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Changes in the options contract size and arbitrage opportunities

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  • Joonhyuk Song
  • Doojin Ryu
  • Jinyoung Yu

Abstract

We examine the impacts of changes to the options multiplier on market efficiency by analyzing their effects on arbitrage proxies based on the performance of options spread strategies. Despite the intentions of the reforms, both decisions to raise and reduce the multiplier significantly increase the frequency and probability of arbitrage opportunities. Whereas the increment in the multiplier also deteriorates market efficiency by increasing the duration and average size of the arbitrage opportunities in a day, the decrement does not affect these proxies. Our results overall provide evidence that reforms to the options multiplier do not enhance market efficiency and suggest that retail investors are not homogeneously noisy.

Suggested Citation

  • Joonhyuk Song & Doojin Ryu & Jinyoung Yu, 2023. "Changes in the options contract size and arbitrage opportunities," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 43(1), pages 122-137, January.
    • Handle: RePEc:wly:jfutmk:v:43:y:2023:i:1:p:122-137
    DOI: 10.1002/fut.22380
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    1. Jieun Lee & Doojin Ryu, 2019. "The impacts of public news announcements on intraday implied volatility dynamics," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 39(6), pages 656-685, June.
    2. Shleifer, Andrei & Summers, Lawrence H, 1990. "The Noise Trader Approach to Finance," Journal of Economic Perspectives, American Economic Association, vol. 4(2), pages 19-33, Spring.
    3. Doojin Ryu & Jinyoung Yu, 2021. "Informed options trading around holidays," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 41(5), pages 658-685, May.
    4. Fama, Eugene F & French, Kenneth R, 1988. "Permanent and Temporary Components of Stock Prices," Journal of Political Economy, University of Chicago Press, vol. 96(2), pages 246-273, April.
    5. Doojin Ryu & Doowon Ryu & Heejin Yang, 2021. "The impact of net buying pressure on index options prices," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 41(1), pages 27-45, January.
    6. De Long, J Bradford & Andrei Shleifer & Lawrence H. Summers & Robert J. Waldmann, 1990. "Noise Trader Risk in Financial Markets," Journal of Political Economy, University of Chicago Press, vol. 98(4), pages 703-738, August.
    7. Mark Grinblatt & Matti Keloharju, 2001. "What Makes Investors Trade?," Journal of Finance, American Finance Association, vol. 56(2), pages 589-616, April.
    8. Mark Grinblatt & Matti Keloharju, 2000. "What Makes Investors Trade?," Yale School of Management Working Papers ysm146, Yale School of Management, revised 01 Nov 2001.
    9. R. David Mclean & Jeffrey Pontiff, 2016. "Does Academic Research Destroy Stock Return Predictability?," Journal of Finance, American Finance Association, vol. 71(1), pages 5-32, February.
    10. Doojin Ryu & Heejin Yang, 2020. "Noise traders, mispricing, and price adjustments in derivatives markets," The European Journal of Finance, Taylor & Francis Journals, vol. 26(6), pages 480-499, April.
    11. Heejin Yang & Doojin Ryu & Doowon Ryu, 2018. "Market Reform and Efficiency: The Case of KOSPI200 Options," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 54(12), pages 2687-2697, September.
    12. John Hua Fan & Adrian Fernandez‐Perez & Ana‐Maria Fuertes & Joëlle Miffre, 2020. "Speculative pressure," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 40(4), pages 575-597, April.
    13. Warren Bailey & Alok Kumar & David Ng, 2008. "Foreign Investments of U.S. Individual Investors: Causes and Consequences," Management Science, INFORMS, vol. 54(3), pages 443-459, March.
