Pricing Formulae for Foreign Exchange Options.pdf
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Pricing Formulae for Foreign Exchange Options
Andreas Weber and Uwe Wystup
MathFinance AG
Waldems, GermanyAbstract
We provide closed form solutions for the value of selected rst generation exotic
options in the Black-Scholes model as used frequently to quote the
theoretical value(TV)
. These formulae allow a fast computation; all involve the normal density andcumulative distribution function.
Key words
. barrier options, digital options, touch options, lookback options, forward startoptions, compound options, instalment options, pricing formulae for rst generation exotic
options, Black-Scholes modelContents
1 Pricing Formulae for Foreign Exchange Options
21.1 General Model Assumptions and Abbreviations
. . . . . . . . . . . . . . . . . 21.2 Barrier Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3 Digital and Touch Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3.1 Digital Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3.2 One-Touch Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3.3 Double-No-Touch Options
. . . . . . . . . . . . . . . . . . . . . . . . 91.4 Lookback Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.4.1 Valuation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.4.2 Discrete Sampling
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 141.5 Forward Start Options
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141.5.1 Product De nition
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 141.5.2 The Value of Forward Start Options
. . . . . . . . . . . . . . . . . . . 151.5.3 Example
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.6 Compound and Instalment Options
. . . . . . . . . . . . . . . . . . . . . . . 161.6.1 Valuation in the Black-Scholes Model
. . . . . . . . . . . . . . . . . . 161.6.2 The Curnow and Dunnett Integral Reduction Technique
. . . . . . . . 171.6.3 A Closed Form Solution for the Value of an Instalment Option
. . . . . 18

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