2015-09-28
The time-dependent FX-SABR model: Efficient calibration based on effective parameters
Publication
Publication
International Journal of Theoretical and Applied Finance , Volume 18 - Issue 6 p. 1550042:1- 1550042:38
We present a framework for efficient calibration of the time-dependent SABR model
(Fern´andez et al. (2013) Mathematics and Computers in Simulation 94, 55–75; Hagan
et al. (2002) Wilmott Magazine 84–108; Osajima (2007) Available at SSRN 965265.)
in an foreign exchange (FX) context. In a similar fashion as in (Piterbarg (2005) Risk
18 (5), 71–75) we derive effective parameters, which yield an accurate and efficient
calibration. On top of the calibrated FX-SABR model, we add a non-parametric local
volatility component, which naturally compensates for possible calibration errors. By
means of Monte Carlo pricing experiments, we show that the time-dependent FX-SABR
model enables an accurate and consistent pricing of barrier options and outperforms
the constant-parameter SABR model and the traditional local volatility model (Derman
& Kani (1998) International Journal of Theoretical and Applied Finance 1 (1), 61–
110; Dupire (1994) Risk 7 (1), 18–20). We also discuss the role of the local volatility
component in pricing barrier options.
Additional Metadata | |
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, , , , , , | |
World Scientific | |
doi.org/10.1142/S0219024915500429 | |
International Journal of Theoretical and Applied Finance | |
Organisation | Scientific Computing |
van der Stoep, A., Grzelak, L. A., & Oosterlee, K. (2015). The time-dependent FX-SABR model: Efficient calibration based on effective parameters. International Journal of Theoretical and Applied Finance, 18(6), 1550042:1–1550042:38. doi:10.1142/S0219024915500429 |