European Stocks Open Lower; Stoxx 50 Down 0.5%, FTSE 100 Falls 1.1%

The FTSE 100's steeper decline relative to the DAX and CAC 40 points to outsized pressure on London-listed names, whether from index composition or UK-specific factors. The breadth of the selloff — every major benchmark lower — suggests a regional risk-off move rather than isolated weakness. Whether the UK underperformance persists or converges with continental peers is the open question.