This week's biggest % winners & losers : Dec 31 - Jan 4, 19 (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: CELG (84.9 +35.99%), EPZM (7.94 +31.46%)
• Industrials: BLDP (2.98 +19.68%)
• Consumer Discretionary: GME (15.24 +24.1%), BEDU (11.04 +19.74%)
• Information Technology: INSG (4.93 +23.25%)
• Financials: LTS (2.83 +23.04%), JT (4.81 +19.95%)
• Energy: DNR (2.19 +27.33%), CVIA (4.27 +25.96%), CRK (5.8 +25.81%), NBLX (33.44 +23.17%)
• Utilities: EBR (8.27 +29.22%), SBS (10.07 +25.56%)

This week's top 20 % losers

• Healthcare: MYOK (42.33 -14.93%), ATRA (29.96 -12.73%), PCRX (38.06 -10.47%), ALGN (186.71 -10.36%), BMY (46.89 -7.95%), GMED (40 -6.87%), MMSI (51.31 -6.66%)
• Materials: RPM (52.26 -9.85%)
• Consumer Discretionary: UXIN (3.6 -29.13%)
• Information Technology: ARLO (9 -15.65%), PLAN (24.1 -11.3%), OLED (83.07 -9.95%), STM (12.6 -9.09%), MLNX (83.92 -8.68%), AVGO (233.23 -8.03%), KN (12.38 -7.75%), VMW (138.91 -12.29%), BITA (20.61 -9.25%)