    14. Lee, Jaeram & Kang, Jangkoo & Ryu, Doojin, 2015. "Common deviation and regime-dependent dynamics in the index derivatives markets," Pacific-Basin Finance Journal, Elsevier, vol. 33(C), pages 1-22.
    15. Bjursell, Johan & Frino, Alex & Tse, Yiuman & Wang, George H.K., 2010. "Volatility and trading activity following changes in the size of futures contracts," Journal of Empirical Finance, Elsevier, vol. 17(5), pages 967-980, December.
    16. Mark Broadie & Mikhail Chernov & Michael Johannes, 2009. "Understanding Index Option Returns," Review of Financial Studies, Society for Financial Studies, vol. 22(11), pages 4493-4529, November.
    17. Hee‐Joon Ahn & Jangkoo Kang & Doojin Ryu, 2008. "Informed trading in the index option market: The case of KOSPI 200 options," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 28(12), pages 1118-1146, December.
    18. Wonho Song & Doojin Ryu & Robert I. Webb, 2018. "Volatility dynamics under an endogenous Markov-switching framework: a cross-market approach," Quantitative Finance, Taylor & Francis Journals, vol. 18(9), pages 1559-1571, September.
    19. Doojin Ryu, 2015. "The Information Content of Trades: An Analysis of KOSPI 200 Index Derivatives," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 35(3), pages 201-221, March.
    20. Ryu, Doojin & Yang, Heejin, 2017. "Price disagreements and adjustments in index derivatives markets," Economics Letters, Elsevier, vol. 151(C), pages 104-106.
    21. Heejin Yang & Ali M. Kutan & Doojin Ryu, 2018. "Option moneyness and price disagreements," Applied Economics Letters, Taylor & Francis Journals, vol. 25(3), pages 192-196, February.
    22. Sugato Chakravarty & Huseyin Gulen & Stewart Mayhew, 2004. "Informed Trading in Stock and Option Markets," Journal of Finance, American Finance Association, vol. 59(3), pages 1235-1258, June.
    23. Doojin Ryu & Heejin Yang, 2018. "The directional information content of options volumes," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 38(12), pages 1533-1548, December.
    24. Chordia, Tarun & Subrahmanyam, Avanidhar & Tong, Qing, 2014. "Have capital market anomalies attenuated in the recent era of high liquidity and trading activity?," Journal of Accounting and Economics, Elsevier, vol. 58(1), pages 41-58.
    25. Ryu, Doojin & Yang, Heejin, 2019. "Who has volatility information in the index options market?," Finance Research Letters, Elsevier, vol. 30(C), pages 266-270.
    26. Yang, Heejin & Kutan, Ali M. & Ryu, Doojin, 2019. "Volatility information trading in the index options market: An intraday analysis," International Review of Economics & Finance, Elsevier, vol. 64(C), pages 412-426.
    27. Chung, Kee H. & Park, Seongkyu “Gilbert” & Ryu, Doojin, 2016. "Trade duration, informed trading, and option moneyness," International Review of Economics & Finance, Elsevier, vol. 44(C), pages 395-411.
    28. Doojin Ryu & Heejin Yang, 2022. "Intraday option price changes and net buying pressure," Applied Economics Letters, Taylor & Francis Journals, vol. 29(4), pages 292-297, February.
    29. Chang, Chuang-Chang & Hsieh, Pei-Fang & Lai, Hung-Neng, 2009. "Do informed option investors predict stock returns? Evidence from the Taiwan stock exchange," Journal of Banking & Finance, Elsevier, vol. 33(4), pages 757-764, April.
    30. Shefrin, Hersh & Statman, Meir, 1994. "Behavioral Capital Asset Pricing Theory," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 29(3), pages 323-349, September.
    31. Heejin Yang & Jaeram Lee & Doojin Ryu, 2018. "Market depth, domestic investors and price monotonicity violations," Applied Economics Letters, Taylor & Francis Journals, vol. 25(10), pages 688-692, June.
    32. Seongkyu Gilbert Park & Doojin Ryu, 2021. "Contract size changes in the options market: effects on market efficiency and investor behaviour," Applied Economics, Taylor & Francis Journals, vol. 53(57), pages 6670-6682, December.
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