volatility. Many exotics are priced in a local volatility framework. Pricing under local volatility has become a field of … that assumes a constant volatility. The Johannesburg Stock Exchange (JSE) lists exotic options on its Can-Do platform. Most … exotic options listed on the JSE’s derivative exchanges are valued by local volatility models. These models needs a local …

This paper develops a test that helps assess whether the term structure of option implied volatility is constant across … "volatility smile" and an additive quadratic time effect is a statistically adequate depiction of the implied volatility data for … most years. The constancy of implied volatility term structure, in turn, implies that option traders shall feel confident …

This paper proposes the sample path generation method for the stochastic volatility version of the CGMY process. We …

research on this hypothesis to open-market share repurchases. Empirical tests showed that the implied volatility spread was not … implied volatility spread and subsequent stock return volatility around open-market share repurchase events. We concluded that … option traders have private information on the volatility of stock returns and superior information processing ability that …

one-month variance swap rate, i.e., the CBOE Volatility Index (VIX) accurately. Our research suggests that one should use …

98% . The relative importance of using the symmetric method increases with option maturity and with asset volatility …

stochastic volatility and jumps are present. …