Standard and Poor's made the following change to the S&P 500 Index on 12/19/2006. The stock chart shows the impact on the stock trading volume and resultant impact on the company's stock price upon being added to the S&P 500 Index.
(click on charts for larger image)
Following are the index changes that go into effect on 12/29/2006.
Spectra is the midstream gas business of Duke (DUK). The Spectra spin off is slated to close by 1.2.2007.