Equity portfolio diversification with high frequency data
Investors wishing to achieve a particular level of diversification may be misled on how many stocks to hold in a portfolio by assessing the portfolio risk at different data frequencies. High frequency intradaily data provide better estimates of volatility, which translate to more accurate assessment of portfolio risk. Using 5-minute, daily and weekly data on S&P500 constituents for the period from 2003 to 2011 we ?nd that for an average investor wishing to diversify away 85% (90%) of the risk, equally weighted portfolios of 7 (10) stocks will suffice, irrespective of the data frequency used or the time period considered. However, to assure investors of a desired level of diversification 90% of the time, instead of on average, using low frequency data results in an exaggerated number of stocks in a portfolio when compared with the recommendation based on 5-minute data. This difference is magnified during periods when financial markets are in distress, as much as doubling during the 2007-2009 financial crisis
|Date of creation:||01 Nov 2013|
|Date of revision:||01 Nov 2013|
|Publication status:||Published by the University of Tasmania. Discussion paper series N 2013-19|
|Contact details of provider:|| Postal: Private Bag 85, Hobart, Tasmania 7001|
Phone: +61 3 6226 7672
Fax: +61 3 6226 7587
Web page: http://www.utas.edu.au/business-and-economics
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.:
- P. Silvapulle & C. W. J. Granger, 2001. "Large returns, conditional correlation and portfolio diversification: a value-at-risk approach," Quantitative Finance, Taylor & Francis Journals, vol. 1(5), pages 542-551.
- Jennings, Edward H., 1971. "An Empirical Analysis of Some Aspects of Common Stock Diversification," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 6(02), pages 797-813, March.
- Kristin J. Forbes & Roberto Rigobon, 2002.
"No Contagion, Only Interdependence: Measuring Stock Market Comovements,"
Journal of Finance,
American Finance Association, vol. 57(5), pages 2223-2261, October.
- Kristin Forbes & Roberto Rigobon, 1999. "No Contagion, Only Interdependence: Measuring Stock Market Co-movements," NBER Working Papers 7267, National Bureau of Economic Research, Inc.
- Klemkosky, Robert C & Martin, John D, 1975. "The Effect of Market Risk on Portfolio Diversification," Journal of Finance, American Finance Association, vol. 30(1), pages 147-54, March.
- John Knight & Colin Lizieri & Stephen Satchell, 2005. "Diversification When It Hurts? The Joint Distributions of Real Estate and Equity Markets," Real Estate & Planning Working Papers rep-wp2005-16, Henley Business School, Reading University.
- Patton, Andrew J. & Sheppard, Kevin, 2009. "Optimal combinations of realised volatility estimators," International Journal of Forecasting, Elsevier, vol. 25(2), pages 218-238.
- Michael McAleer & Marcelo Medeiros, 2008.
"Realized Volatility: A Review,"
Taylor & Francis Journals, vol. 27(1-3), pages 10-45.
- Yacine Aït-Sahalia & Jean Jacod, 2012. "Analyzing the Spectrum of Asset Returns: Jump and Volatility Components in High Frequency Data," Journal of Economic Literature, American Economic Association, vol. 50(4), pages 1007-50, December.
- Dungey, Mardi & Luciani, Matteo & Veredas, David, 2012.
"Ranking systemically important financial institutions,"
15473, University of Tasmania, Tasmanian School of Business and Economics, revised 21 Nov 2012.
- Mardi Dungey & Matteo Luciani & David Veredas, 2012. "Ranking Systemically Important Financial Institutions," Tinbergen Institute Discussion Papers 12-115/IV/DSF44, Tinbergen Institute.
- Mardi Dungey & Matteo Luciani & David Veredas, 2012. "Ranking Systemically Important Financial Institutions," CAMA Working Papers 2012-47, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
- Mardi Dungey & Michael McKenzie & Vanessa Smith, 2007.
"Empirical Evidence On Jumps In The Term Structure Of The Us Treasury Market,"
CAMA Working Papers
2007-25, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
- Dungey, Mardi & McKenzie, Michael & Smith, L. Vanessa, 2009. "Empirical evidence on jumps in the term structure of the US Treasury Market," Journal of Empirical Finance, Elsevier, vol. 16(3), pages 430-445, June.
