We propose a new, price-based measure of information risk called abnormal idiosyncratic volatility (AIV) that captures information asymmetry faced by uninformed investors. AIV is the idiosyncratic volatility prior to information events in excess of normal levels. Using earnings announcements as...

We investigate the effect of information uncertainty on the macroeconomicannouncement premium of the market return in addition to theeffect of fundamentals uncertainty. We show that the premium issignificant only during low information uncertainty periods, opposite to thecase of fundamentals...

We present an analytical framework for the forward-looking measurement of extreme market risk. In contrast to standard techniques relying on past return data, we propose to extract Value-at-Risk and Expected Shortfall under the physical measure from current option prices. Our empirical evidence...