This week's biggest % winners & losers : Oct 1 - 5, 18 (wk 40)

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: AMRN (19.8 +21.7%), PRTK (11.6 +19.59%), COLL (17.08 +15.88%), DERM (12.43 +14.04%)
• Industrials: GOL (6.41 +17.4%), GE (13.18 +16.74%), RECN (18.96 +14.22%)
• Consumer Discretionary: BKS (6.95 +19.83%)
• Information Technology: EEFT (116.84 +16.58%)
• Financials: ITG (27.94 +28.99%), BSBR (10.22 +16%)
• Energy: NAT (2.41 +15.31%), PBR (13.91 +15.24%)
• Utilities: CIG (2.18 +27.49%), EBR (4.86 +24.94%), ELP (6.18 +17.27%), SBS (6.81 +15.42%)

This week's top 20 % losers

• Healthcare: AKRX (5.96 -54.08%), OMER (13.97 -42.77%), LMAT (28.53 -26.36%), MNTA (21.27 -19.13%), CYH (2.8 -19.08%), ADRO (5.95 -19.05%), PACB (4.38 -19.04%)
• Materials: CENX (9.97 -16.71%)
• Industrials: AYI (130.99 -16.67%)
• Consumer Discretionary: DLPH (26.01 -17.06%), EDU (61.46 -16.96%), GIII (40.23 -16.52%)
• Information Technology: SMCI (12.4 -39.86%), RTEC (19.67 -19.55%), NANO (30.71 -18.15%)
• Energy: REI (8.19 -17.36%)