- Fisher, Lawrence & Lorie, James H, 1970. "Some Studies of Variability of Returns on Investments in Common Stocks," The Journal of Business, University of Chicago Press, vol. 43(2), pages 99-134, April.
- Beck, Kristine L & Perfect, Steven B & Peterson, Pamela P, 1996. "The Role of Alternative Methodology on the Relation between Portfolio Size and Diversification," The Financial Review, Eastern Finance Association, vol. 31(2), pages 381-406, May.
- Butler, K. C. & Joaquin, D. C., 2002. "Are the gains from international portfolio diversification exaggerated? The influence of downside risk in bear markets," Journal of International Money and Finance, Elsevier, vol. 21(7), pages 981-1011, December.
- Wasserfallen, Walter & Zimmermann, Heinz, 1985. "The behavior of intra-daily exchange rates," Journal of Banking & Finance, Elsevier, vol. 9(1), pages 55-72, March.
- Ron Bird & Mark Tippett, 1986. "Note---Naive Diversification and Portfolio Risk---A Note," Management Science, INFORMS, vol. 32(2), pages 244-251, February.
- Andersen, Torben G. & Bollerslev, Tim & Diebold, Francis X. & Ebens, Heiko, 2001. "The distribution of realized stock return volatility," Journal of Financial Economics, Elsevier, vol. 61(1), pages 43-76, July.
- Bandi, Federico M. & Russell, Jeffrey R., 2006. "Separating microstructure noise from volatility," Journal of Financial Economics, Elsevier, vol. 79(3), pages 655-692, March.
- Jérôme Lahaye & Sébastien Laurent & Christopher J. Neely, 2011.
"Jumps, cojumps and macro announcements,"
Journal of Applied Econometrics,
John Wiley & Sons, Ltd., vol. 26(6), pages 893-921, 09.
- Jérôme Lahaye & Sébastien Laurent & Christopher J. Neely, 2007. "Jumps, cojumps and macro announcements," Working Papers 2007-032, Federal Reserve Bank of St. Louis.
- LAHAYE, Jérôme & LAURENT, Sébastien & NEELY, Christopher J., . "Jumps, cojumps and macro announcements," CORE Discussion Papers RP 2413, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- repec:eca:wpaper:2013/130530 is not listed on IDEAS
- Andersen, Torben G. & Bollerslev, Tim, 1997. "Intraday periodicity and volatility persistence in financial markets," Journal of Empirical Finance, Elsevier, vol. 4(2-3), pages 115-158, June.
- John L. Evans & Stephen H. Archer, 1968. "Diversification And The Reduction Of Dispersion: An Empirical Analysis," Journal of Finance, American Finance Association, vol. 23(5), pages 761-767, December.
- Simone Brands & David R. Gallagher, 2005. "Portfolio selection, diversification and fund-of-funds: a note," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 45(2), pages 185-197.
- Dale L. Domian & David A. Louton & Marie D. Racine, 2007. "Diversification in Portfolios of Individual Stocks: 100 Stocks Are Not Enough," The Financial Review, Eastern Finance Association, vol. 42(4), pages 557-570, November.
- Elton, Edwin J & Gruber, Martin J, 1977. "Risk Reduction and Portfolio Size: An Analytical Solution," The Journal of Business, University of Chicago Press, vol. 50(4), pages 415-37, October.
- Hansen, Peter R. & Lunde, Asger, 2006. "Realized Variance and Market Microstructure Noise," Journal of Business & Economic Statistics, American Statistical Association, vol. 24, pages 127-161, April.
- John Knight & Colin Lizieri & Stephen Satchell, 2005. "Diversification when It Hurts? The Joint Distributions of Real Estate and Equity Markets1," Journal of Property Research, Taylor & Francis Journals, vol. 22(4), pages 309-323, December.
- Johnson, K. H. & Shannon, D. S., 1974. "A note on diversification and the reduction of dispersion," Journal of Financial Economics, Elsevier, vol. 1(4), pages 365-372, December.
- Statman, Meir, 1987. "How Many Stocks Make a Diversified Portfolio?," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 22(03), pages 353-363, September.
When requesting a correction, please mention this item's handle: RePEc:tas:wpaper:17316. 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: (Vitali Alexeev)
If references are entirely missing, you can add them using this form.