In the UK the FTSE 100 Index has lost about 10 points to 4924.4 points in its morning session, paced by companies in the mining sector.
London's FTSE 100 Index has declined 15.50 points to 4922.10 points at its close today, led by Morrison.
The FTSE is back over the 5,000 mark, paced by firms in the energy sector, including United Utilities.
Comments ahead of OPEC's meeting in Iran tomorrow have pushed up oil stocks, sending the FTSE 100 index higher by about 13 points to 4,988.
In the UK today, the FTSE 100 index has lost further ground at its close a short while ago, as the number of stocks sliding far outweighed those making any gains.
The FTSE 100 index has closed close on 20 points higher to 4,981.2 points at its weekend close, led by sale proposals at Whitbread.
The FTSE 100 index has shed further value today and closed down 34 points to 4,962.1 points, led by firms in the mining sector.
Gains by bank stocks have helped the FTSE gain about 15 points to 5,025 this morning.
Three-quarters of FTSE 100 constituents are down so far today, sending the index down about 15 points to 5,012.
Top UK shares barely moved the FTSE 100 index this morning, as it dropped less than a point to 5,034, as shares in the London Stock Exchange dropped on news a bid from German rival Deutsche Bourse has been dropped.