This week's biggest % winners & losers : Dec 4 -8, 17 (wk 49)

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: SAGE (167.34 +79.9%), RVNC (34.65 +25.32%), SCMP (16 +25%), IMMU (12.44 +18.7%), BGNE (95.98 +18.49%), INSY (6.09 +16%)
• Materials: GEF (64.03 +17.83%), UAN (3.71 +17.41%)
• Industrials: BGC (29.75 +36.47%), AVAV (55.66 +24.46%), NCS (20 +21.58%), GRAM (3.24 +16.97%)
• Consumer Discretionary: VRA (11.66 +37.18%), LE (15.75 +35.19%), BNED (7.49 +22.99%), GCO (29.9 +17.03%)
• Information Technology: CCRC (16.7 +17.77%), FSLR (70.02 +16.12%)
• Financials: BMA (118.77 +15.13%)
• Consumer Staples: BETR (6.45 +16.85%)

This week's top 20 % losers

• Healthcare: CFMS (2.5 -17.22%), EDIT (24.96 -16.44%), ONVO (1.39 -15.76%)
• Materials: TROX (19.84 -18.92%), AKG (0.51 -18.6%)
• Industrials: AGX (47.3 -18.87%)
• Consumer Discretionary: FRED (3.75 -26.33%), ICON (1.38 -26.2%), ASNA (1.99 -19.43%), FRAN (6.15 -17%)
• Information Technology: VECO (11.9 -24.44%), HIMX (10.5 -21.7%), OSIS (68.42 -19.03%),
• Financials: LC (3.51 -18.37%)
• Energy: BBG (4.74 -20.74%), SDRL (0.25 -15.89%), AAV (4 -15.79%), OSG (2.54 -14.48%)
• Telecommunication Services: IDT (11.47 -26.85%), GSAT (1.33 -15.82%)