Luxembourg-based ArcelorMittal MT.AS gained 2.7% after reporting its strongest quarter in more than a decade. By Anisha Sircar Nov 11 (Reuters) - European stocks were little changed on Thursday after concerns about U.S. inflation spike offset some relief around property developer China Evergrande and a slew of corporate earnings. The pan-European STOXX 600 .STOXX was flat in morning trade after data on Wednesday showed U.S. consumer prices surged at the fastest pace since 1990, which could compel the Federal Reserve into faster policy tightening.