Recently, understanding the anomalies in financial markets have severely chal-lenged the efficient market hypothesis (EMH). The price momentum is one of the anomalies described as the unexplained short-term return by Fama and French (1996). The present research strives for modeling the price momentum of winner stock in the Iranian capital market. The grounded theory method was used to explain t...

This paper sheds empirical light on whether investor sentiment affects the profitability of price momentum strategies. We hypothesize that when investors are optimistic, their expectations will be more miscalibrated relative to those obtained from objective probabilities, and arbitrage will be more difficult with short-selling constraints. Our results show that momentum rises only when investor...

We show that stocks with higher idiosyncratic volatility display greater price momentum; a relation which is economically large, statistically significant, and robust. Stocks with higher idiosyncratic volatility also experience quicker and larger reversals. These findings are consistent with the view that momentum profits are attributable to underreaction to firm-specific information. Our findi...

This study shows that past trading volume provides an important link between “momentum” and “value” strategies. Specifically, we find that firms with high ~low! past turnover ratios exhibit many glamour ~value! characteristics, earn lower ~higher! future returns, and have consistently more negative ~positive! earnings surprises over the next eight quarters. Past trading volume also predicts bot...

the main purpose of this study, is surveying the factors that affect price impact of block trades in the stock market. for this reason, the sample consisted of 525 block trades have been selected randomly of accepted companies in tehran stock exchange, that have block trade during the period 1390 to 1392. in this paper, total, temporary and permanent price impact is used as dependent variables,...

Various models have been proposed to explain the short-term price momentum anomaly. And also various factors such as industry, trading volume, firm size, and analyst coverage that could affect the price momentum have been found. We introduce another two factors that could affect the momentum profits, Intangible Assets and R&D Expenditures. We find that the short-term momentum profits are decrea...