This week's biggest % winners & losers : Jan 3-6, 17 (wk 1)

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:BIOS (1.51 +45.19%),HALO (13.38 +35.43%),CEMP (3.75 +33.93%),PACB (4.85 +27.63%),ARWR (1.96 +26.45%),PCRX (40.05 +23.99%),SRNE (5.9 +20.41%),SGMO (3.65 +19.67%),QHC (8.63 +18.71%),ATRA (16.8 +18.31%)
• Materials:MUX (3.51 +20.62%)
• Industrials:TGH (9.5 +27.52%),CEB (75.95 +25.33%)
• Consumer Discretionary:STON (10.8 +21.21%)
• Energy:NE (7.33 +23.82%),ESV (11.68 +20.16%),WFT (5.91 +18.44%)
• Telecommunication Services:NIHD (2.75 +27.91%)
• Utilities:FGP (8.44 +24.67%)

This week's top 20 % losers

• Healthcare:CSLT (4.3 -13.13%),MACK (3.6 -11.76%)
• Materials:GSM (9.8 -9.51%)
• Industrials:RECN (16.85 -12.47%),HURN (46 -9.18%)
• Consumer Discretionary:SMRT (4.51 -17.7%), KSS (41.43 -16.1%),CATO (25.82 -14.16%),M (30.82 -13.93%),RRGB (48.85 -13.39%),TLRD (22.33 -12.6%),DDS (56.38 -10.07%),DSW (20.44 -9.76%),JCP (7.57 -8.9%),EROS (11.9 -8.81%)
• Information Technology:EIGI (8.2 -11.83%),FN (36.19 -10.2%)
• Energy:PBF (25.12 -9.9%),CVI (23.01 -9.37%)
• Consumer Staples:ANDE (39.15 -12.42%)