This week's biggest % winners & losers (October 19 - 23, 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:ADAP (9.71 +33.38%),NWBO (5.14 +22.67%),ATHN (163.37 +22.02%),QSII (15.05 +21.18%),NEO (7 +19.05%),ACOR (36.14 +17.38%),INFI(10.41 +17.1%),ONCE (61.81 +17.04%)
• Materials:SA (8.91 +29.32%),BCC (32.87 +17.06%)
• Industrials:TBI (28.69 +27.85%),HA (34.84 +17.66%)
• Consumer Discretionary:LILA (40.96 +19.28%),LILAK (40.95 +17.27%)
• Information Technology:NTGR (41.85 +29.57%),GIMO (27.23 +23.72%),KLAC (65.35 +23.37%),QLGC (13.25 +22.57%)
• Energy:HLX (6.39 +20.57%)
• Telecommunication Services:EGHT (10.59 +17.28%)

This week's top 20 % losers

• Healthcare:OCUL (7.18 -55.95%),ENTA (24.01 -40.44%),CYH (28.71 -31.51%),PTCT (25.6 -27.38%),RLYP (13.8 -26.08%),MMSI (17.91 -25.9%),NVCR (19.52 -24.87%),RMTI (10.25 -23.85%),RGNX (14.15 -23.72%),EVHC (27.57 -22.79%),BDSI (5.28 -22.35%)
• Industrials:HURN (46.62 -26.33%)
• Consumer Discretionary:EROS (14.65 -44.55%),SKX (31.64 -29.92%),APOL(7.42 -28.24%),PSO (13.69 -25.72%),CAB (33.6 -23.02%),ACAT (19.9 -21.34%)
• Information Technology:P (12.39 -37.77%),RMBS (10.65 -22.66%)