However, they retreated 16.2p to 500.1p as Investec dropped its target price to 550p.
Goals Soccer Centres, which issued a profit warning in November, reeled 3.5p to 140p when it warned annual sales would be lower than the previous year and said boss Keith Rogers is to run its single-site US arm.
On AIM, online ad firm Blinkx surged 4.49p, or 29%, to 19.99p after third-quarter earnings were ahead of expectations and it managed to break even.