income business with that of Citigroup, where the U.S. bank reported a slump in trading revenues. On the upside, Greek gaming group OPAP's offering of up to 16.44 percent of its shares was priced at the upper end of its indicated range, with news of the successful placement driving the stock nearly 5 percent higher. Elsewhere, Cable & Wireless gained 2.4 percent as sources said the telecoms firm was in early-stage talks to buy privately owned rival Energis, a deal some analysts said would be significantly earnings enhancing to C&W. In New York the Dow Jones index was down 0.2 percent at 10,615 points when European markets closed, while the tech-laced Nasdaq Composite fell 0.5 percent to 2,145.8.