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Quantitative Finance · Glosario

¿Qué es Static arbitrage, butterfly and calendar arbitrage?

También llamado: static arbitrage · butterfly arbitrage · calendar arbitrage

Definition 7.4 Derivatives and Volatility · Capítulo 7 — Implied Volatility and Its Surface

A static arbitrage in a set of option quotes is a portfolio of the options, the forward and bonds, bought once and held to the expiries, that costs nothing and pays a non-negative amount in every state, positive in some. A butterfly arbitrage is one inside an expiry: call prices that are not convex in the strike, so that a butterfly has a negative price. A calendar arbitrage is one across expiries: a longer-dated option cheaper than the shorter-dated one at the same forward-moneyness.

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