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Quantitative Finance · Glosario

¿Qué es Quanto adjustment?

Definition 17.14 Derivatives and Volatility · Capítulo 17 — Multi-Asset Options

The quanto adjustment is the change in the asset’s drift when it is priced under the domestic measure with a fixed conversion: −ρσSσX-\rho\sigma_S\sigma_X, with σX\sigma_X the volatility of the exchange rate (domestic per foreign unit) and ρ\rho its correlation with the asset. The quanto forward is Fe−ρσSσXTFe^{-\rho\sigma_S\sigma_XT}.

Ejemplos

Example 17.15 (An index forward paid in another currency)

A foreign index with a forward of 100, volatility 20%, paid one year out at one domestic unit per point. With an exchange-rate volatility of 10% and correlations of −0.6-0.6, −0.3-0.3, 0.30.3 and 0.60.6, the quanto forward is 101.21, 100.60, 99.40 and 98.81. A simulation of 200 000 paths under the domestic measure with the adjusted drift agrees to 0.005 (Figure 17.4). At a correlation of −0.3-0.3 the at-the-money quanto call is worth 8.29 against 7.97 for the same call settled in the foreign currency.

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