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Does an Index Split Enhance Trading Activity and Hedging Efficiency of the Futures Contract?
Stockholm University, Faculty of Social Sciences, School of Business.
2006 (English)In: Journal of futures markets, ISSN 0270-7314, E-ISSN 1096-9934, Vol. 26, 1169-1194 p.Article in journal (Refereed) Published
Abstract [en]

Lately, several stock index futures exchanges have experimented with an altered contract design in order to make the contract more attractive and to increase investor accessibility. In 1998, the Swedish futures exchange (OM) split the OMX-index futures contract with a factor 4:1, without altering any other aspect of the futures contract design. This isolated contract redesign enables a ceteris paribus analysis of the effects of a futures split. The purpose is to investigate whether the futures split affects the futures market trading activity, as well as hedging effectiveness and basis risk of the futures contract. A bivariate GARCH framework is used to jointly model stock index returns and changes in the futures basis, and to obtain measures of hedging efficiency and basis risk. Significantly increased hedging efficiency and lower relative basis risk is found following the split. Also, evidence of an increased trading volume is found after the split, whereas the futures bid-ask spread appears to be unaffected by the split. The results are consistent with the idea that the futures split has enhanced trading activity and hedging effectiveness of the futures contract, without raising the costs of transacting at the futures market.

Place, publisher, year, edition, pages
2006. Vol. 26, 1169-1194 p.
National Category
Business Administration
Research subject
Business Administration
URN: urn:nbn:se:su:diva-43354DOI: 10.1002/fut.20237OAI: diva2:356009
Available from: 2010-10-09 Created: 2010-10-09 Last updated: 2010-10-15Bibliographically approved

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