List of Articles Portfolio Open Access Article Abstract Page Full-Text 1 - Financial Risk Modeling with Markova Chain Fraydoon Rahnamay Roodposhti Hamid Vaezi Ashtiani Bahman Esmaeili Open Access Article Abstract Page Full-Text 2 - Comparison of Portfolios Formed by Use of Grid Strategy Model Based on New and Traditional Variables Performance With Sharpe and Treynor Measures (Evidence of IRAN Exchange) Open Access Article Abstract Page Full-Text 3 - Portfolio Optimization Problem Considering Cardinality and Bounding Constraints Using a Metaheuristic Algorithm Shohreh Zakaei Mohammadreza Sanaei Akbar Mirzapour Babajan