Ivanov, Stoyu I.; Whitworth, Jeff; Zhang, Yi - In: The International Journal of Business and Finance Research 5 (2011) 4, pp. 35-44
We examine the option-implied volatility of the three most liquid ETFs (Diamonds, Spiders, and Cubes) and their respective tracking indices (Dow 30, S&P 500, and NASDAQ 100). We find that volatility smiles for ETF options are more pronounced than for index options, primarily because...