One of the tools traders have found to cope with the shortcomings of the Black and Scholes models has been to allow for non-flat volatilities, which means that the implied volatility of an option does not depend merely on the historical volatility in the underlying, but also on the strike Read more…
“Fear tends to manifest itself much more quickly than greed, so volatile markets tend to be on the downside. In up markets, volatility tends to gradually decline.” Philip Roth Introduction As options and other products whose price depends on volatility have become widespread, studying its behaviour is now a key Read more…
The recent OPEC’s meeting amplified the downward trend in Oil price as the counsel decided not to cut Oil supply. The cartel decided – tough not unanimously – to leave the current OPEC supply target at 30 million barrels per day. The target was actually not respected for the last Read more…
Given the turbulence in the implied volatility observed in the aftermath of Apple’s Q1 results, we adopt a sophisticated quantitative model to better understand its dynamics. What we have observed so far in the option market is a large decrease in the 1-month implied volatility, and a sustained level of Read more…