We present a new method to measure the intraday relationship between movements of implied volatility smiles and stock returns. It is based on an enhanced smile regression model which captures patterns in the intraday data which have not yet been reported in the literature. Using transaction data...

In the three-factor model of Fama and French (1993), portfolio returns are explained by the factors Small Minus Big (SMB) and High Minus Low (HML) which capture returns related to firm capitalization (size) and the book-to-market ratio (B/M). In the standard approach of the model, both the test...

In the three-factor model of Fama and French (1993), portfolio returns are explained by the factors Small Minus Big (SMB) and High Minus Low (HML) which capture returns related to firm capitalization (size) and the book-to-market ratio (B/M). In the standard approach of the model, both the test...

We present a new method to measure the intraday relationship between movements of implied volatility smiles and stock returns. It is based on an enhanced smile regression model which captures patterns in the intraday data which have not yet been reported in the literature. Using transaction data...

In the three-factor model of Fama and French (1993), portfolio returns are explained by the factors Small Minus Big (SMB and High Minus Low (HML) which capture returns related to firm capitalization (size) and the book-to-market ratio (B/M). In the standard approach of the model, both the test...

The Data Colada blog post 98 presents evidence that the data in the paper in question were fabricated in two ways: the miles driven were generated as random numbers from a uniform distribution between 0 and 50,000, and the initial datasets in font ‘Calibri’ were duplicated in font...

We present a new method to measure the intraday relationship between movements of implied volatility smiles and stock index returns. It exploits a specific characteristic of the smile profile in high-frequency data. Using transaction data for EuroStoxx 50 options from 2000 to 2011 and DAX...

The market for structured products in Germany and Switzerland experienced a decade of rapid growth before the financial crisis. When Lehman bank failed, however, it became apparent that many private investors had not been aware of the risks involved in these instruments. There is evidence that...