Trading collar, intraday periodicity and stock market volatility

Satheesh V. Aradhyula, A. Tolga Ergün

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Using five-minute data, market volatility in the Dow Jones Industrial Average is examined in the presence of trading collars. A polynomial specification is used for capturing intraday seasonality. Results indicate that market volatility is 3.4% higher in declining markets when trading collars are in effect. Results also support a U-shaped intraday periodicity in volatility.

Original languageEnglish (US)
Pages (from-to)909-913
Number of pages5
JournalApplied Financial Economics
Issue number13
StatePublished - Sep 1 2004

ASJC Scopus subject areas

  • Finance
  • Economics and Econometrics


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