** UBS BB put Brazil's food retailer GPA SA PCAR3.SA rating
and target price under review after the announcement of a
potential IPO related to its e-commerce unit CNOVA
**France's Casino Guichard Perrachon SA announced on Monday
it is considering potential capital increases in CNOVA
subsidiaries Cdiscount and Green Yellow
**Brazil's GPA owns 34.17% of CNOVA and has priority on the
sale of shares if the company is listed, but it is not clear if
the priority is kept in subsidiaries
** "Value creation for CBD is potentially high," UBS BB
analysts led by Gustavo Oliveira said in a note to clients
** The CBD stake could be worth between 7.85 reais and 44.90
reais per share, the analysts say
(Reporting by Tatiana Bautzer)
((Reuters Messaging: XXX.XXXX.thomsonreuters.com@reuters.net))