Cross-sectional stock returns, Market liquidity risk, and Financial market anomalies

To achieve the optimal model for capital asset pricing has always been a central issue in studies of the financial field. In this study we consider Fama and French three-factor model augmented by the Pastor and Stambaugh (2003) liquidity risk factor. Unlike most previous studies in this model, stock level beta is allowed to vary with firm-level size and book-to-market value. To verify the above mentioned model, risk-adjusted returns calculated using the model and its relationship with financial market anomalies are examined. The examined anomalies in this study are: firm size, ratio of book value to market value, stock turnover ratio and the past returns. Using individual daily and monthly returns of sample’s companies of Tehran Stock Exchange and Securities for the period 1380 to 1393, we find that all considered anomalies can be captured by this model.