Journal of Computational Finance

Risk.net

PDE methods for maximum drawdown

Libor Pospisil, Jan Vecer

ABSTRACT

Maximum drawdown is a risk measure that plays an important role in portfolio management. In this paper, we address the question of computing the expected value of the maximum drawdown using a partial differential equation approach. First, we derive a two-dimensional convection diffusion pricing equation for the maximum drawdown in the Black–Scholes framework. Due to the properties of the maximum drawdown, this equation has a non-standard boundary condition. We apply an alternating direction implicit method to solve the equation numerically. We also discuss stability and convergence of the numerical method.

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