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Aggregate Investor Sentiment and Time-Varying Price Discovery: Evidence from the Options Market

Author

Listed:
  • Yaping Zhou

    (Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai, China)

  • Dayong Lv

    (School of Financial Technology, Shanghai Lixin University of Accounting and Finance, Shanghai, China)

Abstract

Previous literature shows that the price-discovery ability of options market varies substantially over time. Using data of Shanghai Stock Exchange 50 exchange-traded fund options, this paper shows that options prices contribute relatively less to price discovery during low-sentiment periods, but the price-discovery ability of options market remains unchanged during high-sentiment periods. These results suggest that change in aggregate investor sentiment is an important source of the time variation in options’ price discovery ability. Moreover, the options market experiences greater bid-ask spreads when investor sentiment is lower, supporting a “transaction costs mechanism.” This paper fulfills related literature on the time variation in options’ price-discovery ability.

Suggested Citation

  • Yaping Zhou & Dayong Lv, 2023. "Aggregate Investor Sentiment and Time-Varying Price Discovery: Evidence from the Options Market," Economic Analysis Letters, Anser Press, vol. 2(2), pages 1-6, May.
    • Handle: RePEc:bba:j00004:v:2:y:2023:i:2:p:1-6:d:86
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    References listed on IDEAS

    as
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    2. Stambaugh, Robert F. & Yu, Jianfeng & Yuan, Yu, 2012. "The short of it: Investor sentiment and anomalies," Journal of Financial Economics, Elsevier, vol. 104(2), pages 288-302.
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    5. Muravyev, Dmitriy & Pearson, Neil D. & Paul Broussard, John, 2013. "Is there price discovery in equity options?," Journal of Financial Economics, Elsevier, vol. 107(2), pages 259-283.
    6. Richard Holowczak & Yusif Simaan & Liuren Wu, 2006. "Price discovery in the U.S. stock and stock options markets: A portfolio approach," Review of Derivatives Research, Springer, vol. 9(1), pages 37-65, January.
    7. Patel, Vinay & Putniņš, Tālis J. & Michayluk, David & Foley, Sean, 2020. "Price discovery in stock and options markets," Journal of Financial Markets, Elsevier, vol. 47(C).
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