NEW YORK—Shares of biotechnology companies opened higher Tuesday as the broader market rose after Federal Reserve chairman Ben Bernanke said the central bank might extend its lending efforts to investment banks.
Here's how several key biotechnology stocks performed Tuesday:
Gilead Sciences Inc., up 66 cents at $52.34.
Amgen Inc., up 8 cents to $50.35.
Biogen Idec Inc., up $1.09 to $59.96.
Genentech Inc., up 96 cents to $76.77.
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