Business Commons^™

New Factor Structure Models And Idiosyncratic Volatility, Ossama Elhadary

Dissertations, Theses, and Capstone Projects

In this dissertation, I propose new factor structures that are based on the Fama-French style factors but include additional locations like the industry groups and the exchanges where the stocks are traded. I show that the stock returns are clustered around the industry groups and the exchanges. Idiosyncratic volatility calculated using the new factor structure models tend to be smaller than those calculated using the traditional Fama-French model. By sorting portfolios using the idiosyncratic volatility computed using the new factor models, a trader can gain larger profits compared to sorting the portfolio using the traditionally calculated idiosyncratic volatility.

Studies In Volatility, Nazli Sila Alan

Dissertations, Theses, and Capstone Projects

This dissertation consists of five chapters that focus on the price discovery role of equity markets and examine the evolution of intraday stock price volatility as a key measure of market quality. Using six differentiated measures of intraday volatility (that mostly focus on the opening half-hour of trading), all common stocks listed at three stock exchanges with varying levels of fragmentation are analyzed: NYSE and NASDAQ stocks over the period 1993-2012, and Istanbul Stock Exchange (ISE) stocks over the period 2000-2011.

The results on the evolution of intraday volatility presented in Chapters 2 and 3 indicate the following: In 1993, …