Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Řekové pomocí automatické diferenciace× | Batesův model× | Lokální volatilita (Dupire)× | Rizikově neutrální oceňování× | |
|---|---|---|---|---|
| Obor | Kvantitativní finance | Kvantitativní finance | Kvantitativní finance | Kvantitativní finance |
| Rodina≠ | Machine learning | Regression model | Regression model | Regression model |
| Rok vzniku≠ | 2008 | 1996 | 1994 | 1979 |
| Tvůrce≠ | Mike Giles, Iman Homescu | David S. Bates | Bruno Dupire | John Harrison and David Kreps |
| Typ≠ | Sensitivity Analysis | Equity/FX Model | Equity/FX Model | Fundamental Principle |
| Původní zdroj≠ | Giles, M. B. (2008). Adjoint code by automatic differentiation. Journal of Computational Finance, 12(1), 1-18. link ↗ | Bates, D. S. (1996). Jumps and stochastic volatility: Exchange rate processes implicit in Deutsche Mark options. Review of Financial Studies, 9(1), 69-107. DOI ↗ | Dupire, B. (1994). Pricing with a smile. Risk Magazine, 7(1), 18-20. link ↗ | Harrison, J. M., & Kreps, D. M. (1979). Martingales and arbitrage in multiperiod securities markets. Journal of Economic Theory, 20(3), 381-408. DOI ↗ |
| Další názvy≠ | AD Greeks, Algorithmic Differentiation, Autodiff | SVJ Model, Jump Diffusion | Deterministic Volatility Function, DVF | Risk-Neutral Measure, Q-Measure |
| Příbuzné≠ | 3 | 4 | 4 | 4 |
| Shrnutí≠ | Automatic differentiation (AD) is a computational technique for computing derivatives (Greeks) by differentiating the computer code that computes the option price. AD avoids manual derivation of formulas and finite-difference approximations, yielding exact sensitivities with machine precision. It has become essential for real-time risk management in modern trading systems. | The Bates model (1996) combines stochastic volatility and jump diffusion to capture both the volatility smile and the implied volatility skew observed in equity and currency option markets. It extends the Heston model by adding a Poisson jump component to returns, making it suitable for pricing options when sudden price moves are expected. | Dupire's local volatility model (1994) is a deterministic framework that extracts a term and strike-dependent volatility function from market option prices. Unlike constant volatility, local volatility perfectly fits the observed implied volatility smile and is implemented via finite difference methods for European and American option pricing. | Risk-neutral valuation (1979) is the fundamental principle that derivative prices equal the expected payoff discounted at the risk-free rate, computed under a risk-neutral probability measure (Q-measure). This principle, formalized by Harrison and Kreps, eliminates the need to estimate risk premia and is the foundation of modern derivatives pricing. |
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