This paper examines the trading patterns of retail investors following insider trading and the corresponding price impact. Retail investors follow the opportunistic purchases by insiders, but not their routine purchases. The abnormal retail downloads of the Form 4 filings from the EDGAR database...

We investigate the effect of the tone of news on investor stock price expectations and beliefs. In an experimental study we ask subjects to estimate a future stock price for twelve real listed companies. As additional information we provide them with historical stock prices and extracts from...

Using a large panel of U.S. accounts trades and positions, we show that retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and such contrarian trading contributes to post earnings announcement drift (PEAD) and momentum. Indeed, when we double-sort...

Modern Portfolio Theory, the Capital Asset Pricing Model, and the Efficient Market Hypothesis are cornerstone concepts in both academic and professional curricula. In spite of their long history and reputation, the CAPM and its extensions do not yield satisfactory empirical results. We argue...

In the traditional financial theory, the decision makers were assumed to be rational and stock markets were thought out to be the perfect markets i.e. whatever information is available in the market is fully reflected in share prices and nobody can earn extra profits just by having insider's...

A widespread concern in the investment industry is whether commonly used investment management fee arrangements encourage investment managers to act in their clients' interests. The value to managers of a one-period call performance fee is maximized by maximizing performance volatility. This is...

Individual investors trade excessively, sell winners too soon, and overweight stocks with lottery features and low expected returns. This paper proposes and models a financial innovation, called stock loan lotteries, that improves individual investor performance. An individual investor signs a...

Modern Portfolio Theory, the Capital Asset Pricing Model, and the Efficient Market Hypothesis are the cornerstone concepts in both academic and professional curricula. In spite of their long history and reputation, the CAPM and its extensions are not able to yield satisfactory empirical results....

Individual investors trade excessively, sell winners too soon, and overweight stocks with lottery features and low expected returns. This paper models a financial innovation to address these biases and improve individual investor performance. Individual investors pledge shares of stock to an...

Using a large panel of U.S. brokerage accounts trades and positions, we show that a large fraction of retail investors trade as contrarians after large earnings surprises, especially for loser stocks, and that such contrarian trading contributes to post earnings announcement drift (PEAD) and...