Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 6Company Closing price Change in % VolumeSTOCKHOLM (SEK)Holmen 289,00 0,35 305Stora Enso 101,25 0,00 2 334COPENHAGEN (DKK)Vestas Wind Systems 509,00 0,59 1 254 247HELSINKI (EUR)Fortum 30,11 - 5/12Stora Enso 10,67 - 5/12OSLO (NOK)Arendals Fossekompani 2000,00 - 30/11Hafslund 155,00 2,31 4 531Norsk Hydro 77,20 2,12 13...