Abstract

In a financial market consisting of a nonrisky asset and a risky one, we study the minimal initial capital needed in order to superreplicate a given contingent claim under a gamma constraint. This is a constraint on the unbounded variation part of the hedging portfolio. We first consider the case in which the prices are given as general Markov diffusion processes and prove a verification theorem which characterizes the superreplication cost as the unique solution of a quasi-variational inequality. In the context of the Black--Scholes model (i.e., when volatility is constant), this theorem allows us to derive an explicit solution of the problem. These results are based on a new dynamic programming principle for general "stochastic target" problems.

MSC codes

  1. 35K55
  2. 49J20
  3. 60H30
  4. 90A09

Keywords

  1. stochastic control
  2. viscosity solutions
  3. stochastic analysis
  4. superreplication
  5. gamma constraint

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References

1.
F. Black and M. Scholes (1973), The pricing of options and corporate liabilities, J. Political Economy, 81, pp. 637–654.
2.
M. Broadie, J. Cvitanić, and M. Soner (1998), Optimal replication of contingent claims under portfolio constraints, Review of Financial Studies, 11, pp. 59–79.
3.
Michael Crandall, Hitoshi Ishii, Pierre‐Louis Lions, User’s guide to viscosity solutions of second order partial differential equations, Bull. Amer. Math. Soc. (N.S.), 27 (1992), 1–67
4.
Jakša Cvitanić, Ioannis Karatzas, Hedging contingent claims with constrained portfolios, Ann. Appl. Probab., 3 (1993), 652–681
5.
Jakša Cvitanić, Huyên Pham, Nizar Touzi, Super‐replication in stochastic volatility models under portfolio constraints, J. Appl. Probab., 36 (1999), 523–545
6.
Halil Soner, Controlled Markov processes, viscosity solutions and applications to mathematical finance, Lecture Notes in Math., Vol. 1660, Springer, Berlin, 1997, 134–185
7.
A. Friedman (1964), Partial Differential Equations of Parabolic Type, Prentice–Hall, Englewood Cliffs, NJ.
8.
E. Jouini and H. Kallal (1995), Arbitrage in securities markets with transaction costs, J. Econom. Theory, 5, pp. 197–232.
9.
Evgueni Gordienko, Enrique Lemus‐Rodríguez, Estimation of robustness for controlled diffusion processes, Stochastic Anal. Appl., 17 (1999), 421–441
10.
I. Karatzas and S. E. Shreve (1991), Brownian Motion and Stochastic Calculus, Springer‐Verlag, New York.
11.
Chris Barnett, Stanisław Goldstein, Ivan Wilde, Quantum stochastic integration and quantum stochastic differential equations, Math. Proc. Cambridge Philos. Soc., 116 (1994), 535–553
12.
H. Soner, S. Shreve, J. Cvitanić, There is no nontrivial hedging portfolio for option pricing with transaction costs, Ann. Appl. Probab., 5 (1995), 327–355
13.
H. M. Soner and N. Touzi (2000), Stochastic Target Problems, Dynamic Programming and Viscosity Solutions, preprint.

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Published In

cover image SIAM Journal on Control and Optimization
SIAM Journal on Control and Optimization
Pages: 73 - 96
ISSN (online): 1095-7138

History

Published online: 26 July 2006

MSC codes

  1. 35K55
  2. 49J20
  3. 60H30
  4. 90A09

Keywords

  1. stochastic control
  2. viscosity solutions
  3. stochastic analysis
  4. superreplication
  5. gamma constraint

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