This study examines the impact of firm characteristics, signaling variables and financial variables on IPO initial returns and the volatility of initial returns. Hierarchical regression is first performed on all the three blocks of variables, after which a stepwise regression is executed to...

This paper re-examines the issue of mean reversion in stock prices by incorporating the structural break effect in the long horizon regression. Before adjusting for structural break, the paper finds that previous studies understate the evidence of mean-reversion. The understatement is mainly due...

In this paper we investigate long range dependence in twenty two world stock markets for the time period Jan-2000 to Sep-2013. A three stage analysis is performed, applying test for stationarity, test for nonlinearity, and finally, estimation of Hurst exponent using Rescaled Range Analysis. In...

In this paper, we use stock price data between the years 2007 and 2010 to investigate the allocation of assets on the GSE. The Classical Markowitz optimization method shows that, the most profitable portfolio is obtained by investing 90% of wealth in non-financial assets and 10% in financial...

A potential important source of jumps in stock returns can be material news events. In this paper, we collect 21 million news articles associated with more than 9000 publicly-traded companies and use textual analysis to derive measures summarizing those news. We find that measures of news flow...

We separate downloads on the SEC EDGAR database into human and machine actions by the intensity of information retrieval (Ryans, 2017). The split shows that the extent of machine downloads has risen 35 times since 2004, accounting for over 96% of total downloads as of 2016. We formally...

Rapach, Ringgenberg and Zhou (2016) claim that for the sample period 1973 to 2014 "short interest is arguably the strongest known predictor of aggregate stock returns", that it "outperforms a host of popular predictors", and that it represents "informed traders who are able to anticipate changes...

In this paper, we use event studies to estimate the effects of changes to a public firm's board of trustees on stock returns. The goal is to determine whether the gender of an incoming board member is perceived differently by investors. Scholarly findings on gender and leadership have been mixed...

This study investigates the price movement characteristics of banking issuers listed on the Indonesia Stock Exchange with macroeconomic indicators as an exogenous variable. By using the k-means clustering based on the monthly rate of return, banks are classified into three clusters, lower,...

This paper proposes a novel standardized test for abnormal returns in long-horizon event studies that takes into account cross-sectional correlation, autocorrelation, and hetersoskedasticity of stock returns. Extensive simulation analyses demonstrate improved size and power of testing relative...