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All Guts, No Glory: Trading and Diversification among Online Investors

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  • Anders Anderson

Abstract

"I explore cross-sectional portfolio performance in a sample containing 324,736 transactions conducted by 16,831 Swedish investors at an Internet discount brokerage firm during the period May 1999 to March 2002. On average, investors hold undiversified portfolios, show a strong preference for risk, and trade aggressively. I measure performance using a panel data model, and explain the cross-sectional variation using investors' turnover, portfolio size and degree of diversification. I find that turnover is harmful to performance due to fees, and is therefore more predominant among investors with small portfolios. I argue that the degree of diversification is a proxy for investor skill, and it has a separate and distinct positive effect on performance. Investors underperform the market by about 8.5% per year on average, of which half can be attributed to trading costs." Copyright 2007 The Authors Journal compilation (c) 2007 Blackwell Publishing Ltd.

Suggested Citation

  • Anders Anderson, 2007. "All Guts, No Glory: Trading and Diversification among Online Investors," European Financial Management, European Financial Management Association, vol. 13(3), pages 448-471.
  • Handle: RePEc:bla:eufman:v:13:y:2007:i:3:p:448-471
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    Cited by:

    1. Hoechle, Daniel & Schmid, Markus & Zimmermann, Heinz, 2012. "Decomposing Performance," Working Papers on Finance 1216, University of St. Gallen, School of Finance, revised Nov 2015.
    2. Shih-Wei Wu & Fengyi Lin & Wenchang Fang, 2012. "Earnings Management and Investor's Stock Return," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 48(S3), pages 129-140, September.
    3. Shih-Wei Wu & Fengyi Lin & Wenchang Fang, 2012. "Earnings Management and Investor's Stock Return," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 48(S3), pages 129-140, September.

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