سیستم فازی معاملات سهام هوشمند کوتاه مدت برای کمک به سرمایه گذاران در مدیریت پرتفوی

The results suggest that, with or without taking into consideration transaction costs, the return of the proposed fuzzy model is superior to the returns of the buy and hold strategy. Τhe proposed system can be characterised as conservative, since it produces smaller losses during bear market periods and smaller gains during bull market periods compared with the buy and hold strategy.