop computers give the freedom to upgrade hardware specs to meet the trading software/tools requirements. But if you do trading at the physical stock market where you need to visit or do trading with friends in different places every time, or you learn to trade at a college/institute where you need to carry your computer, then the laptop is the ideal choice. Since nowadays we can buy powerful laptops that can be connected and extended to multiple display monitors, laptops are the preferable computer for trading.