EN
The article presents the performance analisys issues of buy-sell decisions agents’ in a-Trader system. The system allows for supporting of investment decision on FOREX market. The first part of the article contains a description of a-Trader system. Next, the algorithms of the selected buy-sell decision agents are presented. The evaluation function of agents’ performance is elaborated, and the manner of performance analisys executing is presented in the final part of the article.