Netherlands-based supermarket chain Super de Boer NV (SDB.AE), which is majority-owned by France's Casino Guichard-Perrachon SA (CO.FR), said Friday it received a takeover offer from Dutch peer Jumbo Groep Holding BV that values it at EUR560 million.

Super de Boer said that Jumbo is offering to pay EUR4.20 per share and that Casino, which holds around 57% in the company, will support the offer if Super de Boer's management and supervisory board approve it.

The offer values Casino's stake at an estimated EUR300 million, which would result in a "slight capital gain" for the French retailer, a Casino spokeswoman said Friday. The sale would be part of Casino's plans to sell EUR1 billion in assets by the end of next year, she added.

Super de Boer shares soared following the news. Around 1045 GMT, they traded 18.6%+ higher at EUR4.14, while the midcap market in Amsterdam was up 0.7%.

Analysts were surprised by the takeover offer.

Jumbo's bid for Super de Boer "appears expensive", said SNS Securities analyst Richard Withagen. He upgraded the stock to hold from sell.

KBC Securities considered Royal Ahold NV's (AH.AE) Albert Heijn unit to be the most likely buyer of Super de Boer and said it wouldn't be surprised if the Dutch retail giant will make a counter bid. The brokerage also doesn't rule out Schuitema, a supermarket operator owned by U.K.'s private equity firm CVC Capital Partners Ltd, to make a bid.

However, Albert Heijn is not interested in buying Super de Boer, spokesman Jan Christiaan Hellendoorn told Dow Jones Newswires. "Albert Heijn hasn't made an offer to buy Super de Boer and is absolutely not planning to do so", he said, adding that Ahold could be interested in acquiring 50 Super de Boer stores "at most", to add to Albert Heijn's current portfolio.

Schuitema wasn't immediately available for comment.

Company Web Sites: www.superdeboer.nl; http://www.groupe-casino.com/;

By Maarten van Tartwijk; Dow Jones Newswires; +31-20-5715-200; maanrten.vantartwijk@dowjones.com

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