امیرعباس صاحبقرانی

The growing expansion of financing through the capital market and the introduction of guidelines for the establishment of credit rating agencies require the development of appropriate credit rating models for financial instruments, on the other hand, the capital financing market framework is centered around sukuk bond. According to the SEO, in the case of credit rating agencies, Sukuk rating will also be required. On the basis of the above, the present study attempted to develop a credit rating model for Ijareh Sukuk as the most important and most advanced tool in financing the capital market, on the one hand, the problems with issuing a Ijareh Sukuk, including the mandatory existence of the guarantor, and, on the other hand, the transparency of the market will provide financing and accelerate the financing process through this market. In the present study, after studying the theoretical foundations, including the rules and instructions issued by the supervisory authority of the capital market, theoretical and scientific principles regarding the rating of securities and institutions procedures in the field of credit rating  Ijareh Sukuk, the basic The model of credit rating is then developed, then the dimensions, components and indexes of the model have been subjected to expert opinion using the Delphi research method. Finally, based on the received comments, the final framework of the Ijareh Sukuk rating system was developed on Iran's capital market.

Prediction of stock returns is always one of the most important discussions of financial markets, which has led to introducing of various models to pricing financial assets, one of the most important of these models is to measure the surplus returns by Fama &  French model was introduced in the form of a 5-factor model which, in spite of its satisfaction with the model, is still in conflict with many anomalies in the market, which the model can not explain, in the same way The purpose of this paper is to examine the strength of Five Factor Model of Fama & French (2015) for explaining volatility as a market anomaly.The sample consists of 168 companies listed in Tehran Stock Exchange. Portfolio Analysis is the approach of this paper for testing explanatory power of the Five Factor Model. Results show that profitability and investment factors couldn’t explain excess returns. This conclusion contradicts the model of Fama and French (2016).