0720 GMT - European stocks largely are mixed at the open as chip stocks fall sharply on investor concerns the artificial-intelligence build-out will slow. Software and pharmaceutical names support the Europe-wide Stoxx 600, which trades flat. The Dutch AEX is flat, though ASML--Europe's most valuable company--falls 4.2%. Peers BE Semiconductor and ASM International drop 5% and 5.2%, respectively. The German DAX slips 0.1%, as data center-linked Siemens Energy sheds 4.2%. As chip stocks fall, software shares gain--in Paris, chip maker STMicroelectronics loses 3.2% while Capgemini jumps 5.05%. The CAC 40 falls 0.2%. London's FTSE 100 climbs 0.6%, driven by gains of around 4% for software groups Relx and Sage. GSK rises 2.5% after positive drug results. Italy's FTSE MIB falls 0.45%, while the Spanish IBEX 35 drops 0.3%.