This week's biggest % winners & losers (February 17 - 20, 2015)

The following are this week's top 20 percentage gainers and top 20 percentage losers, categorized by sectors (over $300 mln market cap and 100K average daily volume).

This week's top 20 % gainers

• Healthcare:THRX (18.22 +22.69%),DRNA(26.02 +22.16%),ADPT (41.89 +20.13%),SRPT (15.21 +19.2%),XOMA (4.05 +18.77%),TTPH (41.66 +18.42%),PRTA(26.63 +16.34%),TSRO (44.2 +14.84%)
• Materials:UAN (13.79 +16.47%)
• Industrials:ATRO (66.89 +16.8%),TILE (18.91 +16.23%)
• Consumer Discretionary:TTS (11.1 +29.52%),VIPS (25.64 +17.61%),BJRI (53.07 +16.33%)
• Information Technology:CYBR (70.35 +33.95%),EBIX (28.13 +18.19%),Z (125.42 +17.77%)
• Financials:NBG (1.96 +21.74%)
• Energy:CAK (0.38 +14.83%)
• Telecommunication Services:SAAS (11.24 +17.94%)

This week's top 20 % losers

• Healthcare:GTS (18.44 -23.26%),CSLT (7.16 -22.09%),AXDX (18.05 -21.04%),GEN (7.21 -16.45%)
• Materials:CDE (5.84 -19.67%),PAAS (10 -15.61%),BCC (37.04 -13.62%)
• Consumer Discretionary:NDLS (18.9 -27.2%),EROS (15.77 -18.37%)
• Information Technology:FUEL (10.82 -24.34%),MX (5.86 -22.07%),VRNS (29.88 -19.98%),HOLI (18.93 -19.28%),QIHU (51.46 -14.91%)
• Financials:UIHC (22.97 -16.17%)
• Energy:CHKR (6.48 -20.88%),MCF (25.37 -16.98%),HLX (15.9 -16.67%),GLF (16.51 -14.23%)
• Telecommunication Services:I (13.19 -23.76%)