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The maturity effect of stock index futures: Speculation or carry arbitrage?

Kewei Xu, Xiong Xiong and Xiao Li

Research in International Business and Finance, 2021, vol. 58, issue C

Abstract: Using the implementation of trading restrictions on CSI 300 index futures market as a quasi-natural experiment, this paper examines the maturity effect of stock index futures and its determinants. The results show that the maturity effect changes from weakly positive to significantly negative after trading restrictions are implemented. We find that the change in the maturity effect is rooted in the speculative effect, which is measured by the time pattern of price sensitivity to information, while there is a lack of support for the carry arbitrage effect on the maturity effect of index futures. Our findings provide an opportunity to better understand volatility dynamics in the equity futures market.

Keywords: Maturity effect; Stock index futures; Futures volatility; Speculation (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1016/j.ribaf.2021.101473

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