London's FTSE 100 has advanced thanks to strong earnings from IAG and Pearson and a rise in commodities stocks.
The index is 0.5%, or 39.87 points, higher at 7,542.56 points.
Pearson is the top performer, up 5.8%, after the troubled education publisher said it is on track to post higher annual profits for the first time in six years.
BA-owner IAG is close behind, up 4.7%, after it reported strong results for the first quarter - typically a slow time for airlines.
Miners, which represent some of the biggest companies on the FTSE 100, continue to do well thanks to a rise metals prices. BHP Billiton and Antofagasta are up 1.87% and 1.67% respectively.