English, Article edition: An examination of the Australian Stock Exchange and Australian Financial Review's fair values Steve Easton; Irena Ivanovic

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Bookmark: http://trove.nla.gov.au/version/28428
Physical Description
  • article
Language
  • English

Edition details

Title
  • An examination of the Australian Stock Exchange and Australian Financial Review's fair values
Author
  • Steve Easton
  • Irena Ivanovic
Physical Description
  • article
Notes
  • Purpose – The paper seeks to examine fair values provided by the Australian Stock Exchange (ASX) and reported daily in the Australian Financial Review to determine whether they violate fundamental option relationships. Design/​methodology/​approach – Values reported in the Australian Financial Review from 4 January 2005 to 31 March 2005 are examined. Findings – The results document that between 1 and 2 per cent violate the most fundamental option relationships, specifically the requirement for call and put option values to increase as term to expiry increases, and for call (put) option values to increase (decrease) as exercise price decreases. Further, the magnitude of these violations is too large to be explained solely by the bid-ask spread. They are, nevertheless, consistent with staleness. Further, in nearly 30 per cent of cases these fair values violate the basic put-call parity relationship. The type of these violations is also consistent with these values being stale. Research limitations/​implications – Simple screens should be included to remove fair values that breach the most basic relationships. Originality/​value – The paper is the first to highlight flaws in fair values provided by the Australian Stock Exchange (ASX) and reported in the Australian Financial Review.
  • Australia, Bid offer spreads, Fair value, Options markets, Stock exchanges
  • RePEc:eme:ijmfpp:v:3:y:2007:i:3:p:306-312
Language
  • English
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