Is There a Magnet Effect of Rule-Based Circuit Breakers in Times of High-Frequency Trading?

2018 ◽  
Author(s):  
Benjamin Clapham
Author(s):  
Steffen Kern ◽  
Giuseppe Loiacono

This chapter reviews the fundamental workings of the EU regulatory framework and its implications for high frequency trading (HFT) and the latest findings on the market realities in the EU. Over the last decade, securities trading landscapes have undergone significant change, with the emergence of HFT being one of the most important developments in this context. At the same time, the EU has made landmark legislative advances with the aim of increasing investor protection, market order, and financial stability, and of containing risks in those areas. As the new MiFID2 legal framework takes effect, a wealth of new data and evidence will become available in coming years that will improve understanding of HFT patterns, the effectiveness of circuit breakers, and their optimal calibration.


Author(s):  
Yacine Aït-Sahalia ◽  
Jean Jacod

High-frequency trading is an algorithm-based computerized trading practice that allows firms to trade stocks in milliseconds. Over the last fifteen years, the use of statistical and econometric methods for analyzing high-frequency financial data has grown exponentially. This growth has been driven by the increasing availability of such data, the technological advancements that make high-frequency trading strategies possible, and the need of practitioners to analyze these data. This comprehensive book introduces readers to these emerging methods and tools of analysis. The book covers the mathematical foundations of stochastic processes, describes the primary characteristics of high-frequency financial data, and presents the asymptotic concepts that their analysis relies on. It also deals with estimation of the volatility portion of the model, including methods that are robust to market microstructure noise, and address estimation and testing questions involving the jump part of the model. As the book demonstrates, the practical importance and relevance of jumps in financial data are universally recognized, but only recently have econometric methods become available to rigorously analyze jump processes. The book approaches high-frequency econometrics with a distinct focus on the financial side of matters while maintaining technical rigor, which makes this book invaluable to researchers and practitioners alike.


Author(s):  
Peter Gomber ◽  
Björn Arndt ◽  
Marco Lutat ◽  
Tim Elko Uhle

Author(s):  
Jonathan Brogaard ◽  
Terrence Hendershott ◽  
Ryan Riordan

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