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** Argos-owner Home Retail's shares +3.5 pct,second-largest FTSE 250 gainers, after UK's Competitionand Markets Authority clears Sainsbury's acquisition ofco
** CMA says its investigation found deal will not hurtcompetition in the UK
** A fifth of co's daily avg vols gone through in the first40 minutes of trade
** Sainsbury's shares down 0.3 pct vs 0.2 pct fallin FTSE 100, a tenth of their 30-day avg vols gonethrough in the first 40 minutes of trade (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)
