Can the market divide and multiply? A case of 807 percent mispricing

Martijn J. van den Assem, Dennie van Dolder, Remco C.J. Zwinkels and Marc B.J. Schauten

Review of Behavioral Finance, 2020, vol. 14, issue 1, 35-44

Abstract: Purpose - This paper documents a strong violation of the law of one price surrounding a large rights issue. Design/methodology/approach - If prices are right, the relation between the prices of shares and rights follows the outcome of a simple calculation. Findings - In the case of Royal Imtech N.V. in 2014, prices deviated sharply and persistently from the theoretical prediction. Throughout the term of the rights, investors were buying shares at prices that were many times what they should have been given the price of the rights. Short-selling constraints in the form of high recall risk and lacking stock lending supply are the most likely explanation for the failure of arbitrage as a safeguard of market efficiency. Still, it remains remarkable that investors were buying large volumes of shares at highly inflated prices in the presence of a cheap, perfect substitute. Originality/value - The mispricing was special not just because of its severity but also because unlike previously documented cases there was no fundamental risk and no material noise trader risk.

Keywords: Law of one price; Market efficiency; Mispricing; Limits to arbitrage; Short-sale constraints; G12; G14; G40 (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eme:rbfpps:rbf-01-2020-0009

DOI: 10.1108/RBF-01-2020-0009

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