Research by Cantor Index, a spread betting firm, reveals a list of investors' 10 best and worst performers for 2002. The buy list included Vodafone, Wolseley, Unilever, ICI, Smith & Nephew, Northern Foods, Rolls-Royce, Amec, Scottish & Newcastle and BG, which owns British Gas. The sell list comprised Logica, Land Securities, Schroders, Dimension Data, Colt Telecom, Michael Page, Next, Arcadia, Debenhams and Filtronic. The lists were based on trades made at the end of December and the beginning of January and on views gathered over that period.