decomposing realized volatility in its continuous and discontinuous jump component. First, we analyze the relation between … volatility and trading activity. Coherent with existing studies we find that the driving factor of the relation between … Data ; Realized Volatility ; Price Jump ; Trading Activity ; Urgent Market Message …

In a tractable stochastic volatility model, we identify the price of the smile as the price of the unspanned risks … traded in SPX option markets. The price of the smile reflects two persistent volatility and skewness risks, which imply a …-form and structural models of stochastic volatility …

realized volatility and its continuous and jump components. Considering buyer-initiated and seller-initiated trades and … investigate whether buyer and seller initiated trades as two factors of realized volatility, we investigate whether they have an … asymmetric effect on realized volatility. The stocks in the ASX50 sampled over the period January 1996 to April 2010 reveal that …

This paper examines the cross section of options implied volatility and corporate bond returns. We document a strong … predictive ability of corporate bond returns using changes in call and put options implied volatility. Specifically, a strategy … of buying (selling) the portfolio with lowest (highest) changes in options implied volatility yields an average monthly …

in volatility. The economic rationale for the effect is still controversial. The competing explanations have different … implications for the origin of the relationship: Are volatility changes induced by index movements, or inversely, does volatility … implied volatility and index return in Germany based on Granger causality tests and impulse-response functions. Our dataset …

This paper documents law of one price violations in equity volatility markets. While tightly linked by no …