The UK market closed slightly behind, after being ahead at midday thanks to healthy results from travel firm Tui.
At the end of trade the benchmark FTSE 100 was down 10.36 points, or 0.14%, at 7,286.56.
Travel firm Tui was the biggest riser on the index, up 5.27%, after its said first-quarter losses had narrowed.
The company was boosted by a strong rise in UK bookings, which were up by 10% in volume from a year earlier. Other winners were RBS and Capita.
Rolls-Royce was the biggest faller in the index, down 3.99% after it reported a pre-tax loss of £4.6bn.
The aerospace company was hit by the cost of a bribery settlement, and currency-related contracts were affected by the post-Brexit vote fall in sterling.