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Pinning in the S&P 500 Futures

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Author Info

  • Benjamin Golez

    () (Universitat Pompeu Fabra, Barcelona, Spain)

  • Jens Carsten Jackwerth

    () (Department of Economics, University of Konstanz, Germany)

Abstract

We document that S&P 500 futures finish in the proximity of the closest strike price more often on days when serial options on S&P 500 futures expire than on other days. The effect is driven by the interplay of market makers' rebalancing of delta hedges due to the time-decay of the hedges as well as in response to reselling (and early exercise) of in-the-money options by individual investors. Consistent with limits to arbitrage, we find that the effect is asymmetric and stronger above the strike price. In line with increased options activity, pinning becomes more pronounced in recent years.

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Bibliographic Info

Paper provided by Department of Economics, University of Konstanz in its series Working Paper Series of the Department of Economics, University of Konstanz with number 2010-12.

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Length: 49 pages
Date of creation: 23 Aug 2010
Date of revision:
Handle: RePEc:knz:dpteco:1012

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Related research

Keywords: Pinning; Futures; Options; Option Expiration; Hedging;

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