The traditional CAPM beta is almost exclusively calculated over a return period that spans a window length of 60-months, at one-month return frequencies. It is one of the most utilized models in the asset management industry to assess systematic risk. Yet there is limited evidence to suggest...

We examine the sentiment levels of individual investors relative to subsequent short-term market returns for 1992-2010. We find that sentiment, proxied by percentage of investors who are “bullish” on the market, is significantly negatively related to the subsequent three- and six-month...