BUZZ-Cott Corp: Rating upgrade
** Canadian beverage maker's shares up 2.6 pct at $7.48
** Stifel raised its rating on the stock to "buy" from "hold" citing expanding contract manufacturing business in North America
** Analysts expect Cott's improving fruit drinks and juices business to offset the declining carbonated soft drink business
** Analysts say soft drink prices likely to improve
** Up to Wednesday's close, the company's Canadian-listed shares had fallen more than 7 pct this year
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