10 Biggest U.S. Gainers & Losers for the Week.

 10 BIGGEST U.S. GAINERS FOR THE WEEK  (By Percent)            (By Dollars)  Sima Thera       56.30  Martek Bio       3.84 Diacrin          42.34  ICOS             2.89 Pain Therapeu    39.57  Amgen            2.25 CytRx            36.08  Gilead Sciences  2.24 Genzyme Biosurg  34.62  OSI Pharma       2.19 Valentis         32.65  Chiron           2.03 Xenova Group     32.10  Biogen           1.72 ArQule           31.27  Cephalon         1.57 ViroPharma       30.77  Sirna Thera      1.52 Discovery Labs   30.68  Pain Therapeu    1.10  10 BIGGEST …