A week that saw the Dow Jones industrial average slip below 11,000 but the Nasdaq composite index again climb to record highs yielded mixed results for major Chicago-area stocks.
Telecommunications-equipment supplier Tellabs, based in Lisle, slipped 7.2 percent for the week, to $70.56, on word that long-distance phone company Sprint had canceled a project that was testing a line of Tellabs equipment.
But three sister phone companies based in Chicago–U.S. Cellular, Telephone and Data Systems and Aerial Communications–all advanced to record highs amid broad optimism about the telecommunications-service sector.
Computer and telecommunications-equipment giant Motorola, based in Schaumburg, slipped 4.6 percent from the previous Friday’s record closing high, to $119.56.
