We develop a measure of how information events impact investors' perceptions of risk that is broadly applicable and simple to implement. We derive this measure from an option-pricing model where investors anticipate an announcement that simultaneously conveys information on the announcer's...

Straddles on individual stocks generally earn significantly negative returns. However, average at the money straddles from three days before an earnings announcement to the announcement date yield a highly significant 3.34% return. The positive returns on straddles indicate that investors...

We show that 71% of the earnings announcement premium takes place before, rather than after, earning releases. We attribute this pattern to uncertainty resolution before earnings announcement, and provide compelling evidence that high uncertainty stocks experience more uncertainty resolution and...

We study whether bond markets efficiently incorporate information about risk. Our results suggest that bond investors underreact to risk information embedded in earnings announcements. A one-standard deviation increase in unexpected risk is associated with a three-day abnormal bond return about...

Two ex-ante variables are introduced to characterize the analysts' biased behavior, namely the analysts' disagreement and self-selection in analysts' earnings forecasts. The study investigates the impact of the analysts' disagreement and self-selection on the stock returns. A theoretical...

We argue the earnings announcement premium is a measure of firm-specific uncertainty aversion. Our stylized model shows earnings announcements, as pure news events, are priced only if investors are uncertainty averse; further, the earnings announcement return is negatively correlated to future...