The Volatility Smile

The Volatility Smile

The Black-Scholes-Merton option model was the greatest innovation of 20th century finance, and remains the most widely applied theory in all of finance. Despite this success, the model is fundamentally at odds with the observed behavior of option markets: a graph of implied volatilities against strike will typically display a curve or skew, which practitioners refer to as the smile, and which the model cannot explain. Option valuation is not a solved problem, and the past forty years have witnessed an abundance of new models that try to reconcile theory with markets.

The Volatility Smile presents a unified treatment of the Black-Scholes-Merton model and the more advanced models that have replaced it. It is also a book about the principles of financial valuation and how to apply them. Celebrated author and quant EmanuelDerman and Michael B. Miller explain not just the mathematics but the ideas behind the models. By examining the foundations, the implementation, and the pros and cons of various models, and by carefully exploring their derivations and their assumptions, readers will learn not only how to handle the volatility smile but how to evaluate and build their own financial models.

Topics covered include:

• The principles of valuation
• Static and dynamic replication
• The Black-Scholes-Merton model
• Hedging strategies
• Transaction costs
• The behavior of the volatility smile
• Implied distributions
• Local volatility models
• Stochastic volatility models
• Jump-diffusion models

Avainsanat:

The Volatility Smile: An Introduction for Students and Practitioners, The Volatility Smile, Emanuel Derman, Michael B. Miller, Prisma Capital Partners, options pricing, volatility pricing, financial engineering, financial modeling, mathematical modeling, Black-Scholes model, Black-Scholes limitations, financial model limitations, Black-Scholes-Merton model, alternative volatility models, financial model testing, options models, financial model proofs, financial model evaluation, financial model validity, Black-Scholes-Merton extensions, practical financial modeling, building your own volatility model, volatility modeling, options pricing formulas, advanced trading, quantitative finance