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How Have Contracts for Difference Affected Irish Equity Market Volatility?

Author

Listed:
  • Shaen Corbet

    (Dublin City University)

  • Cian Twomey

    (National University of Ireland, Galway)

Abstract

Contracts for Difference (CFDs) have existed for less than twenty years and the market has grown significantly up to the period before the recent international crises. This paper presents an analysis of how CFDs have affected equity market volatility in Ireland. EGARCH models are used to uncover volatility changes in the periods before and after the introduction of the new trading product in Ireland. We find that CFDs appear to have lowered asset-specific volatility across the majority of equities traded on the Irish Stock Exchange. These findings do not correspond to the expected volatility increase associated with leveraged products that are closely associated with high frequency trading. Our empirical analysis suggests that CFDs are having an alternative volatility reducing effect through the presence of bid and ask price 'overhangs' that are generated through the hedging practices of CFD brokers. A fully worked example of the development of an 'overhang' is provided.

Suggested Citation

  • Shaen Corbet & Cian Twomey, 2014. "How Have Contracts for Difference Affected Irish Equity Market Volatility?," The Economic and Social Review, Economic and Social Studies, vol. 45(4), pages 559-577.
  • Handle: RePEc:eso:journl:v:45:y:2014:i:4:p:559-577
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    References listed on IDEAS

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    1. Evangelos Drimbetas & Nikolaos Sariannidis & Nicos Porfiris, 2007. "The effect of derivatives trading on volatility of the underlying asset: evidence from the Greek stock market," Applied Financial Economics, Taylor & Francis Journals, vol. 17(2), pages 139-148.
    2. Christine Brown & Jonathan Dark & Kevin Davis, 2010. "Exchange traded contracts for difference: Design, pricing, and effects," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 30(12), pages 1108-1149, December.
    3. Bessembinder, Hendrik & Seguin, Paul J., 1993. "Price Volatility, Trading Volume, and Market Depth: Evidence from Futures Markets," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 28(01), pages 21-39, March.
    4. Shaen Corbet & Cian Twomey, 2014. "Quantifying the Effects of the Inclusion and Segregation of Contracts for Difference in Australian Equity Markets," International Journal of Economics and Financial Issues, Econjournals, vol. 4(2), pages 411-426.
    5. Pierluigi Bologna & Laura Cavallo, 2002. "Does the introduction of stock index futures effectively reduce stock market volatility? Is the 'futures effect' immediate? Evidence from the Italian stock exchange using GARCH," Applied Financial Economics, Taylor & Francis Journals, vol. 12(3), pages 183-192.
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    Cited by:

    1. Shaen Corbet & Cian Twomey, 2014. "Quantifying the Effects of the Inclusion and Segregation of Contracts for Difference in Australian Equity Markets," International Journal of Economics and Financial Issues, Econjournals, vol. 4(2), pages 411-426.

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