Optimal Portfolio Stock Exchange Using Meta-heuristic Algorithms

One of the most applicable optimization approaches used in different sciences is Meta-heuristic Algorithms. This study, by new Meta-heuristic Algorithms, Symbiotic Organisms Search (SOS), introduces the model for selection of optimum portfolio and then the result is compared with the result of older algorithm, Genetic Algorithm (GA) and Particle Swarm Optimization (PSO). Therefore, the ten-month information of operation of 50 top companies in the Stock Exchange is extracted and estimated an optimized portfolio with the objectives of maximum efficiency and minimum risk by Symbiotic Organisms Search (SOS), Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) is estimated. The results of the algorithm showed that despite the ability of these algorithms to portfolio optimization, SOS algorithm has a higher ability to optimization.