http://www.bloomberg.com/news/2012-...whipsaw-investors-in-ibm-coke-mcdonald-s.html
Investors in three of the biggest Dow Jones Industrial Average (INDU) stocks were whipsawed by price swings that repeated every hour yesterday, fueling speculation the moves were a consequence of computerized trading.
Shares of International Business Machines Corp. (IBM), McDonaldâs Corp. (MCD) and Coca-Cola Co. (KO) swung between successive lows and highs in intervals that began near the top and bottom of each hour, data compiled by Bloomberg show.
