Dow Jones launches recovery play index

The six categories to be included are alternative energy, construction and materials, energy grid, environment, technology and telecommunications and internet. Construction and materials includes the largest number of components at 20, followed by Alternative Energy with 10. Each of the remaining sectors is allotted five constituents.To be included a company must have a three-month average daily trading volume of at least US$5million. They are then judged according to market capitalisation c