Settlement procedures and stock market efficiency |
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Authors: | Emily Lin Carl R Chen |
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Institution: | 1. Department of Fashion Administration & Management, St. John’s University, New Taipei City, Taiwan;2. Department of Economics and Finance, University of Dayton, Dayton, Ohio |
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Abstract: | This study examines why most derivatives markets that settle on the day following expiration choose the opening rather than the closing price as the final settlement price (FSP), whereas most markets that settle on the expiration day select an average rather than a single price as the FSP. Four exogenous changes in the Taiwan Futures Exchange settlement procedures provide an experimental basis for studying the settlement procedures’ impact on underlying assets. Greatest market efficiency is observed when the FSP is determined by a single rather than an average price and hypothesize that manipulation is prevented at the expense of market quality. |
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Keywords: | expiration-day effects intraday seasonality liquidity market depth market efficiency price discovery spillover effect |
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