SAN FRANCISCO (MarketWatch) -- Bristol-Myers Squibb Co. late Tuesday said it will buy ZymoGenetics Inc. for $9.75 a share in cash. The total purchase price is $885 million, or about $735 million net of cash acquired, Bristol-Myers Squibb said. Bristol-Myers Squibb said the purchase will lower earnings by 3 cents a share in 2010, and by 7 cents in 2011. Analysts surveyed by FactSet Research expect 2010 earnings of $2.17 a share, and $2.33 a share for 2011.

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