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Directional information effects of options trading: Evidence from the banking industry

Brian Du and Scott Fung

Journal of International Financial Markets, Institutions and Money, 2018, vol. 56, issue C, 149-168

Abstract: This study examines the transmittance of directional information from the options trading process to equity values and the mechanism in which informed option trades translate to underlying asset valuations. We construct proxies for positive (negative) informed trades and find that they are associated with a value premium (discount). We demonstrate that information asymmetries in the banking industry accentuate the price discovery role of option trades, especially negatively informed trades. The results are consistent with the arguments in Miller (1977), which contends that overvaluation is pronounced in securities that are short-sale constrained and highly informationally opaque. During the short-sale ban of financial stocks in 2008, negative informed trades have a positive effect on short interest, suggesting that value implications are the result of hedging-related behavior by market makers.

Keywords: Options; Information efficiency; Opaqueness; Short-sell ban; Banking (search for similar items in EconPapers)
JEL-codes: G01 G13 G20 G21 G28 (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eee:intfin:v:56:y:2018:i:c:p:149-168

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