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Pricing the exotic: Path-dependent American options with stochastic barriers

Author

Listed:
  • Alejandro Rojas-Bernal
  • Mauricio Villamizar-Villegas

Abstract

We develop a novel pricing strategy that approximates the value of an American option with exotic features through a portfolio of European options with different maturities. Among our findings, we show that: (i) our model is numerically robust in pricing plain vanilla American options; (ii) the model matches observed bids and premiums of multidimensional options that integrate Ratchet, Asian, and Barrier characteristics; and (iii) our closed-form approximation allows for an analytical solution of the option’s greeks, which characterize the sensitivity to various risk factors. Finally, we highlight that our estimation requires less than 1% of the computational time compared to other standard methods, such as Monte Carlo simulations. **** RESUMEN: En este documento proponemos una nueva metodología de valoración de opciones americanas con características exóticas mediante la valoración de un portafolio de opciones europeas con diverso vencimiento. Nuestros resultados muestran que: (i) la met odología es numéricamente robusta en la valoración de opciones americanas simples; (ii) las valoraciones del modelo corresponden a las ofertas y primas observadas en las subastas de un conjunto de opciones multidimensionales que integran elementos de opciones trinquete, asiáticas y barrera; y (iii) la forma cerrada de nuestra aproximación permite la derivación de una solución analítica para las griegas de la opción que caracterizan la exposición a diversos factores de riesgo. Finalmente, resaltamos que nuestro modelo requiere menos del 1% del tiempo de ejecución computacional comparado a otros métodos estándar como simulaciones de Monte Carlo.

Suggested Citation

  • Alejandro Rojas-Bernal & Mauricio Villamizar-Villegas, 2021. "Pricing the exotic: Path-dependent American options with stochastic barriers," Borradores de Economia 1156, Banco de la Republica de Colombia.
  • Handle: RePEc:bdr:borrec:1156
    DOI: https://doi.org/10.32468/be.1156
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    Cited by:

    1. Freddy A. Pinzón-Puerto & Mauricio Villamizar-Villegas, 2023. "Do Actions Speak Louder than Words? A Foreign Exchange Intervention Analysis," Borradores de Economia 1223, Banco de la Republica de Colombia.

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    More about this item

    Keywords

    Option pricing; exotic currency options; ratchet options; Asian options; American options; Barrier options; Weighted Time Value methodology; Least Squares Monte Carlo; valoración de opciones de divisas; opciones trinquete; opciones asiáticas; opciones barrera; ponderación del valor temporal; mínimos cuadrados de Monte Carlo;
    All these keywords.

    JEL classification:

    • C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing

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