This week's biggest % winners & losers (August 31 - September 4, 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:MDCO (40.42 +20.15%),THRX (15.99 +15.7%)
• Materials:GEF (33.03 +13.16%),FTK (20.7 +12.75%)
• Industrials:NCS (11.79 +13.58%),BRSS (20.74 +12.05%)
• Consumer Discretionary:VRA (13.95 +33.24%),CRWN (5.23 +17%),LE (28.31 +15.98%),FRAN (12.81 +14.68%)
• Information Technology:MEI (32.12 +20.07%),SUNE (11.99 +16.41%),INAP(9.27 +15.16%),DIOD (22.9 +14.9%),MB (15.45 +12.45%)
• Financials:OFG (8.49 +17.1%)
• Energy:MTRX (22.94 +14.24%),NNA (3.75 +11.94%)
• Consumer Staples:BGS (36.17 +18.55%),CENTA (14.48 +15.38%)

This week's top 20 % losers

• Healthcare:CFMS (14.18 -28.31%),KERX (4.76 -25.86%),TDOC (20.82 -24.89%),HTWR (65.19 -24.42%),ARIA (7.97 -19.41%),OMER (12.71 -18%),SPPI(6.28 -17.37%),SGMO (6.57 -16.31%)
• Materials:PPP (2.36 -20.27%),CDE (2.88 -16.52%),HMY (0.77 -16.08%)
• Industrials:JOY (18.63 -22.41%)
• Consumer Discretionary:VNCE (5.24 -42.16%),GPRO (36.83 -23.56%)
• Information Technology:AMBA (73.24 -23.95%),QIWI (21.44 -18.17%),CRTO(36.14 -16.15%)
• Financials:PHK (7.97 -16.02%)
• Energy:PWE (0.64 -19.09%)
• Consumer Staples:CVGW (49.24 -16.87%)