Closing Glance: Biotechnology stocks mostly rise

Shares of biotechnology companies closed mostly higher Thursday as the broader market rose on reports of better-than-expected April retail sales.

Here's how several key biotechnology stocks performed Thursday:

Gilead Sciences Inc., up 88 cents to $54.11.

Amgen Inc., down 18 cents to $42.02.

Biogen Idec Inc., up 68 cents to $62.70.

Genentech Inc., up 67 cents to $68.32.