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The Impact of Trader Behavior on Options Price Volatility

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  • Ping-Hung Chou
  • Pei-Shan Wu
  • Teng-Tsai Tu

Abstract

Because relatively few studies have examined the behavior among different types of traders in the options market, this investigation conducts an empirical study examining the impact of trader type on price volatility in the TXO market. It has been more than 10 years since the TXO market started in 2001. Compared with mature foreign options markets, the TXO market is considered as an emerging market and most transactions in the market are speculative in nature. This study investigates whether informed investors choose to trade options because of their higher leverage, which makes them attractive to speculators seeking to benefit from variations in the underlying price. This study also examines whether institutional investors are better informed than individual investors. In addition, this study attempts to illuminate the role played by market makers, whether as traditional specialists to provide liquidity and thus stabilize the price, or as opportunistic traders. Furthermore, this study aims to discover the relationship between trading duration and options price volatility, to clarify whether liquidity-based trading or informed-based trading dominates the TXO market. The empirical results suggest that institutional investors are better informed than individual investors. Meanwhile, market makers are liquidity providers in the put market, but liquidity demanders in the OTM and ATM call markets. Furthermore, the results verify that liquidity-based trading dominates the OTM call and put markets.

Suggested Citation

  • Ping-Hung Chou & Pei-Shan Wu & Teng-Tsai Tu, 2014. "The Impact of Trader Behavior on Options Price Volatility," Asian Economic and Financial Review, Asian Economic and Social Society, vol. 4(4), pages 503-516.
    • Handle: RePEc:asi:aeafrj:v:4:y:2014:i:4:p:503-516:id:1174
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