The STOXX 50 edged up 0.2% and the STOXX 600 gained 0.6% on Friday, with both indexes on track to close the week approximately 1.8% higher, potentially marking a fifth consecutive weekly advance.
Investors continued to weigh the prospects of a de-escalation in the ongoing trade war.
On Friday, healthcare, telecommunications, and oil & gas sectors led the gains, while technology stocks lagged behind.
Meanwhile, traders digested a fresh round of corporate earnings.
Shares of Richemont surged around 4% after the luxury goods group reported a better-than-expected 7% increase in Q1 revenues.
Swiss Re also posted strong results, with a 16% rise in quarterly profit.