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Spectral analysis of high-frequency finance

Author(s)
Zhang, Yuqing, M. Eng Massachusetts Institute of Technology
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Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.
Advisor
Andrew W. Lo.
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M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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Abstract
Popular across a wide range of fields, spectral analysis is a powerful technique for studying the behavior of complex systems. It decomposes a signal into many different periodic components, each associated with a specific cycle length. We argue that the application of spectral analysis to finance leads to natural interpretations in terms of horizon-specific behaviors. A spectral framework provides a few main advantages over conventional time domain approaches to financial analysis: (1) improved computational efficiency for the evaluation of behaviors across a spectrum of time horizons, (2) reduced vulnerability to aliasing effects, and (3) more convenient representations of inherently cyclic dynamics, e.g. business cycles, credit cycles, liquidity cycles, etc. In this paper we first present a set of spectral techniques, including a frequency-specific correlation and a frequency decomposition of trading strategy profits. Then, we demonstrate the application of these techniques in an empirical analysis of high-frequency dynamics over the years 1995-2014. Our results consist of three parts: (1) an analysis of individual stock returns and various portfolio returns, (2) an analysis of contrarian trading strategies and the introduction of a novel technique for managing frequency exposures of general strategies, and (3) a case analysis of recent market shocks. The great extent to which our empirical results align with financial intuition attests to the practicality of spectral approaches to financial analysis. It demonstrates that many real phenomena can be captured through a spectral lens.
Description
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.
 
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
 
Cataloged from student-submitted PDF version of thesis.
 
Includes bibliographical references (pages 73-76).
 
Date issued
2016
URI
http://hdl.handle.net/1721.1/106399
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Publisher
Massachusetts Institute of Technology
Keywords
Electrical Engineering and Computer Science.

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