The benchmark FTSE 100 index has so far lost 10 points to 4,492 after UK stocks dropped, paced by drugmakers AstraZeneca and GlaxoSmithKline.
Vodafone, the largest company on the FTSE 100 index by volume, has suffered its biggest loss in seven months along with banking stocks expecting to see profits hit by new accounting rules.
The benchmark FTSE 100 has so far lost about 15 points to 4,490 after UK stocks commenced this monring's trading on a mixed note.
The benchmark FTSE 100 closed up 12.50 points today at 4,505.80 after UK stocks rose for a fourth day, paced by GUS and Tesco.
UK stocks ended the day on a positive note after US Federal Reserve chairman Alan Greenspan said inflation is not a serious concern.
The benchmark FTSE 100 has so far added about 7 points to yesterdays gains to take the index to 4,466 after UK stocks commenced trading on a mixed note.
Having suffered on the back of rising oil prices earlier in the week, the FTSE 100 index eventually managed to close up as most of the stocks made reasonable gains.
The FTSE 100 index ended Thursday's trading up 12.6 points at 4,435.4 as the market waited for the OPEC announcement, while Marks & Spencer declined and SABMiller advanced.
The FTSE 100 index has started the day flat at 4,455 points after UK stocks fell slightly, paced by declines made by Boots and Next.
A boost in potential profits for Imperial Chemical Industries helped the FTSE 100 to close up today, as confidence in the industrial and mining sectors shifted back into the blue.