 Does option trading affect idiosyncratic momentum?Songchan Guo, Unyong Pyo and David McMillan Cogent Economics & Finance, 2020, vol. 8, issue 1, 1824362 Abstract: Portfolios in idiosyncratic momentum are formed on past residuals of the Fama-French three factor model rather than past total returns. This study examines whether the idiosyncratic momentum strategy can sustain excess returns following the emergence of traded options. We compare idiosyncratic momentum returns with traditional momentum returns over different holding periods and over difference in traded options. Our results show that idiosyncratic momentum returns for stocks with options are positive for three, six, and twelve months following the formation date, while traditional momentum returns for those with options are insignificant or even turn to negative. We also find strong evidence that the enhanced information efficiency led by short selling has impacts more on traditional momentum than on idiosyncratic momentum. While traditional momentum disappears on stocks with traded options, idiosyncratic momentum survives and is still anomalous to the efficient market hypothesis. Date: 2020 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:taf:oaefxx:v:8:y:2020:i:1:p:1824362 Ordering information: This journal article can be ordered from DOI: 10.1080/23322039.2020.1824362 Access Statistics for this article Cogent Economics & Finance is currently edited by Steve Cook, Caroline Elliott, David McMillan, Duncan Watson and Xibin Zhang More articles in Cogent Economics & Finance from Taylor & Francis Journals |
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