Single Stock Call Options as Lottery Tickets - Overpricing and Investor Sentiment
Roman Kräussl () and
Philip Stork ()
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Luiz Felix: VU University Amsterdam, the Netherlands
No 16-022/IV, Tinbergen Institute Discussion Papers from Tinbergen Institute
This paper investigates whether the overpricing of out-of-the money single stock calls can be explained by Tversky and Kahneman's (1992) cumulative prospect theory (CPT). We hypothesize that these options are overpriced because investors overweight small probability events and overpay for positively skewed securities, i.e, lottery tickets. We find that overweighting of small probabilities embedded in the CPT explains the richness of out-of-the money single stock calls better than other utility functions. Nevertheless, overweighting of small probabilities events is less pronounced than suggested by the CPT, is strongly time-varying and most frequent in options of short maturity. Fluctuations in overweighting of small probabilities are largely explained by the sentiment factor.
Keywords: Cumulative prospect theory; Market sentimen; Risk-neutral densities; Call options (search for similar items in EconPapers)
JEL-codes: G02 G12 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-upt
Date: 2016-04-01, Revised 2018-01-26
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Persistent link: https://EconPapers.repec.org/RePEc:tin:wpaper:20160022
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