I do trade at work but I don't trade on our work computer. I do all trading on my personal computer or on my phone. One thing that can make trading on my office computer a terrible idea is that, I may not be there forever and the system is not too secured for my account details, it could be invaded by anyone and could expose my account to hackers. Why I could even trade at work is that I am usually alone in my office so, I have some privacy