Convenience The fact that you need to go to bed or spend time with your family does not stop the forex markets from operating. In other markets you can trade a specific window that usually lasts 6-10 hours, which is physically manageable. Forex, on the other hand, demands 24 hour monitoring. That can be accomplished through automated trading systems or, less optimally, through pre-set stop and limit orders or physical monitoring of a trade. Cost “No commission trading” is a marketing slogan many dealers offer as a perceived benefit of forex. But the fact that there is no commission does not change the high level of transaction costs paid to dealers through the bid-ask spread.