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which idiosyncratic volatility is allowed to be priced. We model the index dynamics' physical distribution as a mean …-reverting stochastic volatility process as in Heston (1993), and the equity returns as single-factor models with stochastic idiosyncratic … volatility terms. We derive theoretically the underlying assets' risk-neutral distributions, and we estimate the parameters of …
Persistent link: https://www.econbiz.de/10013056816
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 …
Persistent link: https://www.econbiz.de/10013039862
volatility. Additionally, we take advantage of the 2015 change in CME's daily settlement methodology for agricultural commodities …
Persistent link: https://www.econbiz.de/10013289934
In this paper we investigate the asymptotics of forward-start options and the forward implied volatility smile in the …
Persistent link: https://www.econbiz.de/10013035837
We prove here a general closed-form expansion formula for forward-start options and the forward implied volatility … smile in a large class of models, including the Heston stochastic volatility and time-changed exponential Levy models … particular) many results for the spot implied volatility smile.In passing we (i) show that the forward-start date has to be …
Persistent link: https://www.econbiz.de/10013036196
We propose a novel factor model for option returns. Option exposures are estimated nonparametrically and factor risk premia can vary nonlinearly with states. The model is estimated using regressions, with minimal assumptions on factor and option return dynamics. Using index options, we...
Persistent link: https://www.econbiz.de/10013213854
We work in the Uncertain Volatility Model setting of Avellaneda, Levy, Paras [1] and Lyons [10] (cf. also [11]). We … first look at European options in a market with no interest rate and focus on theextreme case where the volatility has a … volatility given by the lower bound) of an option with payoff the smallest concave function above the initial payoff. We next …
Persistent link: https://www.econbiz.de/10013148367
Time changes of Brownian motion impose restrictive jump structures in the motion of asset prices. Quadratic variations also depart from time changes. Joint Laplace Fourier transforms for quadratic variation and the stock are developed. They are used to study the multiple of the cap strike over...
Persistent link: https://www.econbiz.de/10013245486
Variance premium is studied under a discrete-time consumption-based equilibrium model, with two stochastic volatility …. The implication of the model is that variance premium term structure contains information about two underlying volatility …
Persistent link: https://www.econbiz.de/10013079942
Volatility trading is in vogue. Launched in January 2009, exchange-traded products (ETPs) linked to the CBOE Market … Volatility Index (VIX) have enamored no small number of traders judging by the billions of dollars invested in these new products …
Persistent link: https://www.econbiz.de/10013063985