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Differences of Opinion of Public Information and Speculative Trading in Stocks and Options

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Author Info

  • H. Henry Cao
  • Hui Ou-Yang

Abstract

We analyze the effects of differences of opinion on the dynamics of trading volume in stocks and options. We find that disagreements about the mean of the current- and next-period public information lead to trading in stocks in the current period but have no effect on options trading. Without options, we find that disagreements about the precision of all past and current public information affect trading in stocks in the current period. With options, only disagreements about the precisions of the next- and current-period information affect stocks and options trading in the current period. Our results suggest that options trading is concentrated around information events that are likely to cause disagreements among investors, whereas trading in stocks may be diffusive over many periods. The Author 2008. Published by Oxford University Press on behalf of The Society for Financial Studies. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org, Oxford University Press.

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File URL: http://hdl.handle.net/10.1093/rfs/hhn020
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Bibliographic Info

Article provided by Society for Financial Studies in its journal The Review of Financial Studies.

Volume (Year): 22 (2009)
Issue (Month): 1 (January)
Pages: 299-335

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Handle: RePEc:oup:rfinst:v:22:y:2009:i:1:p:299-335

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Cited by:
  1. Badreddine, Sina & Galariotis, Emilios C. & Holmes, Phil, 2012. "The relevance of information and trading costs in explaining momentum profits: Evidence from optioned and non-optioned stocks," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 22(3), pages 589-608.
  2. Grundy, Bruce D. & Lim, Bryan & Verwijmeren, Patrick, 2012. "Do option markets undo restrictions on short sales? Evidence from the 2008 short-sale ban," Journal of Financial Economics, Elsevier, vol. 106(2), pages 331-348.
  3. Jiao, Jie & Qiu, Bin & Yan, An, 2013. "Diversification and heterogeneity of investor beliefs," Journal of Banking & Finance, Elsevier, vol. 37(9), pages 3435-3453.
  4. Ding, Rong & Cheng, Peng, 2011. "Speculative trading, price pressure and overvaluation," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 21(3), pages 419-442, July.
  5. Möbert, Jochen, 2009. "Do speculators drive crude oil prices? Dispersion in beliefs as a price determinant," Research Notes 32e, Deutsche Bank Research.
  6. Möbert, Jochen, 2009. "Unterschiedliche Markteinschätzungen von Spekulanten als Determinante des Rohölpreises," Research Notes 32, Deutsche Bank Research.
  7. Qin, Zhenjiang, 2013. "Speculations in option markets enhance allocation efficiency with heterogeneous beliefs and learning," Journal of Banking & Finance, Elsevier, vol. 37(12), pages 4675-4694.
  8. Choy, Siu Kai & Wei, Jason, 2012. "Option trading: Information or differences of opinion?," Journal of Banking & Finance, Elsevier, vol. 36(8), pages 2299-2322.
  9. Andy Fodor & Kevin Krieger & James Doran, 2011. "Do option open-interest changes foreshadow future equity returns?," Financial Markets and Portfolio Management, Springer, vol. 25(3), pages 265-280, September.

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