Infineon Technologies AG, Europe's second-biggest chipmaker, climbed 13 percent to 7.48 euros this week. The company gets almost a quarter of its sales in the US. The stock extended its weekly gain today after Goldman, Sachs & Co forecast demand for DRAM chips, Infineon's main source of revenue, is rising as consumer confidence improves.
Rolls-Royce Plc was the biggest gainer in the Stoxx 600 this week. The aircraft-engine maker soared 29 percent to ?1.2375 after repeating a forecast that earnings this year will grow on demand for engine spare parts and repairs and saying it will accelerate cost cuts.



