This week's biggest % winners & losers : Dec 12 - 16, 16 (wk 50)

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:QHC (8 +25.39%),ATHN (114.56 +19.09%),SGMO (3.65 +14.06%),VSAR (14.85 +13.36%),KITE (51.82 +12.92%),AKRX (20.93 +12.53%),EBS (35.88 +10.84%),HZNP (16.44 +10.82%),UTHR (144.56 +9.77%)
• Materials:MTL (6.09 +18.48%)
• Industrials:BRSS (34.1 +11.8%)
• Consumer Discretionary:PIR (8.68 +27.46%),ENT (7.3 +12.23%)
• Information Technology:NSR (33.2 +18.36%),WEB (19.85 +14.08%),PAY (18.43 +11.97%), JBL (24.15 +11.7%)
• Financials:GCAP (6.91 +10.74%),MC (32.8 +9.88%)
• Energy:CWEI (108.7 +15.11%)

This week's top 20 % losers

• Healthcare:OPHT (5.18 -86.65%),PACB (3.95 -43.17%),INOV (9.4 -37.54%),MGNX (20.26 -25.38%),FOLD (4.83 -20.69%),RMTI (6.49 -19.48%)
• Materials:SA (7.7 -18.52%),AG (7.22 -17.86%),PVG (7.1 -16.27%),PPP (0.75 -15.67%),GGB (3.22 -15.49%)
• Consumer Discretionary:JWN (50.48 -16.91%),ANF (13.31 -15.71%),JCP (8.62 -15.57%)
• Information Technology:HIMX (6.23 -16.11%)
• Financials:FNBC (6.9 -24.59%)
• Energy:GPOR (21.65 -26.66%),SWN (10.49 -16.81%),RICE (20.55 -16.77%)
• Telecommunication Services:NIHD (2 -14.89%)