Talk:Volatility smile

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Explanation of vol smile[edit]

Should the article include some explanation of why the volatility smile is observed, e.g. Black-Scholes normality assumption, fat tail events, etc? Finnancier 08:27, 26 August 2007 (UTC)[reply]

Restructure needed[edit]

It is inappropriate to have "volatility surface" diverted to this article, when the former is a much larger subject. Would it be preferred to have two articles, or to have a single article called "volatility surface", with a subsection "volatility smile"?

Also the article makes an unwarranted generalisation at the start. It is an easily observed empirical fact that there is not always a volatility smile in equity index markets. The implied volatility curve at a particular moment in time can be monotone even though there is a kink in the slope at the money. Elroch (talk) 06:14, 21 June 2009 (UTC)[reply]

Is "smile" derived from curve shape?[edit]

If the term smile is used because the curve of this concept resembles a smile, i.e. a downward and then upward sloping curve, then I think it should be made explicit in the beginning of the article. I think it adds helpful definitional context for the novice reader. At first I thought the article was a misspelling of "simile". 24.193.42.103 (talk) 22:57, 8 November 2009 (UTC)[reply]

Done, 3 years late.'''SPECIFICO''' (talk) 22:23, 10 November 2012 (UTC)[reply]

Deeply out-of-the-money[edit]

In the top section: "...than what is suggested by standard option pricing models. These options are said to be deep out-of-the-money." Not only do deeply out-of-the-money options command higher prices, but also deeply in-the-money options, as the figure clearly shows. 71.139.161.9 (talk) 04:40, 24 September 2014 (UTC)[reply]

true, but deeply in the money options aren't all that interesting. Basically buying the underlier but with a bid-ask spread typically many multiples higher. Ronnotel (talk) 14:29, 24 September 2014 (UTC)[reply]