Sector classification through non-Gaussian similarity
Standard sector classification frameworks present drawbacks that might hinder portfolio manager. This paper introduces a new non-parametric approach to equity classification. Returns are decomposed into their fundamental drivers through Independent Component Analysis (ICA). Stocks are then classified according to the relative importance of identified fundamental drivers for their returns. A method is developed permitting the quantification of these dependencies, using a similarity index. Hierarchical clustering allows for grouping the stocks into new classes. The resulting classes are compared with those from the 2-digit GICS system for U.S. blue chip companies. It is shown that specific relations between stocks are not captured by the GICS framework. The method is applied on two different samples and tested for robustness.
|Date of creation:||Oct 2008|
|Publication status:||Published by: Université Libre de Bruxelles, Solvay Business School, Centre Emile Bernheim (CEB)|
|Contact details of provider:|| Postal: CP114/03, 42 avenue F.D. Roosevelt, 1050 Bruxelles|
Phone: +32 (0)2 650.48.64
Fax: +32 (0)2 650.41.88
Web page: http://difusion.ulb.ac.be
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Roll, Richard, 1992. " Industrial Structure and the Comparative Behavior of International Stock Market Indices," Journal of Finance, American Finance Association, vol. 47(1), pages 3-41, March.
- Michel Beine & Pierre-Yves Preumont & Ariane Szafarz, 2006. "Sector diversification during crises: a European perspective," DULBEA Working Papers 06-07.RS, ULB -- Universite Libre de Bruxelles.
- Farrell, James L, Jr, 1974. "Analyzing Covariation of Returns to Determine Homogeneous Stock Groupings," The Journal of Business, University of Chicago Press, vol. 47(2), pages 186-207, April.
- Brown, Stephen J. & Goetzmann, William N., 1997.
"Mutual fund styles,"
Journal of Financial Economics,
Elsevier, vol. 43(3), pages 373-399, March.
- repec:dau:papers:123456789/7748 is not listed on IDEAS
- Kole, Erik & Koedijk, Kees & Verbeek, Marno, 2007.
"Selecting copulas for risk management,"
Journal of Banking & Finance,
Elsevier, vol. 31(8), pages 2405-2423, August.
- Andrew J. Patton, 2004.
"On the Out-of-Sample Importance of Skewness and Asymmetric Dependence for Asset Allocation,"
Journal of Financial Econometrics,
Society for Financial Econometrics, vol. 2(1), pages 130-168.
- Andrew J. Patton, 2002. "On the out-of-sample importance of skewness and asymetric dependence for asset allocation," LSE Research Online Documents on Economics 24951, London School of Economics and Political Science, LSE Library.
- Fama, Eugene F. & French, Kenneth R., 1997. "Industry costs of equity," Journal of Financial Economics, Elsevier, vol. 43(2), pages 153-193, February.
- Thierry Vessereau, 2000. "Factor Analysis and Independent Component Analysis in Presence of High Idiosyncratic Risks," CIRANO Working Papers 2000s-46, CIRANO.
- Marie Briere & Ariane Szafarz, 2007.
"Crisis-Robust Bond Portfolios,"
Working Papers CEB
07-030.RS, ULB -- Universite Libre de Bruxelles.
- Elton, Edwin J. & Gruber, Martin J., 1970. "Homogeneous Groups and the Testing of Economic Hypotheses," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 4(05), pages 581-602, January.
- Peiro, Amado, 1999. "Skewness in financial returns," Journal of Banking & Finance, Elsevier, vol. 23(6), pages 847-862, June.
When requesting a correction, please mention this item's handle: RePEc:sol:wpaper:08-032. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Benoit Pauwels)
If references are entirely missing, you can add them using this form.