LONDON Oct 8 (Reuters) - Britain's top share index fellearly on Monday, exhibiting weakness after gains in the previoussession and overnight falls in Asia, with some caution buildingamong investors ahead of the start of the new earnings season.
By 0705 GMT, the FTSE 100 was down 40.75 points, or0.7 percent, at 5,830.27, erasing Friday's gains with concernsover the third-quarter earnings season, which begins in earnestin the United States on Tuesday, mounting after a batch ofdownbeat updates.
Cookson Group , which makes products for the globalsteel industry, and recruiter Michael Page on Mondaybecame the latest UK firms to issue profit warnings.
Cookson fell 14.4 percent, while Michael Page shed 5.4percent in early deals.
(Reporting by David Brett; editing by Simon Jessop)
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Keywords: MARKETS BRITAIN STOCKS/OPEN