Option-implied betas are a promising alternative to historical beta estimators, because they are inherently forward-looking and can incorporate new information immediately and fully. Recently, different implied beta estimators have been developed in previous literature, but very little is known...

Cross-market deviations in equity put option prices and credit default swap spreads are temporal and revert to their usual level shortly after they occur, on average within about one week. The process of reversion involves predictable and economically significant changes also in the equity...

α (“Alpha”) has symbolic importance on the investments side of finance. That is, a fundamental pillar of modern finance theory is the risk-return relation, and traditionally alpha is taken to represent the degree of “mispricing” in asset returns. But, such an interpretation is not...

Prediction (or information) markets are markets where participants trade contracts whose payoff depends on unknown future events. Studying prediction markets allows to avoid many problems, which arise in some artificially designed behavioral experiments investigating collective decision making...

The aim of this paper is to determine whether forward-looking option-implied returns forecasts lead to better out-of-sample portfolio performance than conventional time series models. We consider a simple two-asset setting with a risk-free asset and the S&P 500 index the risky asset with monthly...

We examine whether financial analysts—sophisticated market participants—are subject to limited attention. We find that when analysts have another firm in their coverage portfolio announcing earnings on the same day as the sample firm (a “concurrent announcement”), they are less likely to...

Analysts cover portfolios of firms. Firms in these analyst portfolios are thus in principle subject to common (integrated) production of information. Nonetheless, this paper documents significant stock return and forecast revision predictability across firms with common analyst coverage. Prices...

This study reveals the information content of individual investors' risk-adjusted return expectations. Although individual investors overestimate the performance of their stock purchases on average, the cross-sectional variation in their risk-adjusted return expectations is predictive of future...

I investigate the relation between option prices and daily stock return serial correlation. I demonstrate that the variance ratio, calculated as the ratio of realized to implied stock return variance, has both a contemporaneous and predictive relation with stock return serial correlation. The...