We examine the performance of the buy-write option strategy (BWS) on the Australian Stock Exchange and analyse whether such an investment opportunity violates the efficient market hypothesis on the basis of its risk and returns. This study investigates the relationship between buy-write...

Using Bloomberg’s daily Twitter Sentiment data for S&P500 firms, we show that Twitter information reduces forecast optimism and improves forecast accuracy of sell-side equity analysts. Negative Twitter information is more influential, and this effect is distinct from the impact of news. Using...

While the unfolding financial turmoil has involved new elements, more fundamental elements have remained the same. New elements include structured credit, the originate-to-distribute business model and the tri-party repurchase agreement. The recurrence of crises reflects a basic procyclicality...

We find evidence that hedge funds significantly manipulate stock prices on critical reporting dates. We document that stocks held by hedge funds experience higher returns on the last day of the quarter, followed by a reversal the next day. For example, the stocks in the top quartile of hedge...

Based on full-displayed limit order book data from the electronic trading system Xetra, I study traders' tendency to herd in their decisions to buy or to sell securities around the time of news release. In more detail, I study the impact of company-specific, real-time messages routed by Reuters...

Using analysts' stock recommendations this paper shows gender heterogeneity in investment advice. The odds for female financial analysts to issue optimistic recommendations are much lower than the odds for male analysts. However, an investor cannot profit from the observed gender differences....

This paper examines whether sell-side security analysts follow momentum or create momentum by themselves for recommending stocks. We employ an indirect method of testing the role of analysts by assigning projected recommendation scores for the neglected stocks to mitigate the so-called...

In this paper, we develop a model in which overconfident market participants and rational speculators trade against trend-chasers. We show that the growth and the burst of a financial bubble stem from positive feedback trading. However, the presence of overconfident traders and the risk aversion...

This paper addresses the question of the importance of analyst coverage for the long-run returns of IPO firms over the period from 1991 to 2010. In US IPOs, during the one- to five-year horizon, we find a significant long-run abnormal performance by orphans (IPOs without analyst coverage)...

In this paper we explore how the 2008 financial crisis impacted sell-side analysts' research as well as the market reactions to the publication of such research. Based on over 350,000 analyst reports from 2005 to 2010, we find that during the crisis analysts only disproportionately adapted their...