Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Orthogonal Expansions for VIX Options Under Affine Jump Diffusions. / Barletta, Andrea; Nicolato, Elisa.
In: Quantitative Finance, Vol. 18, No. 6, 2018, p. 951-967.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - Orthogonal Expansions for VIX Options Under Affine Jump Diffusions
AU - Barletta, Andrea
AU - Nicolato, Elisa
PY - 2018
Y1 - 2018
N2 - In this work we derive new closed–form pricing formulas for VIX options in the jump-diffusion SVJJ model proposed by Duffie et al. (2000). Our approach is based on the classic methodology of approximating a density function with an orthogonal expansion of polynomials weighted by a kernel. Orthogonal expansions based on the Gaussian distribution, such as Edgeworth or Gram–Charlier expansions, have been successfully employed by a number of authors in the context of equity options. However, these expansions are not quite suitable for volatility or variance densities as they inherently assign positive mass to the negative real line. Here we approximate option prices via expansions that instead are based on kernels defined on the positive real line. Specifically, we consider a flexible family of distributions, which generalizes the gamma kernel associated with the classic Laguerre expansions. The method can be employed whenever the moments of the underlying variance distribution are known. It provides fast and accurate price computations, and therefore it represents a valid and possibly more robust alternative to pricing techniques based on Fourier transform inversions.
AB - In this work we derive new closed–form pricing formulas for VIX options in the jump-diffusion SVJJ model proposed by Duffie et al. (2000). Our approach is based on the classic methodology of approximating a density function with an orthogonal expansion of polynomials weighted by a kernel. Orthogonal expansions based on the Gaussian distribution, such as Edgeworth or Gram–Charlier expansions, have been successfully employed by a number of authors in the context of equity options. However, these expansions are not quite suitable for volatility or variance densities as they inherently assign positive mass to the negative real line. Here we approximate option prices via expansions that instead are based on kernels defined on the positive real line. Specifically, we consider a flexible family of distributions, which generalizes the gamma kernel associated with the classic Laguerre expansions. The method can be employed whenever the moments of the underlying variance distribution are known. It provides fast and accurate price computations, and therefore it represents a valid and possibly more robust alternative to pricing techniques based on Fourier transform inversions.
KW - APPROXIMATIONS
KW - Affine jump diffusion
KW - IMPACT
KW - Laguerre expansions
KW - MODELS
KW - Orthogonal polynomials
KW - PRICES
KW - RISK
KW - STOCHASTIC VOLATILITY
KW - VALUATION
KW - VARIANCE
KW - VIX options
UR - http://www.scopus.com/inward/record.url?scp=85030718734&partnerID=8YFLogxK
U2 - 10.1080/14697688.2017.1371322
DO - 10.1080/14697688.2017.1371322
M3 - Journal article
VL - 18
SP - 951
EP - 967
JO - Quantitative Finance
JF - Quantitative Finance
SN - 1469-7688
IS - 6
ER -