This week's biggest % winners & losers (December 28 - December 31, 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:ATRA (26.41 +11.86%),COLL (27.5 +9.96%),ADAP (12.06 +9.64%),CARA (16.86 +9.34%),PMC (35 +8.36%)
• Industrials:TGI (39.75 +15.55%),CMRE (10.42 +8.77%)
• Consumer Discretionary:VDTH (8.88 +8.82%),DFRG (16.02 +8.68%)
• Information Technology:GLOB (37.51 +8.07%),CSRA (30 +7.07%)
• Energy:FELP (3.53 +21.72%),NSH (21.15 +12.32%),RICE (10.9 +10.55%),ECR (1.82 +8.33%),TEGP (15.97 +8.2%),SEP (47.7 +7.36%),GPP (16.25 +6.77%),TNP(7.92 +6.74%)
• Consumer Staples:BETR (11.52 +7.36%)

This week's top 20 % losers

• Healthcare:CMRX (8.95 -74.84%),FLML (12.21 -17.78%),ADXS (10.06 -16.17%),NVCR (22.36 -13.77%),RGLS (8.72 -13.32%),LOXO (28.45 -12.68%)
• Materials:TROX (3.91 -18.03%),GSM (10.75 -15.09%)
• Industrials:ABGB (1.28 -16.88%)
• Information Technology:DDD (8.69 -17.24%),SUNE (5.09 -14.02%),SSYS(23.48 -12.36%)
• Financials:CAF (19.91 -29.77%),CIA (7.43 -13%)
• Energy:LINE (1.29 -15.69%),VNR (2.98 -15.1%),PWE (0.84 -12.8%),DNR(2.02 -12.17%),SDRL (3.39 -11.49%)
• Consumer Staples:NHTC (33.53 -26.93%)