"The price of any shares of our common stock purchased in the open market to satisfy Plan requirements will be the weighted average price per share of the aggregate number of shares purchased for the relevant Investment Date."
Those of us using the DUK DRIP should know pretty soon. Dividend payments designated for reinvestment are invested on the Investment Date immediately following the applicable dividend payment date. An “Investment Date” for the DUK DRIP occurs each Thursday. Yesterday (3/17/2011) was a Thursday so I would expect to see it after today's close.