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By extending the GARCH option pricing model of Duan (1995) to more flexible volatility estimation it is shown that the … pronounced leverage effect, simulated threshold GARCH option prices are substantially closer to observed market prices than the …
Persistent link: https://www.econbiz.de/10009659059
A primary goal in modelling the dynamics of implied volatility surfaces (IVS) aims at reducing complexity. For this purpose one fits the IVS each day and applies a principal component analysis using a functional norm. This approach, however, neglects the degenerated string structure of the...
Persistent link: https://www.econbiz.de/10009663844
: Whether in risk management, portfolio hedging, or option pricing, we need to have a precise notion of the market's expectation … solved for the constant volatility parameter a using observed option prices. This is a more natural approach as the option … used as an indicator for market expectations over the remaining lifetime of the option. It is well known that the …
Persistent link: https://www.econbiz.de/10009615424
linear AR(l) conditional mean, one may ask how this predictability affects option prices. We investigate the dependence of … option prices on autoregressive dynamics under stylized facts of stock returns, i.e., conditional heteroskedasticity … suggest that a non-zero autoregression coefficient tends to increase the deviation of option prices from Black & Scholes …
Persistent link: https://www.econbiz.de/10009580460
Based on daily VDAX data this paper analyzes the factors governing the movements of implied volatilities of options on the German stock index DAX. Using Principal Components Analysis over the sample period from 1996 to 1997, we derive common factors representing "shift" and "curvature" of the...
Persistent link: https://www.econbiz.de/10009612026
-gamma neutral, vega sensitive option portfolios. -- Common Principal Component Analysis ; Implied Volatility Surface ; Principal …
Persistent link: https://www.econbiz.de/10009613597
Using option prices the expectations of the market participants concerning the underlying asset can be extracted as …
Persistent link: https://www.econbiz.de/10009614294
Persistent link: https://www.econbiz.de/10001919426