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...

To the extent that NYSE Rule 80A collar, which restricts index arbitrage form of program trading on volatile days, aims to delink S&P 500 cash and futures markets and prevent transmission of volatility from the futures to the cash market, this study finds the collar to be ineffective. The...