The benchmark FTSE 100 index ended the day up 9.3 points at 4,524.3 after UK stocks rose for the second day in three.
MMO2 rose to its highest level ever after gaining 16.5p to 108.25p.
Hwever Abbey National dropped 7.5p to 563p after analysts at J.P. Morgan Chase & Co. downgraded the lender’s stock to "neutral" from "overweight".
Datamonitor declined 3p to 128.5p despite the market-research company reporting a net income of £2.49m, compared with a net loss of £6.63m in the year-ago period.
Image Scan Holdings climbed 4p to 39.5p. This is the 3D and X-ray technology provider’s biggest gain since December last year.
Jardine Lloyd Thompson Group, the insurance broker, shed 18.5p to 543.5p after a 7.4% increase in 2003 net income to £72.8m, compared with 2002.
On Wall Street, the Dow Jones Industrial Average index is currently down just under 15 points to 10,604 and the S&P 500 index is also down 0.82 points to 1,143, while the Nasdaq Composite index has so far lost 14.5 points to 2,023.3.IFAonline
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