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A theoretical framework to evaluate different margin‐setting methodologies

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  • Kin Lam
  • Chor‐Yiu Sin
  • Rico Leung

Abstract

The margin system is the first line of defense against the default risk of a clearinghouse. From the perspectives of a clearinghouse, the utmost concern is to have a prudential system to control the default exposure. Once the level of prudentiality is set, the next concern will be the opportunity cost of the investors, because high opportunity cost discourages people from hedging futures, and thus defeats the function of a futures market. In this article, we first develop different measures of prudentiality and opportunity cost. We then formulate a statistical framework to evaluate different margin‐setting methodologies, all of which strike a balance between prudentiality and opportunity cost. Three margin‐setting methodologies, namely, (1) using simple moving averages; (2) using exponentially weighted moving averages; (3) using a GARCH approach, are applied to the Hang Seng Index futures. Keeping the same prudentiality level, it is shown that the one using a GARCH approach by and large gives the lowest average overcharge. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:117–145, 2004

Suggested Citation

  • Kin Lam & Chor‐Yiu Sin & Rico Leung, 2004. "A theoretical framework to evaluate different margin‐setting methodologies," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 24(2), pages 117-145, February.
  • Handle: RePEc:wly:jfutmk:v:24:y:2004:i:2:p:117-145
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    Cited by:

    1. Shi, Ruoding & Isengildina Massa, Olga, 2018. "Double-Edged Sword: Liquidity Implications of Futures Hedging," 2018 Annual Meeting, August 5-7, Washington, D.C. 274106, Agricultural and Applied Economics Association.
    2. Albert J Menkveld, 2017. "Crowded Positions: An Overlooked Systemic Risk for Central Clearing Parties," The Review of Asset Pricing Studies, Society for Financial Studies, vol. 7(2), pages 209-242.
    3. Berlinger, Edina & Dömötör, Barbara & Illés, Ferenc, 2019. "Anti-cyclical versus risk-sensitive margin strategies in central clearing," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 62(C), pages 117-131.
    4. Alexander, Carol & Kaeck, Andreas & Sumawong, Anannit, 2019. "A parsimonious parametric model for generating margin requirements for futures," European Journal of Operational Research, Elsevier, vol. 273(1), pages 31-43.
    5. Lam, Kin & Yu, P.L.H. & Lee, P.H., 2010. "A margin scheme that advises on when to change required margin," European Journal of Operational Research, Elsevier, vol. 207(1), pages 524-530, November.

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