The benefits of trading software simply have to be so convincing that any disadvantages can be accepted. Since the trading softwares are very popular, the benefits should actually be more than clear. The first advantage with which the trading software can score is the lack of emotionality. This sounds funny at first, but emotions play a big role in trading. If the dealer is under pressure due to turbulent events or becomes nervous, this obviously influences his trading decisions. It is much harder to make good decisions in a state of nervousness than with a cool head.
And the automated trading systems have just that: a cool 24/7 head. Very practical, because if things are going really well in the world, the software can make good trading decisions based on the facts. One of the main reasons why trades are not successful at times is emotional reactions to market changes. Imprudent reactions simply do not belong to the repertoire of action of such software. Another advantage is that these trading systems actually trade day and night.